• 专利标题: VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
  • 专利标题(英): Method for the production of isocyanates
  • 申请号: EP08803255.2
    申请日: 2008-08-27
  • 公开(公告)号: EP2197836A1
    公开(公告)日: 2010-06-23
  • 发明人: RUMPF, BerndBOCK, MichaelFIENE, MartinSTROEFER, 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
VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
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.
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