US 12,404,228 B2
Method of producing adipic acid
Chae Hwan Hong, Seoul (KR); and Hyeon Gook Kim, Daejeon (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
Filed on Feb. 17, 2023, as Appl. No. 18/111,018.
Claims priority of application No. 10-2022-0113326 (KR), filed on Sep. 7, 2022.
Prior Publication US 2024/0092717 A1, Mar. 21, 2024
Int. Cl. C07C 51/09 (2006.01); C07C 67/327 (2006.01)
CPC C07C 51/09 (2013.01) [C07C 67/327 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of producing adipic acid, comprising:
obtaining a reaction solution by mixing a glucaric acid potassium salt, a solvent, an acid catalyst, and a catalyst for deoxydehydration;
obtaining alkyl adipate by adding hydrogen gas to the reaction solution and performing a deoxydehydration (DODH) reaction; and
obtaining adipic acid by mixing the alkyl adipate with an acid solution and performing a hydrolysis reaction.