发明授权
US06888006B2 Method for processing pyrollidone and n-vinyl pyrollidone residues
有权
吡咯烷酮和正乙烯基吡咯烷酮残留物的处理方法
- 专利标题: Method for processing pyrollidone and n-vinyl pyrollidone residues
- 专利标题(中): 吡咯烷酮和正乙烯基吡咯烷酮残留物的处理方法
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申请号: US10275564申请日: 2001-05-10
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公开(公告)号: US06888006B2公开(公告)日: 2005-05-03
- 发明人: Herbert Helfert , Martin Schmidt-Radde , Gerhard Laqua , Ulrich Eiden , Stephan Scholl , Christoph Übler
- 申请人: Herbert Helfert , Martin Schmidt-Radde , Gerhard Laqua , Ulrich Eiden , Stephan Scholl , Christoph Übler
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Novak, Druce, DeLuca & Quigg
- 国际申请: PCTEP01/05351 WO 20010510
- 国际公布: WO0185682 WO 20011115
- 主分类号: B01D3/14
- IPC分类号: B01D3/14 ; B01J3/00 ; C07D201/16 ; C07D207/26 ; C07D207/267
摘要:
A process for working up residues from the preparation of pyrrolidone and/or N-vinylpyrrolidone comprises subjecting the residues to a thermolysis.
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