发明申请
US20060116275A1 Process for removing and regenerating a double metal cyanide (dmc) catalyst from a polymer polyol
审中-公开
从聚合物多元醇中除去和再生双金属氰化物（dmc）催化剂的方法
- 专利标题： Process for removing and regenerating a double metal cyanide (dmc) catalyst from a polymer polyol
- 专利标题（中）： 从聚合物多元醇中除去和再生双金属氰化物（dmc）催化剂的方法
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申请号： US10541739申请日： 2003-10-17
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公开(公告)号： US20060116275A1公开(公告)日： 2006-06-01
- 发明人: Werner Hinz , Edward Dexheimer
- 申请人： Werner Hinz , Edward Dexheimer
- 申请人地址： US NJ Florham Park 07932
- 专利权人： BASF Corporation
- 当前专利权人： BASF Corporation
- 当前专利权人地址： US NJ Florham Park 07932
- 优先权： US10364788 20030211
- 国际申请： PCT/EP03/11505 WO 20031017
- 主分类号： B01J38/62
- IPC分类号： B01J38/62
摘要：
A method of removing and reclaiming a double metal cyanide (DMC) catalyst from a polyol is disclosed. A polymeric acid that is soluble in the polyol is introduced into the polyol during or after the polymerization reaction. The polymeric acid reacts with the double metal cyanide catalyst thereby causing the double metal cyanide catalyst and the polymeric acid to form an agglomeration in the polyol. The agglomeration is easily separated from the polyol via filtration, for example. The recovered agglomerated DMC catalyst can then be reconstituted using an acid solution.
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