CN112279270A - Aluminum phosphate molecular sieve and preparation method thereof - Google Patents
Aluminum phosphate molecular sieve and preparation method thereof Download PDFInfo
- Publication number
- CN112279270A CN112279270A CN201910660267.6A CN201910660267A CN112279270A CN 112279270 A CN112279270 A CN 112279270A CN 201910660267 A CN201910660267 A CN 201910660267A CN 112279270 A CN112279270 A CN 112279270A
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- preparation
- aluminum phosphate
- phosphate molecular
- crystallization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 46
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002028 Biomass Substances 0.000 claims abstract description 27
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002425 crystallisation Methods 0.000 claims abstract description 21
- 230000008025 crystallization Effects 0.000 claims abstract description 21
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003610 charcoal Substances 0.000 claims abstract description 14
- 239000002243 precursor Substances 0.000 claims abstract description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 150000001412 amines Chemical class 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 125000005842 heteroatom Chemical group 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 229940043279 diisopropylamine Drugs 0.000 claims description 5
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229920002488 Hemicellulose Polymers 0.000 claims description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 2
- 235000011613 Pinus brutia Nutrition 0.000 claims description 2
- 241000018646 Pinus brutia Species 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 239000013078 crystal Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/54—Phosphates, e.g. APO or SAPO compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
- C01B37/04—Aluminophosphates [APO compounds]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides an aluminum phosphate molecular sieve and a preparation method thereof. The preparation method comprises the following steps: performing high-temperature treatment on a biomass raw material to obtain biomass charcoal; mixing and stirring pseudo-boehmite, phosphoric acid, organic amine, water and a heteroatom source, and preparing a crystallized precursor by using biomass carbon as a catalyst; and (3) heating the crystallization precursor to 140-200 ℃ by microwave, carrying out microwave crystallization for 5min-24h to obtain a crystallization product, washing, filtering, drying, and roasting to obtain the aluminum phosphate molecular sieve. The aluminum phosphate molecular sieve has an AEL structure and has a higher specific surface area.
Description
Technical Field
The invention relates to a preparation method of a molecular sieve, in particular to a preparation method of an AEL-structured aluminum phosphate molecular sieve, belonging to the technical field of molecular sieve preparation.
Background
The hydrothermal method is an important means for synthesizing molecular sieves, and generally, the hydrothermal method needs a long time to ensure the hydrolysis of amorphous silicon and aluminum species, the formation of crystal nuclei and the growth of crystals, so that molecular sieve crystals are finally obtained. Accelerating the synthesis speed of the molecular sieve has great significance for improving the industrial production efficiency, saving the energy consumption and increasing the income.
The higher crystallization temperature can also increase the growth speed of the molecular sieve and shorten the synthesis time. In addition, the growth rate of the molecular sieve can be increased by microwave heating, but the aggregation phenomenon of small crystal grains is difficult to avoid. In addition, the microwave heating method has a high temperature rise rate, which is not beneficial to the generation of crystal nuclei in the synthesis of the molecular sieve.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a method for preparing an aluminum phosphate molecular sieve, wherein the prepared aluminum phosphate molecular sieve has a one-dimensional ten-membered ring channel structure (AEL type) and a relatively high specific surface area.
In order to achieve the above technical objects, the present invention provides a method for preparing an aluminum phosphate molecular sieve, comprising:
performing high-temperature treatment on a biomass raw material to obtain biomass charcoal;
mixing and stirring pseudo-boehmite, phosphoric acid, organic amine, water and a heteroatom source, and preparing a crystallized precursor by using biomass carbon as a catalyst; wherein the pseudoboehmite (with Al)2O3Meter): phosphoric acid (with P)2O5Meter): heteroatom source: organic amine: the molar ratio of water is (0.8-1.0): 0-0.8): 0.6-1.2): 30-100, biomass charcoal and pseudo-boehmite (Al is used)2O3Calculated) is (0.002-1): 1;
heating the crystallization precursor to 140-200 ℃ by microwave, crystallizing for 5min-24h by microwave to obtain a crystallization product, washing, filtering, drying, and roasting to obtain the aluminum phosphate molecular sieve.
The preparation method of the aluminum phosphate molecular sieve adopts microwave heating, simultaneously takes the biomass charcoal as a catalyst, shortens the crystallization induction period of the molecular sieve, accelerates the crystal nucleus generation and crystal growth process, and realizes the purpose of quickly synthesizing the molecular sieve, and the obtained molecular sieve has the crystallinity and the purity which are not lower than those of a conventional hydrothermal synthesis sample.
The preparation method comprises the step of preparing the biomass charcoal catalyst.
In one embodiment of the present invention, the high temperature treatment may be performed at a temperature of 300 ℃ to 1000 ℃. For example, the temperature of the high-temperature treatment may be 400 ℃, 500 ℃, 600 ℃, 700 ℃, 800, 900 ℃, or the like.
In one embodiment of the present invention, the high temperature treatment time may be 1h to 15 h.
In one embodiment of the present invention, the processing atmosphere for the high temperature treatment is an inert atmosphere. Wherein the inert atmosphere may be N2Or Ar.
In one embodiment of the present invention, the biomass feedstock employed may be biomass and/or biomass-based chemicals. Wherein, the biomass can be pine needles and/or (corn) straws, and the biomass chemicals can be one or the combination of more than two of raw powders of cellulose, lignin and hemicellulose.
The preparation method of the invention comprises the step of preparing the crystallization precursor. Wherein, pseudoboehmite, phosphoric acid, organic amine, water and a heteroatom source are mixed and stirred, and biomass charcoal is used as a catalyst to prepare a crystallization precursor.
In one embodiment of the present invention, the heteroatom source used is one or a combination of two or more of soluble compounds of Si, Mg, Co, Cu, Ni, Zr, La, Ce and hydrolyzable compounds of Si, Mg, Co, Cu, Ni, Zr, La, Ce.
In the preparation method of the aluminum phosphate molecular sieve, organic amine is used as an organic template. In a specific embodiment of the present invention, the organic amine is one or a combination of two or more of triethylamine, di-n-propylamine, and diisopropylamine.
In one embodiment of the present invention, the mixing and stirring time is 3min to 10 min.
The preparation method comprises the step of carrying out microwave crystallization on the crystallization precursor to obtain the aluminum phosphate molecular sieve.
In a specific embodiment of the invention, deionized water is used for washing, wherein the mass ratio of the deionized water to the crystallized product is 5-10: 1.
in one embodiment of the invention, the drying temperature is 60-120 ℃, and the drying time is 2-12 h.
In one embodiment of the invention, the roasting temperature is 500-650 ℃, and the roasting time is 2-6 h.
The invention also provides an aluminum phosphate molecular sieve, wherein the aluminum phosphate molecular sieve is prepared by the preparation method of the aluminum phosphate molecular sieve. The aluminum phosphate molecular sieve has AEL structure, high crystallinity, high purity and high specific surface area (200 m)2/g-230m2/g)。
According to the preparation method of the aluminum phosphate molecular sieve, biomass carbon is used as a catalyst, microwave heating is matched, and the AEL molecular sieve is rapidly prepared under the synergistic effect of the carbon-based catalyst and the microwave. The preparation method has simple and rapid process, and the prepared molecular sieve has high crystallinity, high specific surface area and high purity.
Drawings
Figure 1 is an XRD spectrum of the aluminum phosphate molecular sieve of example 1.
FIG. 2 is an SEM image of the aluminum phosphate molecular sieve of example 2.
Detailed Description
The technical solutions of the present invention will be described in detail below in order to clearly understand the technical features, objects, and advantages of the present invention, but the present invention is not limited to the practical scope of the present invention.
Example 1
This example provides a method for preparing an AEL SAPO-11 molecular sieve, comprising the following steps:
roasting cellulose and lignin (in a mass ratio of 2: 1) at 500 ℃ for 4 hours in an anaerobic environment, and naturally cooling to obtain biomass charcoal for subsequent use;
pseudo-boehmite (Nicoti Henghui chemical Co., Ltd., Al)2O370 wt%), phosphoric acid (analytically pure, available from Shigaku corporation), diisopropylamine (chemically pure, available from the national drug group chemical reagent Co., Ltd.), and pseudoboehmite (with Al)2O3Meter): phosphoric acid (with P)2O5Meter): diisopropylamine: the molar ratio of deionized water is 1.0:1.0: 1.2: 40, mixing the biomass charcoal and the pseudo-boehmite according to the mass ratio of 1:10 fully mixing to prepare a crystallization precursor;
crystallizing the obtained sol in a high-pressure crystallization kettle for 5 minutes by microwave heating to 200 ℃ to obtain a crystallized product; washing and filtering the crystallized product by using deionized water with the mass 5 times that of the crystallized product, then drying the crystallized product for 10 hours at 100 ℃, and roasting the crystallized product for 4 hours at 600 ℃ to obtain the AlPO-11 molecular sieve with the AEL structure.
The phase structure of the AEL-structured AlPO-11 molecular sieve is shown in FIG. 1, and the specific surface area is 170m2/g。
Example 2
This example provides a method for preparing an AEL SAPO-11 molecular sieve, comprising the following steps:
roasting cellulose for 4 hours at 500 ℃ in an anaerobic environment, and naturally cooling to obtain biomass charcoal for subsequent use;
pseudo-boehmite (Nicoti Henghui chemical Co., Ltd., Al)2O370 wt%), phosphoric acid (analytically pure, west Longa chemical Co., Ltd.), diisopropylamine (chemical reagent of national drug group Co., Ltd.), silica sol (SiO. in North China chemical engineering, Qingdao)230 wt.% of pseudoboehmite (as Al)2O3Meter): silica sol (in SiO)2Meter): phosphoric acid (with P)2O5Meter): di-n-propylamine: the molar ratio of the deionized water is 1.0:0.2:1.0:1.1:100, and the biomass charcoal and the pseudo-boehmite (Al) are used2O3Meter) mass ratio of 1: fully mixing the raw materials in a proportion of 200 to prepare a crystallization precursor;
crystallizing the crystallized precursor for 0.5 hour under the condition of microwave heating to 180 ℃ to obtain a crystallized product; and washing and filtering the crystallized product by deionized water with the mass 6 times that of the crystallized product, drying the crystallized product for 8 hours at the temperature of 90 ℃, and roasting the crystallized product for 4 hours at the temperature of 600 ℃ to obtain the AEL-structured SAPO-11 molecular sieve.
The specific surface area of the SAPO-11 molecular sieve with the AEL structure of the example is 225m2The morphology is shown in FIG. 2 (scale A is 10 μm and scale B is 2 μm in FIG. 2).
Example 3
This example provides a method for preparing an AEL-structured LaAPO-11 molecular sieve, comprising the following steps:
taking straw powder, roasting for 4 hours at 500 ℃ in an anaerobic environment, and naturally cooling to obtain biomass charcoal for subsequent use;
pseudo-boehmite (Nicoti Henghui chemical Co., Ltd., Al)2O370 wt%), phosphoric acid (analytically pure, West Long chemical Co., Ltd.), di-n-propylamine (chemical purity, national medicine group chemical reagent Co., Ltd.), lanthanum nitrate (chemical purity, national medicine group chemical reagent Co., Ltd.), and pseudoboehmite (with Al)2O3Meter): lanthanum nitrate (with La)3+Meter): phosphoric acid (with P)2O5Meter): di-n-propylamine: the molar ratio of the deionized water is 1.0:0.05:1.0:1.1:65, and the biomass charcoal and the pseudo-boehmite (by Al)2O3Meter) is 1:100 to obtain a crystallization precursor;
heating the crystallization precursor to 200 ℃ by microwave for crystallization for 1.0 hour to obtain a crystallization product; and washing and filtering the crystallized product by using deionized water with the mass 8 times that of the crystallized product, drying the crystallized product for 8 hours at 100 ℃, and roasting the dried crystallized product for 4 hours at 600 ℃ to obtain the AEL-structured LaAPO-11 molecular sieve.
The specific surface area of the AEL-structured LaAPO-11 molecular sieve is 198m2/g。
Claims (10)
1. A method for preparing an aluminum phosphate molecular sieve, wherein the method comprises:
performing high-temperature treatment on a biomass raw material to obtain biomass charcoal;
mixing and stirring pseudo-boehmite, phosphoric acid, organic amine, water and a heteroatom source, and preparing a crystallized precursor by using biomass carbon as a catalyst; wherein the pseudoboehmite (with Al)2O3Meter): phosphoric acid (with P)2O5Meter): heteroatom source: organic amine: the molar ratio of water is (0.8-1.0): 0-0.8): 0.6-1.2): 30-100, biomass charcoal and pseudo-boehmite (Al is used)2O3Calculated) is (0.002-1): 1;
and (3) heating the crystallization precursor to 140-200 ℃ by microwave, carrying out microwave crystallization for 5min-24h to obtain a crystallization product, washing, filtering, drying, and roasting to obtain the aluminum phosphate molecular sieve.
2. The preparation method according to claim 1, wherein the biomass raw material is one or a combination of two or more of pine needles, straws, cellulose, lignin and hemicellulose.
3. The preparation method according to claim 1, wherein the temperature of the high-temperature treatment is 300 ℃ to 1000 ℃;
preferably, the time of the high-temperature treatment is 1h-15 h;
preferably, the processing atmosphere of the high-temperature treatment is an inert atmosphere.
4. The production method according to claim 1, wherein the heteroatom source is one or a combination of two or more of soluble compounds and hydrolyzable compounds of Si, Mg, Co, Cu, Ni, Zr, La, Ce.
5. The production method according to claim 1, wherein the organic amine is one or a combination of two or more of triethylamine, di-n-propylamine, and diisopropylamine.
6. The production method according to claim 1, wherein the mixing and stirring time is 3min to 10 min.
7. The preparation method of claim 1, wherein the washing is performed by using deionized water, and the mass ratio of the deionized water to the crystallized product is 5-10: 1.
8. the preparation method according to claim 1, wherein the drying temperature is 60-120 ℃ and the drying time is 2-12 h.
9. The preparation method according to claim 1, wherein the roasting temperature is 500-650 ℃; the roasting time is 2-6 h.
10. An aluminum phosphate molecular sieve prepared by the method of preparing an aluminum phosphate molecular sieve of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660267.6A CN112279270B (en) | 2019-07-22 | 2019-07-22 | Aluminum phosphate molecular sieve and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660267.6A CN112279270B (en) | 2019-07-22 | 2019-07-22 | Aluminum phosphate molecular sieve and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112279270A true CN112279270A (en) | 2021-01-29 |
| CN112279270B CN112279270B (en) | 2022-12-09 |
Family
ID=74419100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910660267.6A Active CN112279270B (en) | 2019-07-22 | 2019-07-22 | Aluminum phosphate molecular sieve and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112279270B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101714A (en) * | 2023-07-30 | 2023-11-24 | 南京工业大学 | Magnesium modified NiAPO-11 molecular sieve catalyst and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110349A (en) * | 2015-09-17 | 2015-12-02 | 中国石油大学(华东) | Preparation method for nano-sized AEL-structure molecular sieve |
| CN105174279A (en) * | 2015-09-17 | 2015-12-23 | 中国石油大学(华东) | Preparation method of nanosize aluminum phosphate molecular sieve |
| CN105236445A (en) * | 2015-09-17 | 2016-01-13 | 中国石油大学(华东) | Microwave preparation method for nanometer-dimension aluminium phosphate molecular sieve |
| CN105271303A (en) * | 2015-09-17 | 2016-01-27 | 中国石油大学(华东) | Preparing method of AEL structure rare earth substituted aluminum phosphate molecular sieve |
| CN107952477A (en) * | 2016-10-14 | 2018-04-24 | 中国石油化工股份有限公司 | Application of the multi-stage porous SAPO molecular sieve in methanol to olefins reaction |
-
2019
- 2019-07-22 CN CN201910660267.6A patent/CN112279270B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110349A (en) * | 2015-09-17 | 2015-12-02 | 中国石油大学(华东) | Preparation method for nano-sized AEL-structure molecular sieve |
| CN105174279A (en) * | 2015-09-17 | 2015-12-23 | 中国石油大学(华东) | Preparation method of nanosize aluminum phosphate molecular sieve |
| CN105236445A (en) * | 2015-09-17 | 2016-01-13 | 中国石油大学(华东) | Microwave preparation method for nanometer-dimension aluminium phosphate molecular sieve |
| CN105271303A (en) * | 2015-09-17 | 2016-01-27 | 中国石油大学(华东) | Preparing method of AEL structure rare earth substituted aluminum phosphate molecular sieve |
| CN107952477A (en) * | 2016-10-14 | 2018-04-24 | 中国石油化工股份有限公司 | Application of the multi-stage porous SAPO molecular sieve in methanol to olefins reaction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101714A (en) * | 2023-07-30 | 2023-11-24 | 南京工业大学 | Magnesium modified NiAPO-11 molecular sieve catalyst and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112279270B (en) | 2022-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113233472B (en) | Synthesis method of nano small-grain ZSM-22 molecular sieve | |
| US10099932B2 (en) | Rapid synthesis method of small-crystal-grain ZSM-5 molecular sieve | |
| CN102329212A (en) | Refining method for long-chain binary acid | |
| CN112279270B (en) | Aluminum phosphate molecular sieve and preparation method thereof | |
| CN113371731A (en) | Rapid crystallization synthesis method of HZSM-5 molecular sieve | |
| CN102992376A (en) | Preparation method of sheet-shaped nano-grade cerium oxide | |
| CN105271322B (en) | Preparation method of fascicular magnesium carbonate trihydrate crystals | |
| CN113135577A (en) | Preparation method for rapidly synthesizing high-silicon ZSM-22 molecular sieve | |
| CN110407220B (en) | Rapid preparation method of SAPO-34 molecular sieve with large specific surface area | |
| CN111017942B (en) | Seed crystal for synthesizing L-type molecular sieve and preparation method and application thereof | |
| CN102815720B (en) | Synthetic method for SAPO-11 molecular sieve | |
| CN104671252A (en) | Method for synthesizing and preparing ZSM-22 molecular sieve under conditions of no organic template and no crystal seed | |
| CN112593292A (en) | Method for preparing metal whiskers by mechanically stripping lamellar MAX phase crystals | |
| CN112591764A (en) | Single crystal aluminum-rich cascade hole HZSM-5 molecular sieve and green preparation method thereof | |
| CN112250083B (en) | Micro-mesoporous composite aluminum phosphate molecular sieve and preparation method thereof | |
| CN115072736B (en) | Preparation method of EUO molecular sieve | |
| CN111848388A (en) | Crystals of dodecanedioic acid and preparation method thereof | |
| CN116409794B (en) | Method for synthesizing high-silicon SSZ-13 molecular sieve by strontium feldspar crystal transformation | |
| CN113233485B (en) | Micron-grade long rod-shaped alumina prepared by taking sugarcane core as template and preparation method thereof | |
| CN112076716B (en) | Composite phase nano molybdenum trioxide adsorbent and preparation method thereof | |
| CN111232999B (en) | Synthesis method of TON type molecular sieve with low silicon-aluminum ratio | |
| CN114890437B (en) | Small-granularity SAPO-34 molecular sieve rapidly synthesized by MTO spent catalyst and preparation method thereof | |
| CN115010144B (en) | Synthesis method of flaky ZSM-11 molecular sieve | |
| CN115893444A (en) | Preparation method of rod-shaped ZSM-5 molecular sieve | |
| CN110422854B (en) | Preparation method of pure silicon beta molecular sieve nanocrystal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |