公开(公告)号：US11964259B2

公开(公告)日：2024-04-23

申请号：US17135515

申请日：2020-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Huang Chen ,  Jyun-Da Wu ,  Tzong-Shyan Lu ,  Ying-Chieh Lee

IPC: C07C209/72 ,  B01J8/02 ,  B01J21/10 ,  B01J23/46 ,  B01J35/61 ,  B01J37/02

CPC classification number: B01J23/464 ,  B01J8/0242 ,  B01J21/10 ,  B01J35/615 ,  B01J37/0234 ,  C07C209/72 ,  B01J2523/821 ,  B01J2523/822

Abstract: A catalyst composition for hydrogenating 4,4′-methylenedianiline derivatives is provided. The catalyst composition includes a carrier including aluminum oxide and magnesium oxide, a rhodium-ruthenium active layer loaded on the surface of the carrier, and a solvent including an organic amine. The weight percentage of magnesium oxide in the carrier is between 12% and 30%. A method for preparing 4,4′-methylene bis(cyclohexylamine) derivatives using the catalyst composition is also provided.