发明授权
- 专利标题： Method of selectively synthesizing triethylenediamine
- 专利标题（中）： 选择性合成三亚乙基二胺的方法
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申请号： US10482644申请日： 2002-07-04
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公开(公告)号： US06958397B2公开(公告)日： 2005-10-25
- 发明人: Matthias Frauenkron , Bernd Stein , Ortmund Lang
- 申请人： Matthias Frauenkron , Bernd Stein , Ortmund Lang
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF AG
- 当前专利权人： BASF AG
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Novak Druce & Quigg, LLP
- 优先权： DE10132499 20010705
- 国际申请： PCT/EP02/07430 WO 20020704
- 国际公布： WO03/00449 WO 20030116
- 主分类号： B01J29/40
- IPC分类号： B01J29/40 ; C07B61/00 ; C07D487/08
摘要：
The present invention describes a process for the preparation of triethylenediamine by reacting piperazine over a zeolite catalyst which, in addition to SiO2, contains an oxide of at least one further divalent, trivalent or tetravalent metal M, wherein the zeolite has a molar Si/M ratio of >100. In particular, a zeolite of the ZSM-5 type is used. The use of the zeolites permits suppression of the undesired formation of the byproduct 2-ethylpiperazine and hence considerable simplification of the working-up, in combination with high piperazine conversions and a small excess of water.
公开/授权文献
- US20040236106A1 Method of selectively synthesising triethylenediamine 公开/授权日：2004-11-25
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