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Chabazite Type Zeolite For Substrate Coating

Abstract: The purpose of the present invention is to provide a chabazite type zeolite which is not easily separated from a substrate coated therewith even if the substrate is a honeycomb body or the like, while exhibiting excellent durability. The present invention relates to a chabazite type zeolite for substrate coating, which satisfies the following requirements (i) to (iv). (i) The chabazite type zeolite contains Si and Al. (ii) The chabazite type zeolite has an SiO2/Al2O3 molar ratio within the range of 5 < SiO2/Al2O3 < 10. (iii) The average crystal size of the chabazite type zeolite is within the range of 0.05 μm < (average crystal size) < 1 μm. (iv) In the spectrum as measured by 27Al-NMR, the ratio of the area (ANFA) of peaks ascribed to Al other than 4-coordinated Al to the area (ATotal) of all the peaks in the spectrum, namely (ANFA/ATotal) is within the range of 20% ≤ (ANFA/ATotal) ≤ 70%.

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Patent Information

Application #
Filing Date
20 May 2019
Publication Number
34/2019
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
iprdel@lakshmisri.com
Parent Application
Patent Number
Legal Status
Grant Date
2020-10-14
Renewal Date

Applicants

JGC CATALYSTS AND CHEMICALS LTD.
580, Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 2120013

Inventors

1. YAMAGUCHI, Yoko
c/o Kitakyushu Operation Center, JGC CATALYSTS AND CHEMICALS LTD., 13-2, Kitaminato-machi, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 8080027
2. TSURUTA, Shunji
c/o Kitakyushu Operation Center, JGC CATALYSTS AND CHEMICALS LTD., 13-2, Kitaminato-machi, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 8080027
3. NAKASHIMA, Akira
c/o Kitakyushu Operation Center, JGC CATALYSTS AND CHEMICALS LTD., 13-2, Kitaminato-machi, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 8080027

Specification

0001] The present invention may be coated on a substrate such as a honeycomb, peeling hardly relates chabazite-type zeolite and a manufacturing method thereof which exhibits excellent durability.BACKGROUND[0002] Zeolite is a generic name for aluminosilicate having a relatively large voids in the crystal structure, has a basic skeleton consisting of silicon dioxide, a portion of the silicon is replaced by aluminum negatively charged, the micropores charge balance by cations, such as alkali metal contained has a retained structure. Zeolites are typically general formula xM 2 O · YAL 2 O 3 · ZSiO 2 · nH 2 (the M cation metals such as alkali metals) O indicated by a variety depending on the kind of cation contained in the crystal It has a property. [0003]  The crystal structure of the zeolite is classified based on the structure encoded by the International Zeolite Association, faujasite, mordenite, it is known that a plurality of crystal structures exist such chabazite. (Also referred to as chabazite structure.) Is one chabazite crystal structure of the zeolite has a three-dimensional pore structure consisting of oxygen 8-membered ring, effectively acts in a variety of applications such as catalysts and adsorbents . The zeolite having the chabazite structure referred to as type zeolite. [0004]  Patent Document 1, chabazite-type zeolite, the separation of the gas, the selective reduction of nitrogen oxides contained in the exhaust gas of an automobile, conversion to liquid fuels oxygen-containing hydrocarbon such as a lower alcohol, the production of dimethylamine It discloses that use such as catalysts and separation membranes for. [0005]  When using a chabazite-type zeolite as an active component of the catalyst for purifying automobile exhaust gas, normally, chabazite-type zeolite is coated with an inorganic binder component to a substrate such as a honeycomb dip coating or washcoat, etc. (e.g., silica sol, alumina sol, etc.) that. Catalysts for automobile exhaust gas purification, high space velocity (SV = 10,000 ~ 100,000 -1 because circulating the substrate of the exhaust gas in order), the intensity of the coating layer containing the active ingredient is not sufficient, the coating layer peeled off. When the coating layer is peeled off, due to the reduced active ingredient, the catalyst activity is reduced as a result. Therefore, chabazite-type zeolite used as the active component of the catalyst for automobile exhaust gas purification, which hardly peeled off from the substrate is required. [0006]  Patent Documents 2 and 3, although the chabazite-type zeolite used as the active component of the catalyst for purifying automobile exhaust gas are disclosed, these catalysts for automobile exhaust gas purification coated with chabazite-type zeolite, chabazite from the substrate type zeolite is easily peeled, there is a problem that the durability is not sufficient. CITATION Patent Document [0007] Patent Document 1: U.S. Patent No. 6,709,644 Patent Document 2: Patent No. 5499042 Patent Publication Patent Document 3: Japanese Patent No. 5683111 Summary of the Invention Problems that the Invention is to Solve [0008]  The present invention has solved the above problems by type zeolite containing Al present outside of chabazite structure, it is coated on a substrate such as a honeycomb to provide a peeling hardly chabazite-type zeolite. Means for Solving the Problems [0009]  The present invention relates to type zeolite which has solved the above problems by the following construction. [1] below (a) to type zeolite for substrate coating having a (D). (B) Si, contain Al, (b) SiO 2 / Al 2 O 3 molar ratio, 5  Examples of the present invention will hereinafter together with comparative examples. The present invention is not limited to these examples. The determination method of chabazite structure, method of measuring the composition, methods evaluation of crystallinity, the measurement method of the average crystal size, SiO 2 / Al 2 O 3 measuring method molar ratio, measuring method of average crystal size, standard particle size distribution deviation measuring method, showing the outer surface area measurement method, method of measuring the ratio of Al other than NFA and NFA, the measuring method of the specific surface area, and the release rate measurement method below. [0054]  Manufacturing zeolites, conducted under the following conditions X-ray diffraction measurement, it is determined whether the chabazite structure. device: MiniFlex (manufactured by Rigaku Corporation) operating shaft: 2 [Theta] / theta -ray source: CuKa Measuring method: Continuous Voltage: 40 kV Current: 15 mA start angle: 2 [Theta] = 5 ° end angle: 2 [Theta] = 50 ° sampling width: 0.020 ° scanning speed: 10.000 ° / min  X-ray diffraction pattern obtained by the above measurement, (100), (200), (20-1), (21-1 ), (211), (3-1-1), (310), if it has all the peaks attributed to Miller index (3-1-2), a chabazite structure (CHA) it is determined that there.  The peak position of each peak may include a respective 2 [Theta] = error of about ± 0.2 °. [0055]  manufacturing zeolite, Si, the content of Al, was measured under the following conditions. The content of each component was calculated as% by mass in terms of oxide. Further, the content of each component in terms of molar ratio, SiO 2 / Al 2 O 3 was calculated molar ratio. Measurement method: ICP emission spectrometry apparatus: ICP730-ES (Ltd. VARIAN) Sample dissolved: acid dissolution [0056]  International Zeolite Association homepage (http://www.iza-online.org · synthesis /) or, "WERIFIED SYNTHESES OF ZEOLITIC MATERIALS" H. Robson ed, K. P. Lillerud XRD diagram: Issue 2001, second edition, was synthesized standards based on synthesis of chabazite to that described in page 123, second page 125 (chabazite).  The zeolite produced with this standard, X-ray diffraction measurement was carried out under the following conditions. From each X-ray diffraction pattern obtained on the basis of the following calculation formula, it obtained zeolite crystalline (relative crystallinity). device: MiniFlex (manufactured by Rigaku Corporation) operating shaft: 2 [Theta] / theta -ray source: CuKa Measuring method: Continuous Voltage: 40 kV Current: 15 mA start angle: 2 [Theta] = 5 ° end angle: 2 [Theta] = 50 ° sampling width: 0.020 ° scanning speed: 10.000 ° / min  From X-ray diffraction pattern obtained by the X-ray diffraction measurement, the Miller index (100), (20-1), to find the total value of the height of each peak attributed to (3-1-1), the following It was determined relative crystallinity by formula. Relative crystallinity [%] = H / H R × 100 H: the total height of each peak of the zeolite obtained in Example H R : Sum of each peak heights of the standard substance [0057]  Manufacturing zeolite were measured average crystal size in the following manner. Average crystal size measurement conditions]  The manufacturing zeolite was subjected to electron microscopic observation under the following conditions. Incidentally, the magnification if the magnification size of the primary particles can be confirmed, may not necessarily under the following conditions. From the obtained image was measured an average crystal size.  measuring apparatus JEOL JEOL JSM-7600  accelerating voltage 1.0kV  magnification of 20,000 times randomly extracts ten primary particles from an electron microscope image, the primary that the average value of the long diameter of the particles was the size of the primary particles. [0058]  Manufacturing zeolite, subjected to particle size distribution measurement under the following conditions to calculate the standard deviation.  Measurement apparatus HORIBA LA950V2  dispersants sodium hexametaphosphate aqueous  refractive index 1.465 standard deviation, based on the data obtained in the particle size distribution measurement, Shimadzu Corporation homepage (http: // www. It was calculated using the particle size distribution the standard deviation calculation method an.shimadzu.co.jp). Following a specific calculation methods.  particle size range to be measured (maximum particle diameter: x 1 , minimum particle size: x n + 1 ) and the n split, between each particle size range, [x j , x j + 1 ] (j = 1, 2, · · · · N) to (divided in this case equally divided on a logarithmic scale). The representative particle diameter among each particle size range on the basis of the logarithmic scale is calculated by the following equation. [Equation 1]  In addition the inter particle size range [x j , x j + 1 ] relative particle amount corresponding to (difference%) q j (J = 1,2, ···· n) and the sum of all intervals is set to 100%. The mean value μ on a logarithmic scale is calculated by the following formula. [Number 2]  on the basis of the mu, standard deviation defined on a logarithmic scale (sigma) was calculated by the following equation. [Number 3] [0059]  The obtained zeolite was measured external surface area under the following conditions.  Measurement method: Nitrogen adsorption method  measuring device: BEL SORP-miniII (manufactured by BEL Japan, Inc.)  Sample amount: about 0.05g  Pretreatment: 300 ° C., 2 hours (under vacuum)  relative pressure range: 0 to 1.0  calculation method the total pore volume: 0.990        specific surface area, external surface area: t-plot method [0060]  Manufacturing zeolites, under the following conditions 27 were Al-NMR measurement. From the spectrum obtained by the measurement was calculated the ratio of the NFA in the total Al contained in the zeolite. < 27 Al-NMR measurement conditions>  Measurement apparatus: Agilent Co. VNMR-600  was charged to be uniform in the sample tube for NMR solid powder samples of diameter 3.2 mm, 14.1 T NMR apparatus (Agilent Co. NMR- 600,1H resonance frequency: set to 600 MHz), rotated at 20kHz high speed at the magic angle to the external magnetic field (54.7 °). In this case 27 Al resonance frequency was 156.3MHz. 27 as a chemical shift standard of Al-NMR, Al (NO of 1 mol / l 3 ) 3 was an aqueous solution peak with 0 ppm. Using a single pulse method for the measurement was set to the flip angle of the pulses 10 °, the pulse repetition time 0.1s.  The resulting spectrum is approximated by Voigt function was peak separation. The peak chemical shift is expressed in the vicinity of 50 ~ 60 ppm and the area (A as Al other than NFA Total calculates) the total of the area of the other peaks as Al other than NFA (A Total) Was calculated, to calculate the ratio of the NFA in the total Al contained in the zeolite from the following equation. The ratio of the NFA in the total Al contained in the Zeolite A = NFA / A total × 100 [%] [0061]  Manufacturing zeolite was subjected to specific surface area measured under the following conditions.  Zeolite 10 g, the aqueous solution 100g containing ammonium sulfate 5g heated to 60 ° C., stirred for 1 hour ion-exchange with, then filtered and washed. This operation was carried out twice. The zeolite obtained by the above method was subjected to measurement of the specific surface area under the following conditions. Measurement method: Nitrogen adsorption method (BET multipoint method) measuring apparatus: BELSORP-miniII (manufactured by Microtrac Bell Ltd.) Pretreatment: 300 ° C., 2 hours (under nitrogen flow) sample mass: 0.05 g [0062]  The zeolite obtained in Example, performed peel test under the following conditions to calculate the peeling rate.  Alumina hydrate particulate powder is produced zeolite powder 100g and an inorganic binder component (JGC Catalysts and Chemicals Ltd.: AP-1, Al 2 O 3 content of 72 weight%, average particle size 200 nm) 15 g and mixing the pure water 200 g, mixing under stirring for 3 hours to obtain a slurry subjected to homogenization. Then, by immersing the ceramic honeycomb substrate made of cordierite to the slurry, the method of pulling up (wash coating), uniform catalyst layer coated to the substrate so as to coat the density of the catalyst is 100 g / L of It was formed. Then, after drying for 12 hours at 0.99 ° C. under air, and calcined 3 hours at 600 ° C., to obtain a honeycomb substrate. The obtained honeycomb substrate was performed peel test under the following conditions. Equipment: shaker (manufactured by IWAKI) Shaking number: 300Spm weight of the honeycomb substrate (M 0 after a) measured was filled into a measuring cylinder and shaken for 15 minutes. Then, the honeycomb substrate was taken out, the weight (M A was measured). Weight shaking before the honeycomb substrate (M 0 ) and shaking peeling rate than the weight before and after using the following equation (%) was calculated. Peeling rate (%) = (M 0-M A)/M 0×100 [0063] Example 1 [FAU Preparation Step]  Al 2 O 3 concentration of 22 wt%, Na 2 O concentration 17 wt% aqueous sodium 0.168kg aluminate, NaOH concentration 21.65% by weight aqueous sodium hydroxide 1. It added and dissolved with stirring to 35 kg, and cooled to 30 ° C.. While stirring the solution, SiO 2 concentration of 24 wt%, Na 2 were added to the O concentration 7.7 wt% aqueous solution of sodium silicate 1.361Kg. The composition of the solution at this time was as follows in mole ratios of oxides in terms. It was then prepared aluminosilicate solution the solution 15 hours standing to at 30 ° C. The.  Na 2 O / Al 2 O  3 = 16 SiO 2 / Al  2 O 3 = 15 H 2 O / Al 2 O 3=330 [0064]  SiO 2 concentration of 24 wt%, Na 2 O concentration of 7.7% by weight of water 5.66kg sodium silicate solution 22.78kg and SiO 2 concentration of 30 wt% silica sol (JGC Catalysts and Chemicals Ltd.: Cataloid SI-30: average particle and diameter 10nm) 18.97kg, the aluminosilicate solution 2.88kg was added and stirred for mixing. This, Al 2 O 3 concentration of 22 wt%, Na 2 O-concentration of 17 wt% aqueous sodium 10.03kg aluminate added and aged for 3 hours at room temperature, the mixture hydrogel slurry was prepared. Composition of the mixed hydrogel slurry at this time was as follows in mole ratios of oxides in terms. Na 2 O / Al 2 O 3 = 2.80 SiO 2 / Al 2 O 3 = 8.70 H 2 O / Al 2 O 3=108 [0065]  The mixed hydrogel slurry 60.3kg at crystallization vessel, 35 hours at 95 ° C., and treated hydrothermally. After cooling to 70 ° C., to obtain a cake 29.5kg of Na-Y type zeolite was filtered. The resulting cake of Na-Y type zeolite, and further washed, filtered to prepare a Na-Y type zeolite was dried. [0066]  Na-Y zeolite 500 g, an aqueous solution 5000g comprising ammonium sulfate 280g was heated to 80 ° C., after stirring for 2 hours while ion exchange, filtered, washed, dried, and calcined 5 hours at 550 ° C.. Further, ion-exchanged with the above conditions, filtered, washed, the operation of the drying carried out twice, NH 4 ion exchange ratio 95% 0.95 (NH 4 ) 2 O · 0.05Na 2 O · Al 2 O 3 · 5SiO 2 (NH zeolite 4 (95) also referred to as a Y-type zeolite.) was prepared.  Then, NH 4 (95) was water adjusted to include a Y-type zeolite in water by adding water 50 wt%. NH and moisture control 4 (95) a Y-type zeolite was filled into a container, by 2 hours steaming temperature was raised to 600 ° C., to prepare a super stability FAU type zeolite. [0067]  This ultra stable FAU type zeolite 500 g, concentration 25% by weight of 825g sulfuric acid dropwise at 0.5 hours which resulted in the removal of aluminum processing, SiO 2 / Al 2 O 3 was prepared FAU type zeolite = 10.0 . [0068] [Starting slurry preparation step]  As the concentration of the FAU-type zeolite is 11 mass% was mixed with pure water 846g and FAU type zeolite 104 g. Then, "WERIFIED SYNTHESES OF ZEOLITIC MATERIALS" H. Robson ed, K. P. Lillerud XRD diagram: Issue 2001, second edition, page 123, second page 125 is described in the chabazite (chabazite) type zeolite 16g obtained by the synthesis method of (SiO 2 / Al 2 O 3 molar ratio of 4. 5) was added. Then, to obtain a raw material slurry by mixing KOH34g concentration 95.5% by weight. At this time, the molar ratio of Si and Al in the raw material slurry, SiO 2 / Al 2 O 3 in terms of, was 9.3. [0069] [Milling slurry preparation step]  The raw material slurry, bead mill (Ashizawa Finetech Ltd.: LMZ015) with, X-rays 3 peaks appearing in the diffraction pattern of the FAU contained in the raw material slurry [(111), (331) and the peak] total intensity attributed to Miller index of (533) (Ha), the total intensity of FAU contained in ground slurry (Hb) is wet-pulverized to less than half (0.5 Ha ≧ Hb) Te, to obtain a ground slurry. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume. [0070]  And the ground slurry was heat treated for 48 hours water at 0.99 ° C.. Then, take out the ground slurry was hydrothermally treated, filtered, washed and dried to obtain the zeolite. [0071]  The obtained zeolite was confirmed to be a chabazite-type zeolite by the determination method of chabazite structure described above. Furthermore, the measuring method of the composition mentioned above, the evaluation method of the crystalline, the measuring method of average crystal size, SiO 2 / Al 2 O 3 measuring method molar ratio, measuring method of average crystal size, standard deviation measuring method of the particle size distribution, external surface area measurement method, method of measuring the ratio of Al other than NFA and NFA, the measuring method of the specific surface area, and based on the measurement method of the release rate was evaluated these attributes. The results are shown in Table 1. Also shows the particle size distribution in Fig. An electron micrograph is shown in FIG. [0072] Example 2  super stability FAU type zeolite 500g prepared in Example 1, the concentration of 25% by mass of 650g sulfuric performed dropwise to dealumination treatment with 0.5 hours, SiO 2 / Al 2 O 3 = a 8.8 FAU type zeolite was prepared. [0073] [Starting slurry preparation step]  As the concentration of the FAU-type zeolite is 11 mass% was mixed with pure water 844g and FAU type zeolite 107 g. Then, chabazite-type zeolite 15g used in Example 1 (SiO 2 / Al 2 O 3 was added molar ratio 4.5). Then, to obtain a raw material slurry by mixing KOH34g concentration 95.5% by weight. At this time, the molar ratio of Si and Al in the raw material slurry, SiO 2 / Al 2 O 3 in terms of, was 8.1. [0074]  Subsequent process and evaluation was conducted in the same manner as in Example 1. The results are shown in Table 1. [0075] Example 3  The chabazite-type zeolite 50g obtained in Example 2 was suspended in copper nitrate trihydrate solution 500g of 1 mol / L to prepare a slurry. Was heated to 80 ° C. While stirring the slurry, after 1 hour the ion-exchange, filtration, and washed. Repeat this operation until the amount of supported Cu is 4 mass%, to obtain a chabazite-type zeolite carrying Cu. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0076] Example 4  a chabazite-type zeolite 50g obtained in Example 2 was suspended in iron sulfate heptahydrate solution 500g of 1 mol / L to prepare a slurry. Was heated to 80 ° C. While stirring the slurry, after 1 hour the ion-exchange, filtration, and washed. This operation was repeated until the Fe loading amount is 3 mass% to obtain a chabazite-type zeolite carrying Fe. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0077] Example 5  super stability FAU type zeolite 500g prepared in Example 1, the concentration of 25% by mass of 270g sulfuric performed dropwise to dealumination treatment with 0.5 hours, SiO 2 / Al 2 O 3 = a 6.0 FAU type zeolite was prepared. [Starting slurry preparation step]  As the concentration of the FAU-type zeolite is 11 mass% was mixed with pure water 844g and FAU type zeolite 107 g. Then, chabazite-type zeolite 15g used in Example 1 (SiO 2 / Al 2 O 3 was added molar ratio 4.5). Furthermore, to obtain a raw material slurry by mixing 34g concentration 95.5% by weight of KOH. At this time, the molar ratio of Si and Al in the raw material slurry, SiO 2 / Al 2 O 3 in terms of, was 5.8. [Milling slurry preparation step]  The raw material slurry, bead mill (Ashizawa Finetech Ltd.: LMZ015) using a mirror of the three peaks appearing in X-ray diffraction pattern of FAU contained in the raw material slurry [(111), (331) and (533) the peak] total intensity attributed to the exponent (Ha), and wet pulverized until the total intensity of FAU contained in ground slurry (Hb) is 0.6 to obtain ground slurry. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume.  And the slurry was heat treated for 48 hours water at 0.99 ° C.. Then, take out the ground slurry was hydrothermally treated, filtered, washed to obtain a chabazite-type zeolite was dried. [0078]  As the concentration of the zeolite is 11 mass% to obtain a slurry by mixing a chabazite-type zeolite 110g of pure water 890g obtained in the previous step. The slurry bead mill (Ashizawa Fine Tech Co., Ltd.: LMZ015) was pulverized using a. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume. The three peaks that appear in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry before milling [(100), (20-1) and a peak attributed to Miller index (3-1-1)] the ratio of the total intensity total intensity of the three peaks appearing in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry after grinding for (Ha) (Hb) (Hb / Ha) was 0.95. Further, filtration of the slurry after grinding, to obtain a chabazite-type zeolite was dried. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0079] Example 6  ultra stability FAU type zeolite 500g prepared in Example 1, the concentration of 25% by mass of 650g sulfuric performed dropwise to dealumination treatment with 0.5 hours, SiO 2 / Al 2 O 3 = a 9.0 FAU type zeolite was prepared. As the concentration of the FAU-type zeolite is 11 mass% was mixed with pure water 850g and FAU type zeolite 116 g. Then, the concentration of 95.5 wt% of KOH to obtain a raw material slurry with 40g mixed. At this time, the molar ratio of the raw material slurry and the Si and Al SiO 2 / Al 2 O 3 was 8.2 in terms of. Subsequent steps are performed in the same manner as in Example 5 to give the chabazite-type zeolite. [0080]  As the concentration of the zeolite is 11 mass% to obtain a slurry by mixing a chabazite-type zeolite 110g of pure water 890g obtained in the previous step. The slurry bead mill (Ashizawa Fine Tech Co., Ltd.: LMZ015) was pulverized using a. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume. The three peaks that appear in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry before milling [(100), (20-1) and a peak attributed to Miller index (3-1-1)] the ratio of the total intensity total intensity of the three peaks appearing in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry after grinding for (Ha) (Hb) (Hb / Ha), was 0.98. Further, filtration of the slurry after grinding, to obtain a chabazite-type zeolite was dried. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0081] Example 7  Ultra stability FAU type zeolite 500g prepared in Example 1, the concentration of 25% by mass of 650g sulfuric performed dropwise to dealumination treatment with 0.5 hours, SiO 2 / Al 2 O 3 = a 9.0 FAU type zeolite was prepared. As the concentration of the FAU-type zeolite is 11 mass% was mixed with pure water 850g and FAU type zeolite 116 g. Then, the concentration of 95.5 wt% of KOH to obtain a raw material slurry with 40g mixed. At this time, the molar ratio of the raw material slurry and the Si and Al SiO 2 / Al 2 O 3 was 8.2 in terms of. Subsequent steps are performed in the same manner as in Example 5 to give the chabazite-type zeolite. [0082]  As the concentration of the zeolite is 11 mass% to obtain a slurry by mixing a chabazite-type zeolite 110g of pure water 890g obtained in the previous step. The slurry bead mill (Ashizawa Fine Tech Co., Ltd.: LMZ015) was pulverized using a. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume. The three peaks that appear in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry before milling [(100), (20-1) and a peak attributed to Miller index (3-1-1)] the ratio of the total intensity total intensity of the three peaks appearing in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry after grinding for (Ha) (Hb) (Hb / Ha) was 0.95. Further, filtration of the slurry after grinding, to obtain a chabazite-type zeolite was dried. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0083] Example 8  Pure water 2752g in 25% N, N, N- trimethyl adamantane ammonium aqueous solution (manufactured by Seiko Chem Japan) and 325 g, KOH concentration 95.5% by weight of potassium hydroxide 2g, aqueous sodium aluminate (Al 2 O 3 concentration of 22 wt%, Na 2 O concentration of 17 wt%) to 178 g, was added 243g of fumed silica (manufactured by Tokuyama Corp. REOLOSIL QS40), to obtain a well mixed slurry. The raw material slurry was subjected to heat treatment for 96 hours water at 150 ℃. Then, take out the raw material slurry hydrothermal treatment, filtration, washing, obtain a chabazite-type zeolite was dried. [0084]  As the concentration of the zeolite is 11 mass% to obtain a slurry by mixing a chabazite-type zeolite 110g of pure water 890g obtained in the previous step. The slurry bead mill (Ashizawa Fine Tech Co., Ltd.: LMZ015) was pulverized using a. Conditions of the wet milling of this time, the zirconia beads 0.5 mm, peripheral speed 10 m / s, bead loading was 85% in terms of volume. The three peaks that appear in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry before milling [(100), (20-1) and a peak attributed to Miller index (3-1-1)] the ratio of the total intensity total intensity of the three peaks appearing in X-ray diffraction pattern of the chabazite-type zeolite contained in the slurry after grinding for (Ha) (Hb) (Hb / Ha), was 0.90. Further, filtration of the slurry after grinding, to obtain a chabazite-type zeolite was dried. This type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. [0085] Comparative Example 1  of pure water 2836g in 25% N, N, N- trimethyl adamantane ammonium aqueous solution (manufactured by Seiko Chem Japan) and 327 g, KOH concentration 95.5% by weight of potassium hydroxide 27 g, aqueous sodium aluminate (Al 2 O 3 concentration of 22 wt%, Na 2 O concentration of 17 wt%) and 65 g, was added 225g of fumed silica (manufactured by Tokuyama Corp. REOLOSIL QS40), to obtain a well mixed slurry. The raw material slurry was subjected to heat treatment for 96 hours water at 150 ℃. Then, take out the raw material slurry hydrothermal treatment, filtration, washing, obtain a chabazite-type zeolite was dried. [0086]  The resulting chabazite-type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. Also shows the particle size distribution in Fig. An electron micrograph is shown in FIG. [0087] Comparative Example 2  Pure water 2793g in 25% N, N, N- trimethyl adamantane ammonium aqueous solution (manufactured by Seiko Chem Japan) and 326 g, KOH concentration 95.5% by weight of potassium hydroxide 18 g, aqueous sodium aluminate (Al 2 O 3 concentration of 22 wt%, Na 2 O concentration of 17 wt%) to 119 g, was added 248g of fumed silica (manufactured by Tokuyama Corp. REOLOSIL QS40), to obtain a well mixed slurry. The raw material slurry was subjected to heat treatment for 96 hours water at 150 ℃. Then, take out the raw material slurry hydrothermal treatment, filtration, washing, obtain a chabazite-type zeolite was dried. [0088]  The obtained zeolite was evaluated in the same manner as in Example 1. The results are shown in Table 1. Also shows the particle size distribution in Fig. An electron micrograph is shown in FIG. [0089] Comparative Example 3  pure water 2,751g to 25% N, N, N- trimethyl adamantane ammonium aqueous solution (manufactured by Seiko Chem Japan) and 324 g, KOH concentration 95.5% by weight of potassium hydroxide 3g, aqueous sodium aluminate (Al 2 O 3 concentration of 22 wt%, Na 2 O concentration of 17 wt%) to 177 g, was added 243g of fumed silica (manufactured by Tokuyama Corp. REOLOSIL QS40), to obtain a well mixed slurry. The raw material slurry was subjected to heat treatment for 96 hours water at 150 ℃. Then, take out the raw material slurry hydrothermal treatment to obtain filtered, washed, and dried chabazite-type zeolite.[0090] The resulting chabazite-type zeolite, was evaluated in the same manner as in Example 1. The results are shown in Table 1. Also shows the particle size distribution in Fig. An electron micrograph is shown in FIG. WE CLAIMS [Requested item 1]  Following (a) to type zeolite for substrate coating having a (D). (B) Si, contain Al, (b) SiO 2 / Al 2 O 3 molar ratio, 5

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1 201917019985-RELEVANT DOCUMENTS [12-09-2023(online)].pdf 2023-09-12
1 201917019985.pdf 2019-05-20
2 201917019985-RELEVANT DOCUMENTS [23-09-2022(online)].pdf 2022-09-23
2 201917019985-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-05-2019(online)].pdf 2019-05-20
3 201917019985-STATEMENT OF UNDERTAKING (FORM 3) [20-05-2019(online)].pdf 2019-05-20
3 201917019985-IntimationOfGrant14-10-2020.pdf 2020-10-14
4 201917019985-REQUEST FOR EXAMINATION (FORM-18) [20-05-2019(online)].pdf 2019-05-20
4 201917019985-PatentCertificate14-10-2020.pdf 2020-10-14
5 201917019985-FORM 18 [20-05-2019(online)].pdf 2019-05-20
5 201917019985-DRAWING [04-08-2020(online)].pdf 2020-08-04
6 201917019985-FORM 1 [20-05-2019(online)].pdf 2019-05-20
6 201917019985-FER_SER_REPLY [04-08-2020(online)].pdf 2020-08-04
7 201917019985-OTHERS [04-08-2020(online)].pdf 2020-08-04
7 201917019985-DRAWINGS [20-05-2019(online)].pdf 2019-05-20
8 201917019985-FORM 3 [31-07-2020(online)].pdf 2020-07-31
8 201917019985-DECLARATION OF INVENTORSHIP (FORM 5) [20-05-2019(online)].pdf 2019-05-20
9 201917019985-COMPLETE SPECIFICATION [20-05-2019(online)].pdf 2019-05-20
9 201917019985-Information under section 8(2) [31-07-2020(online)].pdf 2020-07-31
10 201917019985-FORM 3 [13-07-2020(online)].pdf 2020-07-13
10 201917019985-OTHERS-240519.pdf 2019-05-29
11 201917019985-certified copy of translation [27-04-2020(online)].pdf 2020-04-27
11 201917019985-Correspondence-240519.pdf 2019-05-29
12 201917019985-FER.pdf 2020-02-10
12 201917019985-Proof of Right (MANDATORY) [04-06-2019(online)].pdf 2019-06-04
13 201917019985-FORM 3 [24-10-2019(online)].pdf 2019-10-24
13 201917019985-FORM-26 [04-06-2019(online)].pdf 2019-06-04
14 201917019985-AMMENDED DOCUMENTS [09-08-2019(online)].pdf 2019-08-09
14 201917019985-Power of Attorney-060619.pdf 2019-06-14
15 201917019985-FORM 13 [09-08-2019(online)].pdf 2019-08-09
15 201917019985-OTHERS-060619.pdf 2019-06-14
16 201917019985-Correspondence-060619.pdf 2019-06-14
16 201917019985-MARKED COPIES OF AMENDEMENTS [09-08-2019(online)].pdf 2019-08-09
17 abstract.jpg 2019-07-03
18 201917019985-MARKED COPIES OF AMENDEMENTS [09-08-2019(online)].pdf 2019-08-09
18 201917019985-Correspondence-060619.pdf 2019-06-14
19 201917019985-FORM 13 [09-08-2019(online)].pdf 2019-08-09
19 201917019985-OTHERS-060619.pdf 2019-06-14
20 201917019985-AMMENDED DOCUMENTS [09-08-2019(online)].pdf 2019-08-09
20 201917019985-Power of Attorney-060619.pdf 2019-06-14
21 201917019985-FORM 3 [24-10-2019(online)].pdf 2019-10-24
21 201917019985-FORM-26 [04-06-2019(online)].pdf 2019-06-04
22 201917019985-FER.pdf 2020-02-10
22 201917019985-Proof of Right (MANDATORY) [04-06-2019(online)].pdf 2019-06-04
23 201917019985-certified copy of translation [27-04-2020(online)].pdf 2020-04-27
23 201917019985-Correspondence-240519.pdf 2019-05-29
24 201917019985-OTHERS-240519.pdf 2019-05-29
24 201917019985-FORM 3 [13-07-2020(online)].pdf 2020-07-13
25 201917019985-COMPLETE SPECIFICATION [20-05-2019(online)].pdf 2019-05-20
25 201917019985-Information under section 8(2) [31-07-2020(online)].pdf 2020-07-31
26 201917019985-DECLARATION OF INVENTORSHIP (FORM 5) [20-05-2019(online)].pdf 2019-05-20
26 201917019985-FORM 3 [31-07-2020(online)].pdf 2020-07-31
27 201917019985-DRAWINGS [20-05-2019(online)].pdf 2019-05-20
27 201917019985-OTHERS [04-08-2020(online)].pdf 2020-08-04
28 201917019985-FER_SER_REPLY [04-08-2020(online)].pdf 2020-08-04
28 201917019985-FORM 1 [20-05-2019(online)].pdf 2019-05-20
29 201917019985-DRAWING [04-08-2020(online)].pdf 2020-08-04
29 201917019985-FORM 18 [20-05-2019(online)].pdf 2019-05-20
30 201917019985-PatentCertificate14-10-2020.pdf 2020-10-14
30 201917019985-REQUEST FOR EXAMINATION (FORM-18) [20-05-2019(online)].pdf 2019-05-20
31 201917019985-STATEMENT OF UNDERTAKING (FORM 3) [20-05-2019(online)].pdf 2019-05-20
31 201917019985-IntimationOfGrant14-10-2020.pdf 2020-10-14
32 201917019985-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-05-2019(online)].pdf 2019-05-20
32 201917019985-RELEVANT DOCUMENTS [23-09-2022(online)].pdf 2022-09-23
33 201917019985.pdf 2019-05-20
33 201917019985-RELEVANT DOCUMENTS [12-09-2023(online)].pdf 2023-09-12

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