(DESCRIPTION)
FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
1. Title of the Invention:
Polymerization Inhibiting And Emulsion Breaking Composition And Method Of
Use Thereof.
2. Applicant(s):
(a) Name : DORF KETAL CHEMICALS (INDIA) Private Limited
(b) Nationality : An Indian Company
(c) Address : Dorf Ketal Tower, D’Monte Street, Orlem, Malad (W), MUMBAI –
400 064, Maharashtra, INDIA
3. Preamble to the Description:
COMPLETE SPECIFICATION:
The following specification particularly describes the Invention and the manner in
which it is to be performed.
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TITLE OF INVENTION:
Polymerization Inhibiting And Emulsion Breaking Composition And Method Of Use
Thereof.
TECHNICAL FIELD OF THE INVENTION:
5 Firstly, the present invention is not for the purpose of defence.
The present invention relates to a polymerization inhibiting and emulsion breaking
composition and method of use thereof.
Particularly, the present invention relates to a polymerization inhibiting and emulsion
breaking composition and method of use thereof for inhibiting polymerization and
10 breaking emulsions formed between hydrocarbon and caustic.
More particularly, the present invention relates to a polymerization inhibiting and
emulsion breaking composition comprising: an amino acid and a borohydride for
inhibiting polymerization and breaking emulsions formed between hydrocarbon and
caustic.
15 More particularly, the present invention also relates to use of an additive composition
comprising: an amino acid and a borohydride for inhibiting polymerization and breaking
emulsions formed between hydrocarbon and caustic.
The present invention also relates to a use of an additive composition comprising: an
amino acids and a borohydride for prevention of fouling caused due to polymerization in
20 a basic solution that is in contact with a gaseous or liquid hydrocarbon stream that is
effluent from a hydrocarbon cracking operation.
BACKGROUND OF THE INVENTION:
In pyrolytic cracking operations, feedstocks such as ethane, propane, naphtha, kerosene,
gas oil, fuel oil and the like undergo “cracking”, i.e. the removal of hydrogen, to form
25 unsaturated hydrocarbons. Pyrolytic cracking also tends to produce oxygenated
hydrocarbons, including carbonyl compounds such as acetaldehyde. In a typical
operation, the cracked effluent stream is quenched and fractionated and compressed.
Acidic contaminants such as hydrogen sulfide, carbon dioxide and mercaptans are
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typically then removed from the effluent hydrocarbon stream by washing in a caustic
scrubber.
The caustic scrubber partially removes the oxygenated hydrocarbons. At the same time,
however, the basic conditions in the scrubber tend to cause base-induced condensation
5 reactions of the carbonyl compounds, including in particular aldehydes (e.g.,
acetaldehyde) and/or ketones, which in turn result in the formation of polymers.
The polymerization of oxygenated compounds, such as carbonyl-containing organics in
basic solutions, has been stopped by adding amine compounds such as hydroxylamine
hydrochloride, hydroxylamine sulfate, hydrazine, carbohydrazides and the like. Several
10 patents relate to methods of inhibiting carbonyl fouling.
The inventor had earlier reported, in the US patent no. US 6,986,839 B2 (US839), a
method to inhibit polymerization, which had also been found to have advantage to
dissolve the deposits formed on polymerization. In US839, to inhibit polymerization and
to solubilize deposits formed on polymerization, the inventor had suggested use of
15 lactams or amino acids. As per the disclosure of US839, additive selected from the group
consisting of 6-amino hexanoic acid, taurine, NH2(CH2)xYOzOH, where x is an integer
from 1 to 12, Y can be S or C, and z=1 to 2, isomers, salts, and combinations thereof, and
beta alanine and salts thereof is effective to inhibit polymerization and dissolve deposits
formed on the polymerization.
20 The inventor had also reported in US839 that additive selected from the group consisting
of an acid salt of 6-amino hexanoic acid with an acid selected from the group consisting
of hydrochloric acid, sulfuric acid, perchloric acid and organic acids is effective to inhibit
polymerization and dissolve deposits formed on the polymerization.
The inventor had also reported in US839 that additive selected from the group consisting
25 of 6-amino hexanoic acid and sodium salts of 6-amino hexanoic acid is also effective to
inhibit polymerization and dissolve deposits formed on the polymerization when the
component in the feed stream is a carbonyl compound and when the molar ratio of
carbonyl compound to 6-amino hexanoic acid or sodium salts of 6-amino hexanoic acid is
between 1:10 and 1:0.01.
30 However, the inventor has found that the additive disclosed in the US839, which is:
a) either 6-amino hexanoic acid,
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b) or an acid salt of 6-amino hexanoic acid,
c) or a sodium salt of 6-amino hexanoic acid,
may be effective in inhibiting the polymerization (in controlling the polymer formation),
but these do not overcome the problems of emulsions formed between the hydrocarbon
5 and the caustic, hence the additives of US839 are not effective in avoiding formation of
emulsions and in breaking the emulsions formed.
The inventor has observed that time to break the emulsions formed is substantially higher
when the additive of US839 is used. As per the experimental data presented in the Table1 of the present invention, the inventor has found that:
10 i) for the dosage of 0.25 ml (0.29 g), the time to break the emulsion after toluene
extraction is about 4 min,
ii) for the dosage of 0.30 ml (0.34 g), the time to break the emulsion after toluene
extraction increases to about 5 min,
iii) for the dosage of 0.35 ml (0.40 g), the time to break the emulsion after toluene
15 extraction increases to about 7 min,
iv) for the dosage of 0.40 ml (0.46 g), the time to break the emulsion after toluene
extraction increases to about 12 min,
v) for the dosage of 0.50 ml (0.57 g), the time to break the emulsion after toluene
extraction increases to about 14 min.
20 From the above-discussed experimental data of Table 1 of the prior art US839, it is
clearly understood that time to break the emulsion is substantially higher at each dosage,
which substantially increases further from about 4 min to about 14 min with the increase
in dosage from 0.25 ml (0.29 g) to 0.50 ml (0.57 g) of the additive of the US839, and such
a composition and a method are highly uneconomical.
25 NEED OF THE INVENTION:
Therefore, there is a need for an additive or an additive composition, which is not only
effective in inhibiting and controlling polymerization but is also effective in reducing or
almost eliminating a tendency to form emulsions, and if the emulsions are formed, then
has tendency to break the emulsions.
30 Accordingly, there is a need for an additive composition, which is not only effective in
inhibiting and controlling polymerization, but is also effective in reducing or almost
eliminating a tendency to form emulsions, and if the emulsions are formed, then is
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effective in breaking the emulsions formed, and time to break the emulsions formed is
substantially reduced or lowered even at a lower dosage of the additive composition; and
furthermore the time to break the emulsions formed does not increase substantially with
increase in the dosage of the additive composition, hence be economical.
5 PROBLEM TO BE SOLVED BY THE INVENTION:
Therefore, aim of the present invention is to provide an additive composition, which is
not only effective in inhibiting and controlling polymerization but is also effective in
reducing or almost eliminating tendency to form emulsions, and if the emulsions are
formed, then has tendency to break the emulsions.
10 Accordingly, aim of the present invention is to solve the problems of the prior art by
providing an additive composition, which should not only be effective in inhibiting and
controlling polymerization, but should also be effective in reducing or almost eliminating
tendency to form emulsions, and if the emulsions are formed, then should also be
effective in breaking the emulsions formed, and time to break the emulsions formed
15 should be substantially reduced or lowered even at a lower dosage of the additive
composition; and furthermore the time to break the emulsions formed should not increase
substantially with increase in the dosage of the additive composition, hence be
economical.
OBJECTS OF THE INVENTION:
20 Therefore, this is an object of the present invention to provide an additive composition,
which is not only be effective in inhibiting and controlling polymerization, but is also be
effective in reducing or almost eliminating tendency to form emulsions, and if the
emulsions are formed, then is also be effective in breaking the emulsions formed, and
time to break the emulsions formed is substantially reduced or lowered even at a lower
25 dosage of the additive composition; and furthermore the time to break the emulsions
formed is not increased substantially with increase in the dosage of the additive
composition, hence is economical.
This is also an object of the present invention to provide a method for inhibiting and
controlling polymerization and simultaneously for breaking emulsions by treating a
30 polymerizable material with the additive composition of the present invention.
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This is also an object of the present invention to provide a use of an additive composition
for inhibiting and controlling polymerization and simultaneously for breaking emulsions
formed by treating a polymerizable material with the additive composition of the present
invention.
5 This is also an object of the present invention to provide a use of an additive composition
for prevention of fouling by inhibiting polymerization in a basic solution that is in contact
with a gaseous or liquid hydrocarbon stream that is effluent from a hydrocarbon cracking
operation.
Further objects of the present invention would be apparent from the following description
10 of the invention.
DESCRIPTION OF THE INVENTION:
With aim to solve the above-discussed problems of the prior art, the inventor has found
that if a composition comprising: an amino hexanoic acid and a borohydride is added to a
polymerizable material or a stream of the polymerizable material, then it, surprisingly and
15 unexpectedly, demonstrates a synergistic effect by being effective in reducing or almost
eliminating the tendency to form emulsions, and if the emulsions are formed, then to
break the emulsions formed, and also by being effective in inhibiting and controlling the
polymerization.
The inventor has found that the composition comprising: an amino hexanoic acid and a
20 borohydride has been surprisingly and unexpectedly found to be suitable to substantially
reduce the time to break the emulsions formed even at lower dosage of the additive
composition; and furthermore it has also been surprisingly and unexpectedly found that
the time to break the emulsions formed does not increase substantially with increase in
dosage of the additive composition of the present invention.
25 Accordingly, in first embodiment, the present invention relates to an additive composition
to inhibit and control polymerization, and simultaneously to reduce or almost eliminate
tendency to form emulsion, and if the emulsion is formed, then to break the emulsion
formed, wherein the additive composition comprises: an amino hexanoic acid and a
borohydride.
30 Accordingly, in second embodiment, the present invention relates to a method to inhibit
and control polymerization, and simultaneously to reduce or almost eliminate formation
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of emulsion, and if the emulsion is formed, then to break the emulsion formed by treating
the polymerizable material with the additive composition of the present invention.
Accordingly, in third embodiment, the present invention relates to use of an additive
composition for inhibiting and controlling polymerization, and simultaneously for
5 reducing or almost eliminating formation of emulsion, and if the emulsion is formed, then
to break the emulsion formed by using the additive composition of the present invention
in the stream of the polymerizable material.
Therefore, in one aspect, the present invention relates to an additive composition
comprising: an amino hexanoic acid and a borohydride for inhibiting and controlling
10 polymerization and simultaneously for breaking emulsions formed.
In accordance with one of the embodiments of the present invention, the amino hexanoic
acid is a 6-amino hexanoic acid, or may be used as: an acid salt of 6-amino hexanoic acid
or a sodium salt of 6-amino hexanoic acid, or any other salt of 6-amino hexanoic acid.
In accordance with a preferred embodiment of the present invention, the amino hexanoic
15 acid is preferably a 6-amino hexanoic acid.
In accordance with one of the embodiments of the present invention, the borohydride may
be sodium borohydride, potassium borohydride, lithium borohydride, ammonium salt of
borohydride, or sodium triisopropoxy borohydride. The ammonium salt of borohydride
may be tetramethylammonium borohydride, or tetraethylammonium borohydride.
20 In accordance with a preferred embodiment of the present invention, the borohydride is
preferably a sodium borohydride (NaBH4).
Therefore, in accordance with first embodiment, the present invention relates to an
emulsion breaking additive composition comprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
25 an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or a
mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
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Therefore, in accordance with second embodiment, the present invention also relates to an
additive composition for breaking emulsions, and simultaneously for inhibiting and
controlling polymerization, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
5 an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or a
mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
10 In accordance with the first and second embodiments of the present invention, the amino
hexanoic acid is preferably 6-amino hexanoic acid.
In accordance with the first and second embodiments of the present invention, the
borohydride is preferably sodium borohydride (NaBH4).
In accordance with the first and second embodiments of the present invention, the
15 polymerizable material is selected from a material having tendency to get polymerized on
heating, on condensation, or on cracking.
In accordance with the first and second embodiments of the present invention, the
polymerizable material is a polymer formed on aldol condensation, preferably on aldol
condensation of acetaldehyde.
20 In accordance with the first and second embodiments of the present invention, the
ammonium salt of borohydride is selected from the group comprising:
tetramethylammonium borohydride, and tetraethylammonium borohydride.
Therefore, in accordance with third embodiment, the present invention relates to a method
for breaking emulsion, and simultaneously inhibiting and controlling polymerization of a
25 polymerizable material, wherein the method comprise a step of treating the polymerizable
material with an additive composition, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid, an
acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or a
mixture thereof [compound-A]; and
30 (b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
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In accordance with the third embodiment of the present invention, the amino hexanoic
acid is preferably 6-amino hexanoic acid.
In accordance with the third embodiment of the present invention, the borohydride is
preferably sodium borohydride (NaBH4).
5 In accordance with the third embodiment of the present invention, the amino hexanoic
acid and the borohydride are preferably added in a one step process as a blend or a
mixture in the polymerizabale material.
In accordance with the third embodiment of the present invention, the emulsion is formed
between a hydrocarbon and caustic.
10 In accordance with the third embodiment of the present invention, the polymerizable
material is selected from a material having tendency to get polymerized on heating, on
condensation, or on cracking.
In accordance with the third embodiment of the present invention, the polymerizable
material is a polymer formed on aldol condensation, preferably on aldol condensation of
15 acetaldehyde.
Accordingly, in accordance with fourth embodiment, the present invention relates to a use
of an additive composition for breaking the emulsion, and simultaneously for inhibiting
and controlling polymerization of a polymerizable material, wherein the method comprise
20 a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid, an
acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or a
mixture thereof [compound-A]; and
25 (b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
In accordance with the fourth embodiment of the present invention, the amino hexanoic
acid is preferably 6-amino hexanoic acid.
30 In accordance with the fourth embodiment of the present invention, the borohydride is
preferably sodium borohydride (NaBH4).
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In accordance with the fourth embodiment of the present invention, the amino hexanoic
acid and the borohydride are preferably added in a one step process as a blend or a
mixture in the polymerizabale material.
In accordance with the fourth embodiment of the present invention, the emulsion is
5 formed between a hydrocarbon and caustic.
In accordance with the fourth embodiment of the present invention, the polymerizable
material is selected from a material having tendency to get polymerized on heating, on
condensation, or on cracking.
In accordance with the fourth embodiment of the present invention, the polymerizable
10 material is a polymer formed on aldol condensation, preferably on aldol condensation of
acetaldehyde.
Accordingly, in accordance with fifth embodiment, the present invention relates to a use
of an additive composition for preventing fouling, wherein the method comprises a step
of adding the additive composition to the polymerizable material, wherein the additive
15 composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid, an
acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or a
mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
20 borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
In accordance with the fifth embodiment of the present invention, the amino hexanoic
acid is preferably 6-amino hexanoic acid.
In accordance with the fifth embodiment of the present invention, the borohydride is
25 preferably sodium borohydride (NaBH4).
In accordance with the fifth embodiment of the present invention, the emulsion is formed
between a hydrocarbon and caustic.
In accordance with the fifth embodiment of the present invention, the polymerizable
material is selected from a material having tendency to get polymerized on heating, on
30 condensation, or on cracking.
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In accordance with the fifth embodiment of the present invention, the polymerizable
material is a polymer formed on aldol condensation, preferably on aldol condensation of
acetaldehyde.
In accordance with the fifth embodiment of the present invention, the fouling is caused or
5 formed by polymerization of a polymerizable material in a basic solution,
In accordance with the fifth embodiment of the present invention, the basic solution is in
contact with a gaseous stream or a liquid hydrocarbon stream.
In accordance with the fifth embodiment of the present invention, the gaseous stream and
the liquid hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
10 In accordance with the fifth embodiment of the present invention, the amino hexanoic
acid and the borohydride are preferably added in a one step process as a blend or a
mixture in the polymerizabale material.
In accordance with the fifth embodiment of the present invention, the fouling is caused by
polymerization in a basic solution that is in contact with a gaseous or liquid hydrocarbon
15 stream that is effluent from a hydrocarbon cracking operation.
In accordance with one of embodiments of the present invention, the components: the
amino hexanoic acid and the borohydride of the present additive composition may be
added in any order in the polymerizabale material.
However, it has been found that if the components: the amino hexanoic acid and the
20 borohydride of the present additive composition are added together as a blend or a
mixture in the polymerizabale material, then it has been surprisingly and unexpectedly
found that the time to break the emulsions formed is substantially lowered as compared to
separately adding the components: the amino hexanoic acid and the borohydride of the
present additive composition.
25 Therefore, in accordance with one of the more preferred embodiments of the present
invention, it relates to a method for inhibiting and controlling polymerization, and to
break emulsions by treating a polymerizable material with an additive composition,
wherein the additive composition comprises:
(a) amino hexanoic acid; and
30 (b) borohydride; and
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wherein the amino hexanoic acid and the borohydride are added together as a blend or a
mixture in the polymerizabale material.
In accordance with one of the preferred embodiments of the present invention, it has been
surprisingly and unexpectedly found that:
5 (i) for the dosage of 0.25 ml (0.29 g) of the present composition comprising: about
98% of 6-amino hexanoic acid and about 2% of sodium borohydride (NaBH4), the
time to break the emulsion after toluene extraction is immediate as against about 4
min when the additive of prior art was used;
(ii) similarly, for the dosage of 0.30 ml (0.34 g) of the present composition
10 comprising: about 98% of 6-amino hexanoic acid and about 2% of sodium
borohydride (NaBH4), the time to break the emulsion after toluene extraction is
about 1 min as against about 5 min when the additive of prior art was used;
(iii) similarly, for the dosage of 0.35 ml (0.40 g) of the present composition
comprising: about 98% of 6-amino hexanoic acid and about 2% of sodium
15 borohydride (NaBH4), the time to break the emulsion after toluene extraction is
about 3 min as against about 7 min when the additive of prior art was used;
(iv) similarly, for the dosage of 0.40 ml (0.46 g) of the present composition
comprising: about 98% of 6-amino hexanoic acid and about 2% of sodium
borohydride (NaBH4), the time to break the emulsion after toluene extraction is
20 about 4 min as against about 12 min when the additive of prior art was used;
(v) similarly, for the dosage of 0.50 ml (0.57 g) of the present composition
comprising: about 98% of 6-amino hexanoic acid and about 2% of sodium
borohydride (NaBH4), the time to break the emulsion after toluene extraction is
about 4 min as against about 14 min when the additive of prior art was used.
25 In accordance with one of the preferred embodiments of the present invention, the 6-
amino hexanoic acid may be prepared by any method known in the art including, but not
limited to the methods described in examples 3, 4 or 10 of the US Patent No. US
6,986,839 B2 (US839).
As per one of the preferred embodiments, the polymer control may be measured by any
30 known method. In the examples of the present invention, the polymer control is measured
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by toluene soluble readings, and emulsion breaking tendency is measured by time taken
for the toluene and caustic phase to separate.
TECHNICAL ADVANTAGES OF THE INVENTION:
As can be understood from the foregoing discussions of the experimental findings, the
5 problems of the prior art have been solved, and the additive composition of the present
invention has been surprisingly and unexpectedly found to have technical advantages of
being effective not only in inhibiting and controlling the polymerization, but also being
effective in reducing or almost eliminating a tendency to form emulsions, and if the
emulsions are formed, then to break the emulsions within substantially reduced time.
10 Based on the experimental results of the present invention, the inventor, without being
bound by the theory or the mechanism, has found that the emulsion is formed on adding
the prior art additive: 6-amino hexanoic acid to the polymerizable material, and this
appears to be the reason for substantial increase in time to break the emulsion in a twostep process of the present invention. However, on combining the 6-amino hexanoic acid
15 with the NaBH4, that is, on adding the additive composition of the present invention in a
one step process as a blend or as a mixture, the emulsion formed breaks much faster than
on individually using the prior art additives, i.e. the 6-amino hexanoic acid additive of the
US patent no. US 6,986,839 B2 (US839) and the NaBH4 additive of the US patent No.
5582808 (US808), which confirms synergistic effect of the present invention.
20 Therefore, the present invention has been found to have both of the following technical
advantages:
(a) in inhibiting and controlling the polymerization; and
(b) having a tendency to reduce or almost eliminate formation of emulsion, and if the
emulsion is formed, then tendency to break the emulsion faster than the prior art
25 additives (i.e. of US839 and US808).
It may be noted herein, that neither US839 nor US808 discuss problems of emulsions
formed between hydrocarbon and caustic, then question of providing a solution to this
problem does not arise in US839 and US808.
Therefore, in accordance with the present invention, time to break the emulsions formed
30 has been substantially reduced even at the lower dosages of the present additive
composition; and furthermore the time to break the emulsions formed is also not
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increased substantially with increase in dosage of the additive composition of the present
invention.
The present invention also overcomes the problems of borohydrides as used in the prior
art US Patent No. US 5,582,808 (US808), wherein substantially higher amount of the
5 borohydride was required, particularly at about 4:1::carbonyl:borohydride molar ratio or
at least about 25%. Furthermore, the time to break the emulsions may have been reduced
on using the borohydride, but the polymerization is still higher. As can be observed from
the attached experimental data, as per the present invention, the amount of the
borohydride is generally very low, which not only results in faster breaking of emulsions,
10 but also results in inhibition and control of polymerization.
In accordance with embodiments of the present invention, the present composition may
comprise:
a) from about 99.9% to 90% by wt. of the amino hexanoic acid and about 0.1% to
10% by wt. of the borohydride,
15 b) preferably from about 99.9% to 95% by wt. of the amino hexanoic acid and about
0.1% to 5% by wt. of the borohydride,
c) more preferably from about 99.9% to 97% by wt. of the amino hexanoic acid and
about 0.1% to 3% by wt. of the borohydride,
d) even more preferably from about 99.9% to 97.5% by wt. of the amino hexanoic
20 acid and about 0.1% to 2.5% by wt. of the borohydride;
e) even more preferably from about 99.9% to 98.5% by wt. of the amino hexanoic
acid and about 0.1% to 1.5% by wt. of the borohydride;
as aim of the present invention is to reduce the amount of the borohydride,
In accordance with embodiments of the present invention, the amount of the present
25 composition as may be added to the polymerizable material may vary:
i) from about 5 ppm to 3000 ppm;
ii) preferably from about 5 ppm to 2000 ppm;
iii) more preferably from about 5 ppm to 1000 ppm;
iv) even more preferably from about 5 ppm to 500 ppm;
30 as aim of the present invention is to reduce the amount of additive composition.
The polymerizable material as referred herein is a material which has tendency to get
polymerize either on heating, or on condensation, or on cracking. As per one of the
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embodiments of the present invention, the polymerizable material as referred herein is a
polymer formed due to aldol condensation, preferably due to aldol condensation of
acetaldehyde, which may also be referred to as aldol or red tide polymers in the industry,
wherein vinyl acetate (VA) is the source of acetaldehyde.
5 The emulsions as referred herein are the emulsions formed between hydrocarbon and
caustic, which hamper hydrocarbon and caustic separation process. The presently
provided additive composition has technical advantage of not only lowering the
polymerization, i.e. polymer formation, but also reducing or almost eliminating tendency
to form emulsion, and if the emulsion is formed, then tendency to break emulsion formed
10 between hydrocarbon and caustic.
EXAMPLES:
The present additive composition may be prepared in any manner, and may be used in
any manner for inhibiting polymerization and simultaneously breaking emulsions formed
between hydrocarbon and caustic.
15 In accordance with one of the embodiments of the present invention, 6-amino hexanoic
acid used in the present examples may be prepared by any method known in the art
including, but not limited to the methods described in examples 3, 4 or 10 of the US
Patent No. US 6,986,839 B2 (US839), and sodium borohydride (NaBH4) used in the
present examples is as commercially available.
20 For experimental results, a reference may be drawn to the experimental data presented in
the following tables: Table – I and Table - II, which are not intended to limit the scope of
the present invention.
In the present examples, the polymer control is measured by toluene soluble readings, and
emulsion breaking tendency is measured by time taken for the toluene and caustic phase
25 to separate. It may be noted that tighter the emulsion more time it will take to break the
emulsion, and higher the tendency to form an emulsion longer the time to break.
As can be observed from the accompanying experimental results, the prior art additive:
NaBH4 takes a shorter time for toluene (a hydrocarbon) and caustic phase to separate, but
the amount of the polymer formed is higher, therefore, it is not a preferred choice of the
30 industry.
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As can also be observed from the accompanying experimental results, the prior art
additive: 6-amino hexanoic acid takes a longer time for toluene (a hydrocarbon) and
caustic phase to separate, therefore, it is also not a preferred choice of the industry.
As can also be observed from the accompanying experimental results, the comparative
5 additive compositions comprising: (a) 6-amino hexanoic acid and (b) hydroxylamine
chloride, or sodium dithionite, or ethylene diamine, take a longer time for toluene (a
hydrocarbon) and caustic phase to separate, therefore, these are also not a preferred
choice of the industry.
However, the present invention composition comprising: (a) 6-amino hexanoic acid and
10 (b) NaBH4 takes a shorter time for toluene (a hydrocarbon) and caustic phase to separate,
and the amount of the polymer formed is also lower, therefore, it is a preferred choice of
the industry.
----------------------- X --------------------------
Continued ....
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Table - I
Amount of
Additive or
Composition [in
ml (g)
% Toluene Soluble (Time to break emulsion after Toluene Extraction)
Alkaline solution
of
42% 6-amino
hexanoic acid and
14% NaOH
[Product A]
NaBH4 (12%
solution)
98.5% of
Product A and
1.5% of NaBH4
98% of Product A
and 2% of NaBH4
Prior art additive Prior art additive Invention
Composition
Invention
Composition
Blank 0.48
(Immediate)
0.25 ml (0.29 g) 0.14 (4 min) 0.32 (<1 min) 0.17 (2 min) 0.2 (Immediate)
0.30 ml (0.34 g) 0.14 (5 min) 0.29 (<1 min) 0.12 (2 min) 0.13 (1 min)
0.35 ml (0.40 g) 0.09 (7 min) 0.19 (<1 min) 0.09 (3 min) 0.09 (3 min)
0.40 ml (0.46 g) 0.08 (12 min) 0.15 (<1 min) 0.07 (5 min) 0.07 (4 min)
0.50 ml (0.57 g) 0.05 (14 min) 0.12 (<1 min) 0.06 (6 min) 0.07 (4 min)
Contd. …….
Dorf2790IN
18
Table - II
Amount of
Additive or
Composition
[in ml (g])
% Toluene Soluble (Time to break emulsion after Toluene Extraction)
98.5% of
Product A and
1.5% of
Hydroxylamine
Chloride
98% of
Product A and
2% of
Hydroxylamine
Chloride
98.5% of
Product A
and 1.5% of
Sod.
Dithionite
98% of
Product A
and 2% of
Sod.
Dithionite
98.5% of
Product A
and 1.5% of
EDA
98% of
Product A
and 2% of
EDA
Comparative
Composition
Comparative
Composition
Comparative
Composition
Comparative
Composition
Comparative
Composition
Comparative
Composition
0.25 ml
(0.29 g) 0.2 (3 min) 0.2 (2 min) 0.16 (2 min) 0.025 (6 min) 0.17 (2 min) 0.18 (2 min)
0.30 ml
(0.34 g) 0.14 (5 min) 0.14 (4 min) 0.15 (3 min) 0.024 (8 min) 0.17 (3 min) 0.21 (3 min)
0.35 ml
(0.40 g) 0.14 (6 min) 0.09 (11 min) 0.1 (4 min) 0.027 (30
min) 0.12 (5 min) 0.15 (9 min)
0.40 ml
(0.46 g) 0.1 (10 min) 0.08 (13 min) 0.1 (11 min) 0.025 (33
min) 0.14 (9 min) 0.17 (15
min)
0.50 ml
(0.57 g) 0.07 (22 min) 0.07 (36 min) 0.07 (14
min)
0.021 (45
min) 0.1 (24 min) 0.11 (18
min)
Sod. Dithionite is Sodium Dithionite, and EDA is Ethylene diamine.
************XXXX***********
Dorf2790IN
19
Clean Version
Claims Amended under Rule 20(1)
with Amendments marked on Claims amended under Article 34 of the PCT
WE CLAIM:
1. An additive composition for breaking emulsion, and simultaneously inhibiting and
controlling polymerization of a polymerizable material, wherein the composition
comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The additive composition as claimed in claim 1, wherein the polymerizable material
is selected from a material having tendency to get polymerized on heating, on
condensation, or on cracking.
3. The additive composition as claimed in claim 1 or 2, wherein the polymerizable
material is a polymer formed on aldol condensation, preferably on aldol condensation
of acetaldehyde.
4. The additive composition as claimed in any one of the preceding claims 1 to 3,
wherein the ammonium salt of borohydride is selected from the group comprising:
tetramethylammonium borohydride, and tetraethylammonium borohydride.
5. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
Dorf2790IN
20
6. The method as claimed in claim 5, wherein the amino hexanoic acid and the
borohydride are preferably added in a one step process as a blend or a mixture in the
polymerizabale material.
7. The method as claimed in claim 5 or 6, wherein the emulsion is formed between a
hydrocarbon and caustic.
8. The method as claimed in any one of the preceding claims 5 to 7, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
9. The method as claimed in any one of the preceding claims 5 to 8, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
Dated this 20th day of July 2023.
E-Signed and E-Filed
[Dr. Ramesh Kumar MEHTA]
Patent Attorney for the Applicants
[Regn. No. - IN/PA-267]
Of Mehta & Mehta Associates
Dorf2790IN
19
Marked Version
Claims Amended under Rule 20(1)
with Amendments marked on Claims amended under Article 34 of the PCT
WE CLAIM:
1. An additive composition for breaking emulsion, and simultaneously inhibiting and
controlling polymerization of a polymerizable material, wherein the composition
comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The additive composition as claimed in claim 1, wherein the amino hexanoic acid is
preferably 6-amino hexanoic acid.
3. The additive composition as claimed in claim 1 or 2, wherein the borohydride is
preferably sodium borohydride (NaBH4).
42. The additive composition as claimed in any one of the preceding claims 1 to 3,
wherein the polymerizable material is selected from a material having tendency to get
polymerized on heating, on condensation, or on cracking.
53. The additive composition as claimed in any one of the preceding claims 1 to 4 or 2,
wherein the polymerizable material is a polymer formed on aldol condensation,
preferably on aldol condensation of acetaldehyde.
64. The additive composition as claimed in any one of the preceding claims 1 to 5 3,
wherein the ammonium salt of borohydride is selected from the group comprising:
tetramethylammonium borohydride, and tetraethylammonium borohydride.
75. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
Dorf2790IN
20
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
106. The method as claimed in any one of the preceding claims 7 to 9 5, wherein the
amino hexanoic acid and the borohydride are preferably added in a one step process as
a blend or a mixture in the polymerizabale material.
117. The method as claimed in any one of the preceding claims 7 to 10 5 or 6, wherein the
emulsion is formed between a hydrocarbon and caustic.
128. The method as claimed in any one of the preceding claims 5 to 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
139. The method as claimed in any one of the preceding claims 5 to 8 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the use
comprises a step of adding the additive composition to the polymerizable material,
wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
Dorf2790IN
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15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
Dorf2790IN
22
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
Dated this 20th day of July 2023.
E-Signed and E-Filed
[Dr. Ramesh Kumar MEHTA]
Patent Attorney for the Applicants
[Regn. No. - IN/PA-267]
Of Mehta & Mehta Associates
Dorf2790IN
19
Clean Version
Claims amended under Article 34 of the PCT
(Amendments on Original Claims 1 to 30)
We Claim:
1. An additive composition for breaking emulsion, and simultaneously inhibiting and
controlling polymerization of a polymerizable material, wherein the composition
comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The additive composition as claimed in claim 1, wherein the amino hexanoic acid is
preferably 6-amino hexanoic acid.
3. The additive composition as claimed in claim 1 or 2, wherein the borohydride is
preferably sodium borohydride (NaBH4).
4. The additive composition as claimed in any one of the preceding claims 1 to 3,
wherein the polymerizable material is selected from a material having tendency to get
polymerized on heating, on condensation, or on cracking.
5. The additive composition as claimed in any one of the preceding claims 1 to 4,
wherein the polymerizable material is a polymer formed on aldol condensation,
preferably on aldol condensation of acetaldehyde.
6. The additive composition as claimed in any one of the preceding claims 1 to 5,
wherein the ammonium salt of borohydride is selected from the group comprising:
tetramethylammonium borohydride, and tetraethylammonium borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
Dorf2790IN
20
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The method as claimed in any one of the preceding claims 7 to 9, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the use
comprises a step of adding the additive composition to the polymerizable material,
wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
Dorf2790IN
21
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
Dorf2790IN
22
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
Dated this 20th day of July 2023.
E-Signed and E-Filed
[Dr. Ramesh Kumar MEHTA]
Patent Attorney for the Applicants
[Regn. No. - IN/PA-267]
Of Mehta & Mehta Associates
Dorf2790IN
19
Marked Version
Claims amended under Article 34 of the PCT
(Amendments on Original Claims 1 to 30)
We Claim:
1. An emulsion breaking additive composition for breaking emulsion, and
simultaneously inhibiting and controlling polymerization of a polymerizable material,
wherein the composition comprisescomprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The emulsion breaking additive composition as claimed in claim 1, wherein the
amino hexanoic acid is preferably 6-amino hexanoic acid.
3. The emulsion breaking additive composition as claimed in claim 1 or 2, wherein the
borohydride is preferably sodium borohydride (NaBH4).
4. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 3, wherein the polymerizable material is selected from a material having
tendency to get polymerized on heating, on condensation, or on cracking.
5. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 4, wherein the polymerizable material is a polymer formed on aldol
condensation, preferably on aldol condensation of acetaldehyde.
6. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 5, wherein the ammonium salt of borohydride is selected from the group
comprising: tetramethylammonium borohydride, and tetraethylammonium
borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
Dorf2790IN
20
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The use method as claimed in any one of the preceding claims 7 to 9, wherein the
amino hexanoic acid and the borohydride are preferably added in a one step process as
a blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the
method use comprises a step of adding the additive composition to the polymerizable
material, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
Dorf2790IN
21
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
Dorf2790IN
22
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.Original Claims
We Claim:
1. An emulsion breaking additive composition comprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The emulsion breaking additive composition as claimed in claim 1, wherein the
amino hexanoic acid is preferably 6-amino hexanoic acid.
3. The emulsion breaking additive composition as claimed in claim 1 or 2, wherein the
borohydride is preferably sodium borohydride (NaBH4).
4. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 3, wherein the polymerizable material is selected from a material having
tendency to get polymerized on heating, on condensation, or on cracking.
5. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 4, wherein the polymerizable material is a polymer formed on aldol
condensation, preferably on aldol condensation of acetaldehyde.
6. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 5, wherein the ammonium salt of borohydride is selected from the group
comprising: tetramethylammonium borohydride, and tetraethylammonium
borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
Dorf2790IN
20
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The use as claimed in any one of the preceding claims 7 to 9, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the
method comprise a step of adding the additive composition to the polymerizable
material, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
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17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
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27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.Original Claims
We Claim:
1. An emulsion breaking additive composition comprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The emulsion breaking additive composition as claimed in claim 1, wherein the
amino hexanoic acid is preferably 6-amino hexanoic acid.
3. The emulsion breaking additive composition as claimed in claim 1 or 2, wherein the
borohydride is preferably sodium borohydride (NaBH4).
4. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 3, wherein the polymerizable material is selected from a material having
tendency to get polymerized on heating, on condensation, or on cracking.
5. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 4, wherein the polymerizable material is a polymer formed on aldol
condensation, preferably on aldol condensation of acetaldehyde.
6. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 5, wherein the ammonium salt of borohydride is selected from the group
comprising: tetramethylammonium borohydride, and tetraethylammonium
borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
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(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The use as claimed in any one of the preceding claims 7 to 9, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the
method comprise a step of adding the additive composition to the polymerizable
material, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
Dorf2790IN
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17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
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27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.Original Claims
We Claim:
1. An emulsion breaking additive composition comprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The emulsion breaking additive composition as claimed in claim 1, wherein the
amino hexanoic acid is preferably 6-amino hexanoic acid.
3. The emulsion breaking additive composition as claimed in claim 1 or 2, wherein the
borohydride is preferably sodium borohydride (NaBH4).
4. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 3, wherein the polymerizable material is selected from a material having
tendency to get polymerized on heating, on condensation, or on cracking.
5. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 4, wherein the polymerizable material is a polymer formed on aldol
condensation, preferably on aldol condensation of acetaldehyde.
6. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 5, wherein the ammonium salt of borohydride is selected from the group
comprising: tetramethylammonium borohydride, and tetraethylammonium
borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
Dorf2790IN
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(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The use as claimed in any one of the preceding claims 7 to 9, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the
method comprise a step of adding the additive composition to the polymerizable
material, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
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17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
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27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
Original Claims
We Claim:
1. An emulsion breaking additive composition comprising:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic
acid, an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic
acid, or a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride,
potassium borohydride, lithium borohydride, ammonium salt of borohydride,
sodium triisopropoxy borohydride, or a mixture thereof [compound-B].
2. The emulsion breaking additive composition as claimed in claim 1, wherein the
amino hexanoic acid is preferably 6-amino hexanoic acid.
3. The emulsion breaking additive composition as claimed in claim 1 or 2, wherein the
borohydride is preferably sodium borohydride (NaBH4).
4. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 3, wherein the polymerizable material is selected from a material having
tendency to get polymerized on heating, on condensation, or on cracking.
5. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 4, wherein the polymerizable material is a polymer formed on aldol
condensation, preferably on aldol condensation of acetaldehyde.
6. The emulsion breaking additive composition as claimed in any one of the preceding
claims 1 to 5, wherein the ammonium salt of borohydride is selected from the group
comprising: tetramethylammonium borohydride, and tetraethylammonium
borohydride.
7. A method for breaking emulsion, and simultaneously inhibiting and controlling
polymerization of a polymerizable material, wherein the method comprise a step of
treating the polymerizable material with an additive composition, wherein the additive
composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
Dorf2790IN
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(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B];
8. The method as claimed in claim 7, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
9. The method as claimed in claim 7 or 8, wherein the borohydride is preferably sodium
borohydride (NaBH4).
10. The use as claimed in any one of the preceding claims 7 to 9, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
11. The method as claimed in any one of the preceding claims 7 to 10, wherein the
emulsion is formed between a hydrocarbon and caustic.
12. The method as claimed in any one of the preceding claims 7 to 11, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
13. The method as claimed in any one of the preceding claims 7 to 12, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
14. Use of an additive composition for breaking the emulsion, and simultaneously for
inhibiting and controlling polymerization of a polymerizable material, wherein the
method comprise a step of adding the additive composition to the polymerizable
material, wherein the additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
15. The use as claimed in claim 14, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
16. The use as claimed in claim 14 or 15, wherein the borohydride is preferably sodium
borohydride (NaBH4).
Dorf2790IN
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17. The use as claimed in any one of the preceding claims 14 to 16, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.
18. The use as claimed in any one of the preceding claims 14 to 17, wherein the emulsion
is formed between a hydrocarbon and caustic.
19. The use as claimed in any one of the preceding claims 14 to 18, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
20. The use as claimed in any one of the preceding claims 14 to 19, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
21. Use of an additive composition for preventing fouling, wherein the method comprises
a step of adding the additive composition to the polymerizable material, wherein the
additive composition comprises:
(a) amino hexanoic acid selected from the group comprising: 6-amino hexanoic acid,
an acid salt of 6-amino hexanoic acid, a sodium salt of 6-amino hexanoic acid, or
a mixture thereof [compound-A]; and
(b) borohydride selected from the group comprising: sodium borohydride, potassium
borohydride, lithium borohydride, ammonium salt of borohydride, sodium
triisopropoxy borohydride, or a mixture thereof [compound-B].
22. The use as claimed in claim 21, wherein the amino hexanoic acid is preferably 6-
amino hexanoic acid.
23. The use as claimed in claim 21 or 22, wherein the borohydride is preferably sodium
borohydride (NaBH4).
24. The use as claimed in any one of the preceding claims 21 to 23, wherein the emulsion
is formed between a hydrocarbon and caustic.
25. The use as claimed in any one of the preceding claims 21 to 24, wherein the
polymerizable material is selected from a material having tendency to get polymerized
on heating, on condensation, or on cracking.
26. The use as claimed in any one of the preceding claims 21 to 25, wherein the
polymerizable material is a polymer formed on aldol condensation, preferably on
aldol condensation of acetaldehyde.
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27. The use as claimed in any one of the preceding claims 21 to 26, wherein the fouling is
formed by polymerization of a polymerizable material in a basic solution.
28. The use as claimed in claim 27, wherein the basic solution is in contact with a
gaseous stream or a liquid hydrocarbon stream.
29. The use as claimed in claim 28, wherein the gaseous stream and the liquid
hydrocarbon stream is an effluent from a hydrocarbon cracking operation.
30. The use as claimed in any one of the preceding claims 21 to 29, wherein the amino
hexanoic acid and the borohydride are preferably added in a one step process as a
blend or a mixture in the polymerizabale material.