CONTINUOUS PROCESS FOR THE HYDROGENATION OF 3-CYANO-3,5,5-TRIMETHYL-CYCLOHEXYLIMINE
申请人:Ernst Martin
公开号:US20100036168A1
公开(公告)日:2010-02-11
The present invention relates to a continuous process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine by reacting a feed stream comprising 3-cyano-3,5,5-trimethylcyclohexylimine with hydrogen and ammonia over hydrogenation catalysts, wherein the basicity of the reaction mixture is increased during the reaction by bringing the reaction mixture into contact with a basic compound which is not ammonia and/or a basic catalyst after part of the 3-cyano-3,5,5-trimethylcyclohexylimine has been reacted.
本发明涉及一种连续制备3-氨基甲基-3,5,5-三甲基环己基胺的方法,通过在氢化催化剂上反应含有3-氰基-3,5,5-三甲基环己基亚胺的进料流与氢气和氨气反应,反应过程中,当部分3-氰基-3,5,5-三甲基环己基亚胺反应后,通过将反应混合物与非氨基性碱性化合物和/或碱性催化剂接触,提高反应混合物的碱性。