发明名称 |
CONTINUOUS PROCESS FOR THE MANUFACTURE OF 3-HYDROXY PROPIONITRILE |
摘要 |
A fully continuous process for the manufacture of 3-hydroxypropionitrile, which process comprises (a) an addition reaction where acrylonitrile and water are reacted in the presence of a weak base to form a reaction mixture of 3-hydroxypropionitrile, bis(cyanoethyl)ether and unreacted acrylonitrile, which mixture is continuously neutralised during the transfer to the second process step; and (b) a reactive distillation where the bis(cyanoethyl)ether contained in the reaction mixture is fragmented into 3-hydroxypropionitrile and acrylonitrile and the 3-hydroxypropionitrile is subsequently separated and isolated. |
申请公布号 |
WO03087041(A1) |
申请公布日期 |
2003.10.23 |
申请号 |
WO2003EP03654 |
申请日期 |
2003.04.09 |
申请人 |
ROCHE VITAMINS AG;FELBER, ANDREAS;SPRUIJTENBURG, ROBERT |
发明人 |
FELBER, ANDREAS;SPRUIJTENBURG, ROBERT |
分类号 |
C07C253/30;C07C253/34;C07C255/12 |
主分类号 |
C07C253/30 |
代理机构 |
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代理人 |
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地址 |
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