发明申请
- 专利标题： Process for the preparation of isocyanates
- 专利标题（中）： 异氰酸酯的制备方法
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申请号： US12378508申请日： 2009-02-17
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公开(公告)号： US20090209784A1公开(公告)日： 2009-08-20
- 发明人: Wolfgang Lorenz , Matthias Boehm , Richard Adamson , Friedhelm Steffens , Anke Hielscher
- 申请人： Wolfgang Lorenz , Matthias Boehm , Richard Adamson , Friedhelm Steffens , Anke Hielscher
- 申请人地址： DE Leverkusen
- 专利权人： Bayer MaterialScience AG
- 当前专利权人： Bayer MaterialScience AG
- 当前专利权人地址： DE Leverkusen
- 优先权： DE102008009761.6 20080219
- 主分类号： C07C263/10
- IPC分类号： C07C263/10
摘要：
The present invention relates to a process for the preparation of isocyanates by reacting the appropriate amines with phosgene, condensing the gas mixture thereby obtained, stripping the liquid phase thereby obtained and returning the solvent so retained in liquid form to the reaction stage. The gaseous constituents are then purified further in an absorption process.
公开/授权文献
- US07645900B2 Process for the preparation of isocyanates 公开/授权日：2010-01-12
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