CN112934212B - Method for preparing catalyst by taking silica gel particles as carrier - Google Patents
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- CN112934212B CN112934212B CN201911258194.4A CN201911258194A CN112934212B CN 112934212 B CN112934212 B CN 112934212B CN 201911258194 A CN201911258194 A CN 201911258194A CN 112934212 B CN112934212 B CN 112934212B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000000741 silica gel Substances 0.000 title claims abstract description 81
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 81
- 239000002245 particle Substances 0.000 title claims abstract description 79
- 239000003054 catalyst Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 39
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 17
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005470 impregnation Methods 0.000 claims abstract description 15
- 230000004913 activation Effects 0.000 claims abstract description 5
- 239000012298 atmosphere Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 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 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 4
- 230000001476 alcoholic effect Effects 0.000 claims description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 4
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 3
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- 229940093475 2-ethoxyethanol Drugs 0.000 claims description 2
- 235000019437 butane-1,3-diol Nutrition 0.000 claims description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 229960004063 propylene glycol Drugs 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 235000013772 propylene glycol Nutrition 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000001994 activation Methods 0.000 abstract description 2
- 238000007725 thermal activation Methods 0.000 abstract description 2
- 238000009827 uniform distribution Methods 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000000203 mixture Substances 0.000 description 8
- 239000011148 porous material Substances 0.000 description 5
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 4
- 229910052746 lanthanum Inorganic materials 0.000 description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- -1 marks Chemical compound 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/396—Distribution of the active metal ingredient
- B01J35/399—Distribution of the active metal ingredient homogeneously throughout the support particle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0207—Pretreatment of the support
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention belongs to the technical field of catalytic preparation, and relates to a method for preparing a catalyst by taking silica gel particles as a carrier. The method is characterized in that an alcohol solution of nitrate is mixed with silica gel particles by adopting an impregnation method to prepare a supported catalyst; the silica gel particles are silica gel particles subjected to heat activation treatment. The alcohol is used as the impregnating solution solvent, so that the structural integrity of silica gel particles and the high strength of the obtained catalyst in the impregnating process are ensured. By suitable thermal activation of the silica gel particles, a uniform distribution of the active species on the silica gel particles is ensured. The alcohol and nitrate are cheap and easy to obtain, and the catalyst preparation process is simple and convenient to operate.
Description
Technical Field
The invention relates to a method for preparing a catalyst by taking silica gel particles as a carrier, and belongs to the technical field of catalyst preparation.
Background
The silica gel has high chemical stability and thermal stability, adjustable pore structure, extremely low biotoxicity and low cost and is easily obtained, so the silica gel is widely used as a catalyst carrier (Hu Wei. Preparation of catalyst carrier silica gel and performance research, university of Lanzhou, 2010:2. Song Shuxiao. Preparation of large-particle-size spherical silica gel and application thereof in heavy metal ion adsorption, university of Tianjin, 2010:1). However, water is greatly released when adsorbed on the surface of silica gel, so that gas in the pore canal of the silica gel expands sharply; because the pore channels in the silica gel are unevenly distributed, the silica gel particles can be cracked and crushed under the action of stress after being immersed in water. In preparing a catalyst with silica gel as a support, it may be desirable for the silica gel to have a uniform size on the order of millimeters for a particular catalytic reaction process. The impregnation operation is usually carried out with water as medium. The common silica gel particles burst when meeting water, so that the requirements of a supported catalyst prepared by an impregnation method cannot be met.
By adding reinforcing agents such as aluminum and the like, changing the pore channel size or modifying the surface of silica gel, the water resistance of the silica gel can be improved, and silica gel particles which cannot crack when meeting water are obtained (Zhu Lili. Preparation of a water-resistant silica gel material and research on the adsorption performance of two-component VOCs. Shandong university of science and technology, 2011: 14). These modification processes have found widespread use in the industrial production of silica gels. However, the water-resistant silica gel particles prepared by the special process have different compositions, adsorption performance and surface properties from those of the common silica gel particles, although the probability of cracking when encountering water is reduced compared with the common silica gel particles. Thus, water-resistant silica gel particles often do not meet the requirements for catalyst preparation.
Disclosure of Invention
The invention aims to provide a method for preparing a catalyst by taking silica gel particles as a carrier, which overcomes the defects of the prior art.
To achieve the purpose, the invention adopts the following technical scheme:
mixing an alcohol solution of nitrate with silica gel particles by adopting an impregnation method to prepare a supported catalyst; the silica gel particles are silica gel particles subjected to heat activation treatment.
In the method provided by the invention, the particle size of the silica gel is 1-15mm.
In the method provided by the invention, the nitrate is one or more than two of lithium nitrate, magnesium nitrate, aluminum nitrate, chromium nitrate, manganese nitrate, ferric nitrate, cobalt nitrate, nickel nitrate, copper nitrate, zinc nitrate, lanthanum nitrate and cerium nitrate.
In the method provided by the invention, the alcohol is one or more than two of methanol, ethanol, n-propanol, ethylene glycol, methoxyethanol, 1, 2-propylene glycol, 2-ethoxyethanol, 1, 3-butanediol and 1, 4-butanediol.
In the method provided by the invention, the heating and activating temperature of the silica gel particles is 110-220 ℃, preferably 150-180 ℃, and the heating and activating time is 1-48 hours, preferably 12-24 hours.
The method provided by the invention comprises the following steps:
(a) Heating and activating silica gel particles in air atmosphere,
(b) Impregnating the activated silica gel particles with an alcoholic solution of nitrate,
(c) And drying the impregnated silica gel particles and roasting the silica gel particles in an air atmosphere to obtain the catalyst taking the silica gel particles as the carrier.
In the step (b), the mass fraction of the nitrate in the alcohol solution of the nitrate is 1-35%, preferably 5-30%, the liquid-solid volume ratio of the dipping operation is 0.1-50, preferably 0.2-20, and the dipping duration is 0.1-48 hours, preferably 0.2-36 hours; in step (c), the silica gel particles after impregnation are calcined at a temperature of 300 to 650 ℃, preferably 350 to 500 ℃, for a period of 1 to 24 hours, preferably 2 to 12 hours.
Commercially available silica gels are numerous in brand, and vary in composition, pore structure, adsorption properties, and surface properties. In the laboratory, silica gel samples with specific physicochemical properties can also be obtained, depending on the preparation method. The method provided by the invention aims at all granular silica gel which can influence the preparation of the catalyst due to the cracking of the catalyst when encountering water, and has no limitation on other properties of the silica gel, such as marks, preparation methods, physical and chemical properties and the like.
The impregnation fluid used in the method provided by the present invention inevitably contains water. The water comes mainly from the following aspects: (1) nitrate may contain water of crystallization; (2) Nitrate, water contained in alcohol in the form of impurities; (3) Water absorbed from the air during formulation and use of the modifier. The water content of the impregnating solution introduced by the method is very small and controllable, and the characteristic that the impregnating solution takes alcohol as a solvent is not changed.
The preparation method of the silica gel supported catalyst provided by the invention uses alcohol as an impregnating solution solvent, so that the structural integrity of silica gel particles and the high strength of the obtained catalyst in the impregnating process are ensured. By suitable thermal activation of the silica gel particles, a uniform distribution of the active species on the silica gel particles is ensured. The alcohol and nitrate are cheap and easy to obtain, and the catalyst preparation process is simple and convenient to operate.
Detailed Description
The following examples will illustrate the invention further. The present invention is not limited to the following examples.
Example 1
The silica gel particles are commercially available type B silica gel, are spherical and have diameters of 3-5mm.
21g of lanthanum nitrate (La (NO) 3 ) 3 ·6H 2 O) was dissolved in 60g of n-propanol to prepare an impregnating solution.
10g of the above silica gel particles were taken, activated in an air atmosphere at 180℃for 12 hours, and placed in a desiccator to be cooled to room temperature. The activated silica gel particles were mixed with 45mL of the impregnating solution, and the mixture was allowed to stand in a sealed state for 10 minutes. Filtering excessive soaking solution after soaking, air drying silica gel particles, drying at 120deg.C, and calcining at 450deg.C in air atmosphere for 12 hr to obtain La/SiO 2 A catalyst. The obtained catalyst particles are complete and semi-transparent, and the point crush strength is 3.72MPa. The elemental composition of the catalyst particle profile was analyzed using energy dispersive X-ray spectroscopy, and lanthanum was seen to be uniformly distributed throughout the particle.
The impregnation liquid used in the operation comprises 26% of lanthanum nitrate by mass. The silica gel particles used had a bulk of 23mL. The impregnation operation had a liquid to solid volume ratio of 2.
Example 2
The procedure and conditions for the preparation of the catalyst were the same as described in example 1, except that the silica gel particles used were activated in an air atmosphere at 150℃for 24 hours, as in example 1.
The obtained catalyst particles are complete and semi-transparent, and the point crush strength is 3.91MPa. The elemental composition of the catalyst particle profile was analyzed using energy dispersive X-ray spectroscopy, and lanthanum was seen to be uniformly distributed throughout the particle.
The impregnation liquid used in the operation comprises 26% of lanthanum nitrate by mass. The silica gel particles used had a bulk of 23mL. The impregnation operation had a liquid to solid volume ratio of 2.
Comparative example 1
The procedure and conditions for the preparation of the catalyst were the same as described in example 1, except that the silica gel used was not heat activated in an air atmosphere.
The obtained catalyst particles are complete and semitransparent, and the point crush strength is 4.25MPa. The elemental composition of the catalyst particle profile was analyzed using energy dispersive X-ray spectroscopy, and lanthanum was seen to be distributed only on the particle surface.
Comparative example 2
The procedure and conditions for the preparation of the catalyst were the same as described in example 1, except that the silica gel particles used were activated in an air atmosphere at 550℃for 24 hours.
The catalyst particles obtained had a small amount of cracking, were semitransparent, and had a point crush strength of 2.22MPa. The elemental composition of the catalyst particle profile was analyzed using energy dispersive X-ray spectroscopy, and lanthanum was seen to be distributed throughout the particle, but not uniformly distributed, with severe agglomeration.
Comparative example 3
21g of lanthanum nitrate (La (NO) 3 ) 3 ·6H 2 O) is dissolved in 100g of water to prepare an impregnating solution.
10g of the silica gel particles used in the examples were activated in accordance with the procedure of the examples and mixed with 45mL of impregnating solution. The silica gel particles are cracked after contacting with the impregnating solution, and the slurry is obtained after slightly stirring.
Of course, many other embodiments of the invention are possible. Various corresponding changes and modifications can be made by those skilled in the art without departing from the spirit and substance of the invention, but these changes and modifications shall fall within the scope of the claims of the present invention.
Claims (11)
1. A method for preparing a catalyst by taking silica gel particles as a carrier is characterized in that an alcohol solution of nitrate is mixed with the silica gel particles by an impregnation method to prepare a supported catalyst; the silica gel particles are silica gel particles subjected to heat activation treatment, the particle size of the silica gel particles is 1-15mm, the heat activation temperature of the silica gel particles is 110-220 ℃, the heat activation time is 1-48 hours,
the method comprises the steps of,
(a) Heating and activating silica gel particles in air atmosphere,
(b) Impregnating the activated silica gel particles with an alcoholic solution of nitrate,
(c) Drying the impregnated silica gel particles and roasting the silica gel particles in air atmosphere to obtain the catalyst taking the silica gel particles as a carrier; the baking temperature of the impregnated silica gel particles is 300-650 ℃ and the baking time is 1-24 hours.
2. The method for preparing a catalyst by using silica gel particles as a carrier according to claim 1, wherein the nitrate is one or more of lithium nitrate, magnesium nitrate, aluminum nitrate, chromium nitrate, manganese nitrate, ferric nitrate, cobalt nitrate, nickel nitrate, copper nitrate, zinc nitrate, lanthanum nitrate and cerium nitrate.
3. The method for preparing a catalyst by using silica gel particles as a carrier according to claim 1, wherein the alcohol is one or more of methanol, ethanol, n-propanol, ethylene glycol, methoxyethanol, 1, 2-propanediol, 2-ethoxyethanol, 1, 3-butanediol, and 1, 4-butanediol.
4. The method for preparing a catalyst by using silica gel particles as a carrier according to claim 1, wherein the silica gel particles are heated and activated at a temperature of 150-180 ℃ for 12-24 hours.
5. The method for preparing a catalyst by using silica gel particles as a carrier according to claim 1, wherein the mass fraction of nitrate in the alcoholic solution of nitrate in the step (b) is 1% -35%.
6. The method for preparing a catalyst using silica gel particles as a carrier according to claim 5, wherein the mass fraction of nitrate in the alcoholic solution of nitrate in the step (b) is 5% -30%.
7. The method for preparing a catalyst using silica gel particles as a carrier according to claim 1, wherein the impregnation operation in the step (b) has a liquid-solid volume ratio of 0.1 to 50.
8. The method for preparing a catalyst using silica gel particles as a carrier according to claim 7, wherein the impregnation operation in the step (b) has a liquid-solid volume ratio of 0.2 to 20.
9. The method for preparing a catalyst using silica gel particles as a carrier according to claim 1, wherein the duration of the impregnation in step (b) is 0.1 to 48 hours.
10. The method for preparing a catalyst using silica gel particles as a carrier according to claim 9, wherein the duration of the impregnation in step (b) is 0.2 to 36 hours.
11. The method for preparing a catalyst using silica gel particles as a carrier according to claim 1, wherein the calcination temperature of the impregnated silica gel particles in step (c) is 350-500 ℃ and the calcination time is 2-12 hours.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB356731A (en) * | 1930-03-01 | 1931-09-01 | Ig Farbenindustrie Ag | Improvements in the catalytic hydrogenation of esters of aliphatic carboxylic acids |
| CN102407093A (en) * | 2011-07-26 | 2012-04-11 | 华东理工大学 | Composite silica gel humidity adjusting agent |
| CN104525219A (en) * | 2015-01-04 | 2015-04-22 | 北京旭阳化工技术研究院有限公司 | Method for preparing catalyst for preparing methyl glycolate by adding hydrogen into dimethyl oxalate |
| CN105566521A (en) * | 2014-10-09 | 2016-05-11 | 中国石油化工股份有限公司 | Chromium-based polyethylene catalyst and preparation method thereof |
| CN107308982A (en) * | 2016-04-26 | 2017-11-03 | 中国石油化工股份有限公司 | The synthetic method of modifying titanium-silicon molecular sieve catalyst and its preparation method and application and epoxychloropropane |
-
2019
- 2019-12-10 CN CN201911258194.4A patent/CN112934212B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB356731A (en) * | 1930-03-01 | 1931-09-01 | Ig Farbenindustrie Ag | Improvements in the catalytic hydrogenation of esters of aliphatic carboxylic acids |
| CN102407093A (en) * | 2011-07-26 | 2012-04-11 | 华东理工大学 | Composite silica gel humidity adjusting agent |
| CN105566521A (en) * | 2014-10-09 | 2016-05-11 | 中国石油化工股份有限公司 | Chromium-based polyethylene catalyst and preparation method thereof |
| CN104525219A (en) * | 2015-01-04 | 2015-04-22 | 北京旭阳化工技术研究院有限公司 | Method for preparing catalyst for preparing methyl glycolate by adding hydrogen into dimethyl oxalate |
| CN107308982A (en) * | 2016-04-26 | 2017-11-03 | 中国石油化工股份有限公司 | The synthetic method of modifying titanium-silicon molecular sieve catalyst and its preparation method and application and epoxychloropropane |
Non-Patent Citations (1)
| Title |
|---|
| 氯化钙在粗孔硅胶上的单层分散及其氨吸附—乙醇溶液浸渍法的影响;汤茂辉等;《离子交换与吸附》;20090430;第25卷;第107-113页 * |
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