	US 11,964,259 B2
	Catalyst composition for hydrogenating 4,4′-methylenedianiline derivatives and method for preparing 4,4′-methylene bis(cyclohexylamine) derivatives using the same
Chao-Huang Chen, Hsinchu (TW); Jyun-Da Wu, Xinfeng Township (TW); Tzong-Shyan Lu, Houlong Township (TW); and Ying-Chieh Lee, Taipei (TW)
Assigned to INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed by INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)
Filed on Dec. 28, 2020, as Appl. No. 17/135,515.
Application 17/135,515 is a continuation in part of application No. 16/731,783, filed on Dec. 31, 2019, abandoned.
Prior Publication US 2021/0197177 A1, Jul. 1, 2021
Int. Cl. C07C 209/72 (2006.01); B01J 8/02 (2006.01); B01J 21/10 (2006.01); B01J 23/46 (2006.01); B01J 35/61 (2024.01); B01J 37/02 (2006.01)

CPC B01J 23/464 (2013.01) [B01J 8/0242 (2013.01); B01J 21/10 (2013.01); B01J 35/615 (2024.01); B01J 37/0234 (2013.01); C07C 209/72 (2013.01); B01J 2523/821 (2013.01); B01J 2523/822 (2013.01)]

20 Claims

1. A catalyst composition for hydrogenating 4,4′-methylenedianiline derivatives, comprising:

a carrier comprising aluminum oxide and magnesium oxide, the carrier having a surface and an interior, wherein the magnesium oxide in the carrier has a weight percentage from 12% to 30%;

a rhodium-ruthenium active layer loaded on the surface of the carrier; and

a solvent comprising an organic amine.