US 12,472,486 B2
Molding catalyst for hydrogen chloride oxidation reaction, and method for producing same
Jeong Hwan Chun, Daejeon (KR); Seong Ho Yun, Daejeon (KR); and Young Jin Cho, Daejeon (KR)
Assigned to HANWHA SOLUTIONS CORPORATION, Seoul (KR)
Appl. No. 17/790,287
Filed by HANWHA SOLUTIONS CORPORATION, Seoul (KR)
PCT Filed Oct. 19, 2020, PCT No. PCT/KR2020/014260
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/137400, PCT Pub. Date Jul. 8, 2021.
Claims priority of application No. 10-2019-0179867 (KR), filed on Dec. 31, 2019.
Prior Publication US 2023/0072554 A1, Mar. 9, 2023
Int. Cl. B01J 21/04 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/12 (2006.01); B01J 23/63 (2006.01); B01J 35/37 (2024.01); B01J 35/40 (2024.01); B01J 35/50 (2024.01); B01J 35/61 (2024.01); B01J 35/63 (2024.01); B01J 35/64 (2024.01)
CPC B01J 23/63 (2013.01) [B01D 53/8659 (2013.01); B01D 53/945 (2013.01); B01J 21/063 (2013.01); B01J 35/37 (2024.01); B01J 35/40 (2024.01); B01J 35/50 (2024.01); B01J 35/613 (2024.01); B01J 35/615 (2024.01); B01J 35/635 (2024.01); B01J 35/647 (2024.01); B01D 2255/1026 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/20707 (2013.01); B01D 2256/26 (2013.01); B01D 2257/2042 (2013.01); B01D 2258/02 (2013.01); B01J 2231/70 (2013.01); B01J 2523/3712 (2013.01); B01J 2523/47 (2013.01); B01J 2523/821 (2013.01)] 8 Claims
 
1. A method for producing a molding catalyst for hydrogen chloride oxidation reaction, the method comprising:
a first supporting step of supporting a solution, in which a precursor of at least one selected from heterogeneous materials is dissolved, on a support;
a step of obtaining a solid after performing primary drying, calcining, and cooling after the first supporting step;
a step of preparing a molding support by mixing and molding an organic binder, an inorganic binder, and water with the solid;
a step of preparing a molded body after performing secondary drying, calcining, and cooling on the molding support;
a second supporting step of preparing a solution in which a ruthenium precursor is dissolved and supporting the molded body; and
a step of performing tertiary drying and calcining after the second supporting step-,
wherein the molding support includes at least one selected from a group consisting of alumina, titania, and zirconia,
wherein the organic binder includes at least one selected from a group consisting of methyl cellulose, hydroxyethyl cellulose, sodium carboxymethyl cellulose, purified starch, dextrin, polyvinyl alcohol, polyvinyl butyral, polymethyl methacrylate, polyethylene glycol, paraffin, wax emulsion, and microcrystalline wax,
wherein the inorganic binder includes at least one selected from a group consisting of alumina sol, silica sol, titania sol, and zirconia sol,
wherein the heterogeneous material includes ceria.