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The present invention dicloses an adsorbent for selective adsorption of unsaturated hydrocarbons from its mixture with saturated hydrocarbons, carbon dioxide, carbon monoxide, permanent gases or mixture thereof comprising of silver or copper compound 1 to 70 wt % and substrate 30 to 99%. The invention also discloses...

The present invention discloses an adsorbent for selective adsorption of unsaturated hydrocarbons from its mixture with saturated hydrocarbons, carbon dioxide, carbon monoxide, permanent gases or mixture thereof comprising of silver or copper compound 1 to 70 wt % and substrate 30 to 99%. The invention also disclose...

New hindered liquid phenolic antioxidants were prepared by reacitng a suitable phenol with C12 C18 alpha olefins. Specifically 2, 6-Didodeeyl-4-methyl phenol (AO12), 2,6-diocatadecyl-4-,methyl phen ol (AQ18) were prepared from p-cresol and I-dodecene and I-octadecene respectively. These hindered phenols containing C...

The present invention relates to a process for the manufacture of an improved gallo-aluminoslicate zeolite catalyst. The process comprises forming an aqueous gel of a compound of aluminium and gallium, an alkali or alkaline earth metal, a compound of silicon and an alkylammonium cation, subjecting such gel to a temp...

The present invention provides a process for the preparation of a novel dehydrogenation catalyst useful for the production of unsaturated hydrocarbons from saturated hydrocarbons,by incorporating active elements comprising a noble metal, a metal of Group IV A,a metal of Group III A,a rare earth,an alkali or alkaline...

A Flame retardant composition and a process for the preparation thereof is disclosed. The blends of the invention are prepared by melt-mixing (I) a base polymer which is a polyolefin polymer or a blend of two polyolefin polymers (ii) melamine or its derivative such as melamine cyanurate or melamine phosphate (iii) a...

An oxidation catalyst for the purification of nitrogen gas containing organic impurities. The catalyst comprises sulphated alumina with a sulphate loading of 1-20 percent weight alumina. The sulphated alumina is impregnated with an aqueous solution of a noble metal complex formed with a complexing agent. The noble m...

An adsorbent for removing impurities such as CO₂, H₂S and water vapors from a gaseous olefin stream of at least C₂ to C4 olefins is disclosed. The adsorbent comprises of zeolite CaA molecular sieve modified with metal silicate.

The present invention relates to a spherical catalyst support consisting of a thin annular shell of catalytically active material in gamma alumina formed in-situ on and bonded to a non-active inert core. The catalytic support is prepared by wetting an inert non-active core with colloidal aluminum sol, spraying a boe...

The present invention discloses exfoliated nanoclays and a process for preparation thereof from ordinary layered smectic clays [such as bentonite mineral clay from Gujarat]. The procedure by which exfoliation occurs in clay is by insertion of intercalants (chemicals/swelling agents/solvents/monomers/polymers). These...

A thermoplastic polyolefin alloy having high (notched) Izod impact strenght and process for it preparation are disclosed. The alloys of this invention comprises of a polypropylene block copolymer as a base polymer, an elastomer, a compatibilizer, and optionally a natural filler and is prepared by melt blending a twi...

The present invention relates to a spherical catalyst support consisting of a thin annular shellof catalytically active material in gamma alumina formed in-situ on and bonded to a non-active inert core. The catalytic support is prepared by wetting an inert non-active core with colloidal aluminum sol, spraying a bohe...

A process for the preparation of synthetic oil, which comprises subjecting a mixture of C6-C8 olefins substrate to oligomerisation, wherein the moisture content of said C6-C8 olefins substrate is less than 200 ppm and said oligomerisation is carried out in the presence of a catalyst system comprising anhydrous AiCi3...

A process for the preparation of a novel dehydrogenation catalyst, which comprising incorporating active elements comprising. i. from 0.1 to 5.0% by weight of a noble metal. ii. from 0.1 to 5% by weight of a metal of Group IV A iii. from 0.1 to 6% by weight of a metal of Group III A iv. from 0.1 to 1% by weight ...

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A process for the polymerisation of olefinic monomers is disclosed. The process comprises contacting said monomers with a non-metallocene transition metal compound catalyst at ambient or slightly elevated temperature, preferably, in the presence of a cocatalyst.

An adsorbent for removing impurities such as CO2, H2S and water vapors from a gaseous olefin stream of at least C2 to C3 olefins is disclosed. The absorbent comprises of zeolite CaA molecular sieve modified with metal silicate.

A catalytic process for the preparation of methylene bridged aromatic polyamines through condensation of aromatic amine and formaldehyde, said process comprsising contacting the aromatic amine and formaldehyde with a catalyst selected from the group consisting of zeolites, mesoporous molecular sieves, alumin...

A process for preparing a catalyst composite comprising of a mixture 6f amorphoussilica, alumina and a pore size controlled metallosilicate, useful for alkylaromaticconversion, the said process comprising:a) contacting an intermediate pore metallosilicate with an organosilicon compound in a...

The present invention relates to a process for the selective production of para-diethyl benzene from a mixed aromatic feedstock containing ethyl benzene and at least one other aromatic compound selected from benzene, alkylated benzene having alkyl group with carbon number 1 to 6, mono-alkyl aromatics, dialky...

An active ternary catalyst system for dimerization of ethylene comprising a transition metal salt, an oxygenated compound and a phosphorous modifier. The molar ratios of the transition metal salt to the oxygenated compound to the phosphorous modifier are 1:2 to 1:4 and 1:0.05 to 1:1, respectively.Also a proc...