公开(公告)号：WO2015013427A1

公开(公告)日：2015-01-29

申请号：PCT/US2014/047851

申请日：2014-07-23

Applicant: INVISTA TECHNOLOGIES S.à.r.l.

Inventor： TOZER, Ferdie J. ,  FORSYTH, Stewart

IPC: C07C209/48 ,  C07C211/09 ,  C07C211/12

CPC classification number: C07C209/48 ,  C07C211/12 ,  C07C211/09

Abstract: Disclosed is a process for extending the useful life of a hydrogenation catalyst for making diamines in which 2-methylglutaronitrile and adiponitrile are charged separately to the catalyst in sequence with an intervening step of contacting the catalyst with hydrogen and ammonia at elevated temperature.

Abstract translation: 公开了一种延长制备二胺的氢化催化剂的使用寿命的方法，其中将2-甲基戊二腈和己二腈分别加入到催化剂中，并在高温下使催化剂与氢气和氨接触的中间步骤。