发明名称 |
PROCESS FOR THE PREPARATION OF ALKYLENE GLYCOLS |
摘要 |
A process is disclosed for preparing an alkylene glycol by reacting an alkylene oxide with water in the presence of a catalyst comprising a polymeric organosiloxane ammonium salt having a silica-like skeleton and comprising units of the general formula (I) <IMAGE> (I) wherein R1 to R4, Y and x are as specified in claim 1. Preferred are the catalysts wherein the anion Y is selected from the group of carboxylates having from 1-20 carbon atoms, hydrogen carbonate, hydrogen sulphite, hydrogen phosphate and metalate. These catalysts exhibit an enhanced selectivity stability. |
申请公布号 |
EP0876315(A1) |
申请公布日期 |
1998.11.11 |
申请号 |
EP19960941027 |
申请日期 |
1996.11.22 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
VAN KRUCHTEN, EUGENE MARIE GODFRIED ANDRE |
分类号 |
B01J31/08;C07C29/10;C07C31/20 |
主分类号 |
B01J31/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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