发明授权
- 专利标题: Method for producing TETA by means of EDDN
- 专利标题(中): 通过EDDN生产TETA的方法
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申请号: US12529072申请日: 2008-02-28
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公开(公告)号: US08299249B2公开(公告)日: 2012-10-30
- 发明人: Kirsten Dahmen , Alfred Oftring , Katrin Baumann , Randolf Hugo , Thilo Hahn , Johann-Peter Melder
- 申请人: Kirsten Dahmen , Alfred Oftring , Katrin Baumann , Randolf Hugo , Thilo Hahn , Johann-Peter Melder
- 申请人地址: DE
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE
- 代理机构: Connolly Bove Lodge & Hutz LLP
- 优先权: EP07103295 20070301
- 国际申请: PCT/EP2008/052413 WO 20080228
- 国际公布: WO2008/104582 WO 20080904
- 主分类号: C07D241/04
- IPC分类号: C07D241/04 ; C07D295/00
摘要:
The invention relates to a process for preparing triethylenetetramine (TETA), which, comprises the following steps: a) reaction of ethylenediamine (EDA) with formaldehyde and hydrocyanic acid (HCN) in a molar ratio of EDA to formaldehyde to HCN of from 1:1.5:1.5 to 1:2:2 to give ethylenediaminediacetonitrile (EDDN), b) hydrogenation of the EDDN obtained in step a) in the presence of a catalyst and a solvent.
公开/授权文献
- US20100121064A1 NOVEL METHOD FOR PRODUCING TETA BY MEANS OF EDDN 公开/授权日:2010-05-13
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