- 专利标题: VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
- 专利标题(英): Method for the production of isocyanates
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申请号: EP08803255.2申请日: 2008-08-27
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公开(公告)号: EP2197836A1公开(公告)日: 2010-06-23
- 发明人: RUMPF, Bernd , BOCK, Michael , FIENE, Martin , STROEFER, Eckhard
- 申请人: BASF SE
- 申请人地址: 67056 Ludwigshafen DE
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: 67056 Ludwigshafen DE
- 优先权: EP07115380 20070831
- 国际公布: WO2009027418 20090305
- 主分类号: C07C263/10
- IPC分类号: C07C263/10 ; C07C263/20 ; C07C265/14
摘要:
The invention relates to a method for producing polyisocyanates, comprising the following steps: a) amines are reacted with phosgene; b) hydrogen chloride, excess phosgene, and, if necessary, the solvent are separated from the reaction mixture; c) the liquid mixture from step b) is separated into a liquid and a gaseous phase; d) the gaseous phase from step c) is processed into the polyisocyanate.
公开/授权文献
- EP2197836B1 VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN 公开/授权日:2013-04-24
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