US 12,303,872 B2
Method for manufacturing ruthenium oxide-supported catalyst for preparing chlorine and catalyst manufactured thereby
Ga Ram Lee, Daejeon (KR); Won Yong Kim, Daejeon (KR); Eun Ji Woo, Daejeon (KR); Jeong Hwan Chun, Daejeon (KR); and Young Jin Cho, Daejeon (KR)
Assigned to HANWHA SOLUTIONS CORPORATION, Seoul (KR)
Appl. No. 17/416,513
Filed by HANWHA SOLUTIONS CORPORATION, Seoul (KR)
PCT Filed Dec. 10, 2019, PCT No. PCT/KR2019/017378
§ 371(c)(1), (2) Date Jun. 20, 2021,
PCT Pub. No. WO2020/130460, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10-2018-0167842 (KR), filed on Dec. 21, 2018.
Prior Publication US 2022/0072513 A1, Mar. 10, 2022
Int. Cl. B01J 21/04 (2006.01); B01J 6/00 (2006.01); B01J 21/06 (2006.01); B01J 23/46 (2006.01); B01J 35/50 (2024.01); B01J 35/61 (2024.01); B01J 37/08 (2006.01); C01B 7/04 (2006.01)
CPC B01J 23/462 (2013.01) [B01J 6/001 (2013.01); B01J 21/063 (2013.01); B01J 35/50 (2024.01); B01J 35/612 (2024.01); B01J 35/613 (2024.01); B01J 35/615 (2024.01); B01J 37/08 (2013.01); C01B 7/04 (2013.01)] 7 Claims
 
1. A method for manufacturing a ruthenium oxide-supported catalyst for preparing chlorine, wherein the ruthenium oxide-supported catalyst has a visual measurement system (VMS) measured value (S/R) of 0.5 or less,
the method comprising the steps of:
(a) dissolving a ruthenium compound in an organic solvent to prepare a solution and supporting said solution on at least one support selected from titania and alumina, wherein the organic solvent is 1-propanol;
(b) drying after the supporting; and
(c) calcining after the drying.