Patent ID: 8003826
Filing Date: 2011-08-23
Classification: B01J,C07C

Abstract:
1. A process for preparing trimethylhexamethylenediamine, comprising aminatively hydrogenating a mixture comprising trimethylhexamethylenedinitrile in the presence of at least ammonia and hydrogen, wherein said hydrogenating is carried out in the presence of a shaped Raney-type hydrogenation catalyst produced by a production process comprising: 1) producing a catalyst precursor by application of a pulverulent alloy to a support material, wherein the alloy comprises at least one active metal and a second leachable alloy component selected from the group consisting of aluminium, silicon and zinc, 2) optionally drying and calcinating the shaped body obtained in 1), 3) activating the shaped body obtained in 1) or 2) by at least one of acid and alkali.