发明授权
US4172091A Process for the manufacture of .beta.-(dimethylamino)-propionitrile
失效
制备{62 - (二甲基氨基) - 丙腈的方法
- 专利标题: Process for the manufacture of .beta.-(dimethylamino)-propionitrile
- 专利标题(中): 制备{62 - (二甲基氨基) - 丙腈的方法
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申请号: US883757申请日: 1978-03-06
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公开(公告)号: US4172091A公开(公告)日: 1979-10-23
- 发明人: Jurgen Weber , Helmut Springer , Boy Cornils , Hans Feichtinger , Wolfgang Payer
- 申请人: Jurgen Weber , Helmut Springer , Boy Cornils , Hans Feichtinger , Wolfgang Payer
- 申请人地址: DEX Oberhausen
- 专利权人: Ruhrchemie Aktiengesellschaft
- 当前专利权人: Ruhrchemie Aktiengesellschaft
- 当前专利权人地址: DEX Oberhausen
- 优先权: DEX2709966 19770308
- 主分类号: C07C255/24
- IPC分类号: C07C255/24 ; C07C20060101 ; C07C67/00 ; C07C253/00 ; C08F20060101 ; C11D20060101 ; C07C120/00 ; C07C121/43
摘要:
An improvement in a process for the manufacture of .beta.-(dimethylamino)-propionitrile by contacting acrylonitrile with dimethylamine, the improvement residing in passing the reactants in countercurrent with respect to one another in a bubble column reactor and reacting them therein at a temperature between 25.degree. and 80.degree. C., preferably 40.degree. to 60.degree. C.
公开/授权文献
- US6145247A Fluid switch 公开/授权日:2000-11-14
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