CN115155632B - Preparation method of hydrogen chloride oxidation catalyst - Google Patents
Preparation method of hydrogen chloride oxidation catalyst Download PDFInfo
- Publication number
- CN115155632B CN115155632B CN202210728337.9A CN202210728337A CN115155632B CN 115155632 B CN115155632 B CN 115155632B CN 202210728337 A CN202210728337 A CN 202210728337A CN 115155632 B CN115155632 B CN 115155632B
- Authority
- CN
- China
- Prior art keywords
- hydrogen chloride
- oxidation catalyst
- substrate
- tio
- chloride oxidation
- 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.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 48
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 42
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910000041 hydrogen chloride Inorganic materials 0.000 title claims abstract description 42
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 33
- 230000003647 oxidation Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000011068 loading method Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000012798 spherical particle Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 2
- 230000000996 additive effect Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 9
- 229910052801 chlorine Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 7
- 229910052707 ruthenium Inorganic materials 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Substances [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910002492 Ce(NO3)3·6H2O Inorganic materials 0.000 description 2
- 230000010718 Oxidation Activity Effects 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004448 titration Methods 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/04—Preparation of chlorine from hydrogen chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a hydrogen chloride oxidation catalyst. The method comprises the steps of uniformly spraying TiO 2 slurry on a granular substrate to obtain an initial carrier, and drying the initial carrier at 60-120 ℃ to obtain a composite carrier, wherein the mass ratio of TiO 2 powder to water in the TiO 2 slurry is 1:0.7-1.8, and the mass ratio of TiO 2 powder to the substrate is 1:50-500; the heat conductivity coefficient of the substrate material is more than or equal to 10 W.m ‑1·K‑1 at the temperature of 327 ℃; and then loading Ru element and auxiliary metal element on the composite carrier, and roasting to obtain the hydrogen chloride oxidation catalyst. The invention adopts the composite carrier with high thermal conductivity, improves the heat transfer efficiency of the hydrogen chloride oxidation catalyst, and obviously improves the stability and the service life of the catalyst.
Description
Technical Field
The invention belongs to the field of catalyst preparation, and particularly relates to a preparation method of a high-efficiency heat-transfer hydrogen chloride oxidation catalyst.
Background
In the field of chemical industry, chlorine and hydrogen chloride are important industrial products and raw materials, more than 50% of chemical processes involve chlorine, and the chemical processes cover various industries such as polyurethane, fluorochemical industry, chlor-alkali, pesticide, textile, cosmetics and the like. Among them, chlorine is an important raw material in a large amount of industrial production, but hydrogen chloride is a large by-product at the end of the process. The byproduct hydrogen chloride has the problems of difficult storage, difficult treatment and difficult digestion. The recycling and efficient utilization of hydrogen chloride is a common problem to be solved in the chlorine industry. On the one hand, the method can solve the problem of treatment and emission caused by a large amount of hydrogen chloride byproducts, meets the basic requirements of green chemistry and circular economy, is beneficial to realizing closed cycle of chlorine resources and promotes sustainable development of chlorine industry. The catalytic oxidation method provides an effective path with low energy consumption and sustainable development for preparing chlorine by circulating hydrogen chloride.
The development of the catalytic oxidation method has been over 150 years, and the ruthenium-based catalyst is paid attention to because of high catalytic oxidation activity of hydrogen chloride, especially when titanium dioxide is used as a carrier, the beneficial interaction between the ruthenium active phase and the catalyst greatly improves the catalytic oxidation activity of hydrogen chloride of the ruthenium-based catalyst. However, current ruthenium-based catalysts still have some problems to be optimized. Since the hydrogen chloride oxidation reaction is generally an exothermic process, the conversion of hydrogen chloride molecules generates 28.5kJ of heat per mole, the thermal effect of which is not negligible in practical industrial production. The heat generated during the hydrogen chloride oxidation process tends to have an adverse effect on various types of hydrogen chloride oxidation catalysts, including ruthenium-based catalysts. Due to the untimely heat removal, the formation of local hot spots can lead to sintering deactivation and even volatilization loss of the active component. During the continuous reaction for a long time, the adverse effect caused by the thermal effect of the reaction is continuously amplified, resulting in a continuous decrease in the catalytic activity.
The fluidized bed reactor has a heat removal effect superior to that of a fixed bed reactor, and can remove heat in time. However, the fluidized bed process has problems of back mixing, catalyst particle abrasion, difficult control of equipment operation and the like, and has difficult continuous operation in actual operation, and the catalyst is easy to sinter and cause blockage. In contrast, the fixed bed process has easier operation control, can be operated more smoothly and continuously, and even has a relatively long catalyst life, but the catalyst has a reduced stability due to a poor heat removal effect.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the invention provides a preparation method of a hydrogen chloride oxidation catalyst.
For this purpose, the preparation method of the hydrogen chloride oxidation catalyst provided by the invention comprises the following steps:
(1) Uniformly spraying TiO 2 slurry on a granular substrate to obtain an initial carrier, and drying the initial carrier at 60-120 ℃ to obtain a composite carrier, wherein the mass ratio of TiO 2 powder to water in the TiO 2 slurry is 1:0.7-1.8, and the mass ratio of TiO 2 powder to the substrate is 1:50-500; the heat conductivity coefficient of the substrate material is more than or equal to 10 W.m -1·K-1 at the temperature of 327 ℃;
(2) Ru element and assistant metal element are loaded on the composite carrier to obtain the hydrogen chloride oxidation catalyst.
Optionally, the particle size of the TiO 2 powder is 20-80 nm.
Optionally, the substrate is one or a mixture of more than two of a SiC substrate, a BN substrate and an alpha-Al 2O3 substrate.
Optionally, the substrate is a mixture of one or more of spherical particles, cylindrical particles, pie particles, mesh particles, ring particles, cross particles, and rice-shaped particles.
Optionally, the drying time is 8-24 h.
Optionally, the auxiliary metal element is one or more of Cr, si, ce, al, cu, ni, co, re and Ir.
Alternatively, the loading is carried out by an impregnation method or an alkali precipitation method.
The invention adopts the composite carrier with high thermal conductivity, improves the heat transfer efficiency of the hydrogen chloride oxidation catalyst, and obviously improves the stability and service life of the catalyst; the invention adopts the composite carrier with the core-shell structure, and combines the beneficial interaction of the ruthenium-based catalyst and the titanium dioxide carrier and the excellent heat transfer effect provided by the high-thermal-conductivity substrate.
Detailed Description
Unless specifically stated otherwise, the terms herein are to be understood based on knowledge of one of ordinary skill in the relevant art.
The invention adopts a strategy of constructing the composite carrier, and greatly improves the heat transfer efficiency of the hydrogen chloride oxidation catalyst from the heat transfer property of the catalyst, thereby improving the stability of the hydrogen chloride oxidation catalyst. The composite carrier is of a core-shell structure, and a high-thermal-conductivity granular substrate is selected, so that the high-thermal-conductivity substrate has stronger hydrogen chloride and chlorine corrosion resistance, namely acid resistance and oxidation resistance, under the condition of hydrogen chloride catalytic oxidation reaction, and can bear the stress corrosion of chloride ions; on the other hand, has higher heat conductivity coefficient. For example, a substrate of the following materials (wherein 33.8@327 ℃ C. Represents that silicon carbide has a thermal conductivity of 33.8 W.m -1·K-1 at 327 ℃ C.) may be selected:
The SiC, BN, alpha-Al 2O3 and other high-thermal-conductivity materials are used as the components of the composite carrier, so that the heat transfer of the catalyst bed layer is effectively promoted, the possibility of local hot spots is further reduced, and the service life of the catalyst is prolonged. The particle size of the granular substrate can be selected from the particle size of related carriers such as the prior chemical industry field, the fermentation field or the catalyst field, and the like, for example, 1mm-10mm.
Based on the scheme of the invention, the technical personnel can optimally select the conditions related to the method of the invention, including but not limited to the proportion of related substances, the heat conductivity coefficient of a matrix, the drying temperature and time length, auxiliary elements, a loading method and the like so as to realize the effect of the invention; the loading and roasting can be carried out by adopting loading and roasting means in the existing preparation method of the hydrogen chloride oxidation catalyst and optimized loading and roasting means based on the prior art. The present invention is further illustrated by the following examples, but the present invention is not limited by the following examples.
Example 1:
Slowly adding 13.23g of solid TiO 2 (40-60 nm) into 15.0ml of deionized water, and fully stirring to form slurry; then uniformly spraying TiO 2 slurry on 108.0g of Raschig ring-shaped SiC (phi 5 multiplied by 5mm, the wall thickness is 1 mm); drying the mixture at 80 ℃ for 18 hours; obtaining a carrier A;
2.46g of RuCl 3·3H2 O and 2.33g of Ce (NO 3)3·6H2 O are dissolved in 50mL of 45% ethanol water solution by mass fraction), then 38.6g of carrier A is added, the mixture is stirred uniformly and then is placed still for soaking for 16 hours, the obtained material is dried for 5 hours at 100 ℃, and then is baked for 8 hours at 350 ℃ to obtain the hydrogen chloride oxidation catalyst A.
Example 2:
Slowly adding 18.58g of solid TiO 2 (50-70 nm) into 24.0ml of deionized water, and fully stirring to form slurry; then uniformly spraying TiO 2 slurry on 156.0g of cylinder BN (phi 3 multiplied by 3 mm); drying the mixture at 120 ℃ for 8 hours; obtaining a carrier B;
3.60g of RuCl 3·3H2 O and 4.11g of ethyl orthosilicate are dissolved in 60mL of 45% ethanol aqueous solution by mass fraction; then adding 75.8g of carrier B, stirring uniformly, standing and soaking for 16h; and drying the obtained material at 100 ℃ for 5 hours, and roasting at 350 ℃ for 8 hours to obtain the hydrogen chloride oxidation catalyst B.
Comparative example 1:
2.46g of RuCl 3·3H2 O and 2.33g of Ce (NO 3)3·6H2 O are dissolved in 50mL of 45% ethanol water solution by mass fraction), then 38.6g of Raschig ring-shaped carrier TiO 2 (phi 5X 5mm, ring wall thickness 1mm and solid TiO 2 with the thickness of 40-60 nm are pressed) are added, the mixture is stirred uniformly and then is placed still for soaking for 16 hours, the obtained material is dried for 5 hours at 100 ℃, and then is baked for 8 hours at 350 ℃ to obtain the hydrogen chloride oxidation catalyst C.
Comparative example 2:
3.60g of RuCl 3·3H2 O and 4.11g of ethyl orthosilicate are dissolved in 60mL of 45% ethanol aqueous solution by mass fraction; then adding 75.8g of cylindrical TiO 2 (phi 3X 3mm, which is formed by pressing solid TiO 2 with the particle size of 50-70 nm), uniformly stirring, standing and soaking for 16 hours; and drying the obtained material at 100 ℃ for 5 hours, and roasting at 350 ℃ for 8 hours to obtain the hydrogen chloride oxidation catalyst D.
The catalysts obtained in the above examples and comparative examples were evaluated by a fixed bed reactor under the above high space velocity reaction conditions, and the catalytic oxidation properties of hydrogen chloride were as shown in the following table 1.
The catalyst was evaluated using a fixed bed reactor with dimensions 500 mm. Phi. 20 mm. Times.3 mm. The reaction is carried out under normal pressure, 5.0+/-0.2 g of catalyst is filled, hydrogen chloride gas and oxygen are taken as reaction gases, and the reaction gases firstly pass through a mass flowmeter and then enter a fixed bed reactor after passing through a preheater; the reactor adopts three sections of heating in an electric heating mode, the reaction temperature is 350 ℃, the hydrogen chloride flow is 450ml/min, the oxygen flow is 800ml/min, namely the reaction space velocity is 15000L/(kg cat & h), the sample analysis is carried out after the reaction is stabilized for 1h, and the chlorine in the sample and the hydrogen chloride which is not completely reacted are respectively titrated by adopting an iodometry method and an acid-base titration method;
The specific operation steps are as follows: after the system is stable in operation, 100mL of 20% KI solution is prepared at regular intervals, a three-way valve at the outlet of an oxidation reactor is switched, the mixed gas after reaction is introduced into a constant-volume (100 mL) potassium iodide solution for 2 minutes, the absorption liquid is moved into a conical flask after absorption, and 0.1mol/L sodium thiosulfate standard solution is used for titration, and starch is used as an indicator; unreacted HC1 was then titrated with 0.1mol/L sodium hydroxide standard solution using phenolphthalein as an indicator.
TABLE 1
From the table above, the catalytic stability of the hydrogen chloride oxidation catalyst A, B obtained by the preparation method of the invention is higher than that of the catalyst C, D prepared by the conventional method, and the high-thermal conductivity composite carrier plays a significant role in improving the performance, especially the stability, of the supported ruthenium-based catalyst. The catalyst of the invention is used for continuous reaction for 200 hours at a high space velocity of 15000L/(kg cat. H), and the catalytic activity is basically not attenuated.
Claims (5)
1. A method for preparing a hydrogen chloride oxidation catalyst, comprising:
(1) Uniformly spraying TiO 2 slurry on a granular substrate to obtain an initial carrier, and drying the initial carrier at 60-120 ℃ to obtain a composite carrier, wherein the mass ratio of TiO 2 powder to water in the TiO 2 slurry is 1:0.7-1.8, and the mass ratio of TiO 2 powder to the substrate is 1:50-500 (0.002:0.1-1); the particle size of the TiO 2 powder is 20-80 nm; the heat conductivity coefficient of the substrate material is more than or equal to 10 W.m -1·K-1 at the temperature of 327 ℃; the drying time is 8-24 hours;
(2) And loading Ru element and additive metal element on the composite carrier, and roasting to obtain the hydrogen chloride oxidation catalyst.
2. The method for preparing a hydrogen chloride oxidation catalyst according to claim 1, wherein the substrate is a mixture of one or more of a SiC substrate, a BN substrate, and an α -Al 2O3 substrate.
3. The method of preparing a hydrogen chloride oxidation catalyst according to claim 1, wherein the substrate is a mixture of one or more of spherical particles, cylindrical particles, pie particles, net-like particles, ring-like particles, cross-like particles, and rice-like particles.
4. The method for preparing hydrogen chloride oxidation catalyst according to claim 1, wherein the additive metal element is one or more of Cr, si, ce, al, cu, ni, co, re and Ir.
5. The method for preparing a hydrogen chloride oxidation catalyst according to claim 1, wherein the loading is performed by an impregnation method or an alkali precipitation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210728337.9A CN115155632B (en) | 2022-06-24 | 2022-06-24 | Preparation method of hydrogen chloride oxidation catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210728337.9A CN115155632B (en) | 2022-06-24 | 2022-06-24 | Preparation method of hydrogen chloride oxidation catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115155632A CN115155632A (en) | 2022-10-11 |
| CN115155632B true CN115155632B (en) | 2024-05-10 |
Family
ID=83487008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210728337.9A Active CN115155632B (en) | 2022-06-24 | 2022-06-24 | Preparation method of hydrogen chloride oxidation catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115155632B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899558A (en) * | 2023-05-22 | 2023-10-20 | 康纳新型材料(杭州)有限公司 | High-heat-conductivity ruthenium catalyst with thermal stability and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338502A (en) * | 1996-10-31 | 1998-12-22 | Sumitomo Chem Co Ltd | Production of chlorine |
| CN101489919A (en) * | 2006-05-23 | 2009-07-22 | 拜尔材料科学股份公司 | Method for producing chlorine by gas phase oxidation |
| CN102941109A (en) * | 2012-11-16 | 2013-02-27 | 浙江大学 | Silicon carbide foam-containing noble metal catalyst |
| CN104785271A (en) * | 2014-01-21 | 2015-07-22 | 万华化学集团股份有限公司 | Preparation method of catalyst used for chlorine preparation, catalyst, and method used for preparing chlorine |
| CN105126930A (en) * | 2015-08-28 | 2015-12-09 | 烟台大学 | Preparing method of catalyst carrier and application of preparing method in hydrogen chloride catalytic oxidation |
| CN112543675A (en) * | 2018-06-06 | 2021-03-23 | 奈克斯赛瑞斯创新控股有限责任公司 | Catalyst support material comprising silicon carbide, catalyst comprising such support material and reaction process using said catalyst |
| CN113996291A (en) * | 2021-11-09 | 2022-02-01 | 康纳新型材料(杭州)有限公司 | Low-temperature HVOCs catalytic combustion catalyst, and preparation method and application thereof |
-
2022
- 2022-06-24 CN CN202210728337.9A patent/CN115155632B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338502A (en) * | 1996-10-31 | 1998-12-22 | Sumitomo Chem Co Ltd | Production of chlorine |
| CN101489919A (en) * | 2006-05-23 | 2009-07-22 | 拜尔材料科学股份公司 | Method for producing chlorine by gas phase oxidation |
| CN102941109A (en) * | 2012-11-16 | 2013-02-27 | 浙江大学 | Silicon carbide foam-containing noble metal catalyst |
| CN104785271A (en) * | 2014-01-21 | 2015-07-22 | 万华化学集团股份有限公司 | Preparation method of catalyst used for chlorine preparation, catalyst, and method used for preparing chlorine |
| CN105126930A (en) * | 2015-08-28 | 2015-12-09 | 烟台大学 | Preparing method of catalyst carrier and application of preparing method in hydrogen chloride catalytic oxidation |
| CN112543675A (en) * | 2018-06-06 | 2021-03-23 | 奈克斯赛瑞斯创新控股有限责任公司 | Catalyst support material comprising silicon carbide, catalyst comprising such support material and reaction process using said catalyst |
| CN113996291A (en) * | 2021-11-09 | 2022-02-01 | 康纳新型材料(杭州)有限公司 | Low-temperature HVOCs catalytic combustion catalyst, and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115155632A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5920750B2 (en) | Gold catalyst for ethanol oxidation and method for producing acetaldehyde and acetic acid using the same | |
| CN109718789B (en) | Core-shell structure supported catalyst and preparation method thereof | |
| CN110280250B (en) | Preparation method and application of zeolite imidazole framework material derived metal oxide | |
| CN115155632B (en) | Preparation method of hydrogen chloride oxidation catalyst | |
| CN106582655A (en) | Method for preparing high-dispersion easy-reduction loaded nickel-aluminum catalyst | |
| CN113385185A (en) | High-activity and selective perovskite type photo-thermal catalyst and preparation method and application thereof | |
| CN103201031A (en) | Novel glycerol dehydration catalyst and production method therefor | |
| CN108114730A (en) | Molybdenum-vanadium-tellurium-niobium catalytic agent composition | |
| CN100333834C (en) | Composite metal oxide for unsaturated aldehyde selective oxidation and preparing method thereof | |
| WO2005113140A1 (en) | Process for producing composite oxide and composite oxide catalyst | |
| JP4858266B2 (en) | Method for producing composite oxide catalyst | |
| CN101357751B (en) | Pulp bed reaction technique for producing chlorine gas by chloride hydrogen catalytic oxidation | |
| JP2005169311A (en) | Production method for complex oxide catalyst | |
| CN115999607A (en) | Preparation method and application of hydrogen chloride catalytic oxidation catalyst | |
| CN113398912B (en) | Catalyst for synthesizing dimethyl carbonate by alcoholysis of methyl carbamate | |
| CN111013580B (en) | Catalyst for preparing chlorine by hydrogen chloride oxidation and preparation method and application thereof | |
| CN105642318B (en) | The preparation method of catalyst of catalytic oxidation of hydrogen chloride for preparing chlorine gas and application | |
| WO2022126843A1 (en) | Ternary composite material having nio nanosheet/bimetallic cecuox microsheet core-shell structure, and preparation and application thereof | |
| JP7084378B2 (en) | Sulfur trioxide conversion method and hydrogen generation method | |
| CN114054100A (en) | Preparation and application of doped composite oxide catalyst | |
| JP6136436B2 (en) | Catalyst production method | |
| JP2017124366A (en) | Catalyst for ammonia decomposition and manufacturing method of hydrogen using catalyst | |
| CN115155558B (en) | Solid solution carrier and preparation method of ruthenium-based catalyst | |
| JPWO2007119607A1 (en) | Method for producing methacrolein and / or methacrylic acid | |
| JPS62191403A (en) | Production of chlorine |
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 |