发明授权
US07256313B2 Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio
有权
用于制备具有高顺/异构体比例的异佛尔酮二胺（ipda，3-氨基甲基-3,5,5-三甲基 - 环己胺）的方法
- 专利标题： Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio
- 专利标题（中）： 用于制备具有高顺/异构体比例的异佛尔酮二胺（ipda，3-氨基甲基-3,5,5-三甲基 - 环己胺）的方法
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申请号： US10522994申请日： 2003-08-06
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公开(公告)号： US07256313B2公开(公告)日： 2007-08-14
- 发明人: Frank Funke , Thomas Hill , Jobst Rüdiger Von Watzdorf , Wolfgang Mattmann , Wolfgang Harder , Erhard Henkes , Gerd Littmann , Manfred Julius
- 申请人： Frank Funke , Thomas Hill , Jobst Rüdiger Von Watzdorf , Wolfgang Mattmann , Wolfgang Harder , Erhard Henkes , Gerd Littmann , Manfred Julius
- 申请人地址： DE
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DE
- 代理机构： Connolly Bove Lodge & Hutz LLP
- 优先权： DE10236675 20020809
- 国际申请： PCT/EP03/08722 WO 20030806
- 国际公布： WO2004/020386 WO 20040311
- 主分类号： C07C209/84
- IPC分类号： C07C209/84 ; C07C209/86 ; C07C209/88
摘要：
The invention relates to processes for preparing 3-aminomethyl-3,5,5-trimethylcyclo-hexylamine (isophoronediamine, IPDA) having a high cis/trans isomer ratio. IPDA having a cis/trans isomer ratio in the range from 63/37 to 66/34 can be obtained in any desired cis/trans isomer ratio, irrespective of temperature, by reacting IPDA with H2 and NH3 in the presence of a hydrogenation catalyst. IPDA having a cis/trans isomer ratio of at least 73/27 which is an important starting material for the synthesis of polyurethanes and polyamides can be obtained by combining this isomerization process with distillative processes.