发明授权
US5773525A Process of oxyalkylation employing solid, heterogeneous oxyalkylation
catalysts
失效
使用固体，异相烷氧基化催化剂进行烷氧基化的方法
- 专利标题： Process of oxyalkylation employing solid, heterogeneous oxyalkylation catalysts
- 专利标题（中）： 使用固体，异相烷氧基化催化剂进行烷氧基化的方法
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申请号： US880040申请日： 1997-06-20
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公开(公告)号： US5773525A公开(公告)日： 1998-06-30
- 发明人: Jose F. Pazos
- 申请人： Jose F. Pazos
- 申请人地址： DE Greenville
- 专利权人： Arco Chemical Technology, L.P.
- 当前专利权人： Arco Chemical Technology, L.P.
- 当前专利权人地址： DE Greenville
- 主分类号： B01J21/10
- IPC分类号： B01J21/10 ; C08G65/26 ; C08G65/28
摘要：
Oligomeric polyoxyalkylene polyethers are prepared by oxyalkylating a low molecular weight hydroxyl-functional starter molecule with one or more alkylene oxides in the presence of a solid, heterogeneous magnesium oxide catalyst. The catalyst is readily and rapidly removed by simple filtration to yield a polyether with minimal metal ion content suitable for use directly or as a starter molecule for further double metal cyanide complex catalyzed oxyalkylation.
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