申请人:Galle Markus
公开号:US20130253226A1
公开(公告)日:2013-09-26
The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or, in abbreviated form, IPDA, by: I. preparation of isophorone by catalyzed aldol condensations with acetone as reactant; II. reaction of isophorone with HCN to form isophoronenitrile (IPN, 3-cyano-3,5,5-trimethylcyclohexanone); III. catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminative hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, hereinafter called isophoronenitrile or, in abbreviated form, IPN, to give the isophoronediamine.
该发明涉及一种改进的制备3-氨甲基-3,5,5-三甲基环己胺的方法,以下简称异佛酮二胺或简称IPDA,具体步骤包括:I. 用丙酮作为反应物进行催化醛缩制备异佛酮;II. 将异佛酮与HCN反应形成异佛酮腈(IPN,3-氰基-3,5,5-三甲基环己酮);III. 对3-氰基-3,5,5-三甲基环己酮进行催化氢化和/或催化还原胺化(也称为氨基氢化)处理,以下简称异佛酮腈或简称IPN,制得异佛酮二胺。