Invention Grant
- Patent Title: Method for the production of 2-pyrrolidone
- Patent Title (中): 2-吡咯烷酮生产方法
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Application No.: US10487452Application Date: 2002-08-30
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Publication No.: US07164031B2Publication Date: 2007-01-16
- Inventor: Martin Rudloff , Peter Stops , Erhard Henkes , Helmut Schmidtke , Rolf-Hartmuth Fischer , Manfred Julius , Rolf Lebkücher , Karl-Heinz Ross
- Applicant: Martin Rudloff , Peter Stops , Erhard Henkes , Helmut Schmidtke , Rolf-Hartmuth Fischer , Manfred Julius , Rolf Lebkücher , Karl-Heinz Ross
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Novak Druce & Quigg, LLP
- Priority: DE10143824 20010907
- International Application: PCT/EP02/09721 WO 20020830
- International Announcement: WO03/022811 WO 20030320
- Main IPC: C07D207/267
- IPC: C07D207/267
Abstract:
A process for continuously preparing 2-pyrrolidone by reacting gamma-butyrolactone with ammonia in the liquid phase in the presence of water, wherein the reaction is carried out at a temperature of from 275 to 300° C. and an absolute pressure of from 140 to 180 bar.
Public/Granted literature
- US20040242900A1 Method for the production of 2-pyrrolidone Public/Granted day:2004-12-02
Information query
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