发明授权
US4892977A Preparation of nonionic surfactants by oxyalkylation with a magnesium
catalyst
失效
用镁催化剂通过烷氧基化制备非离子表面活性剂
- 专利标题： Preparation of nonionic surfactants by oxyalkylation with a magnesium catalyst
- 专利标题（中）： 用镁催化剂通过烷氧基化制备非离子表面活性剂
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申请号： US205754申请日： 1988-06-13
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公开(公告)号： US4892977A公开(公告)日： 1990-01-09
- 发明人: Edward C. Y. Nieh
- 申请人： Edward C. Y. Nieh
- 申请人地址： NY White Plains
- 专利权人： Texaco Chemical Company
- 当前专利权人： Texaco Chemical Company
- 当前专利权人地址： NY White Plains
- 主分类号： B01J31/02
- IPC分类号： B01J31/02 ; C07C41/03
摘要：
Nonionic surfactants containing a narrow molecular weight distribution is obtained by the use of a magnesium-containing catalyst which comprises reacting a reactive hydrogen compound selected from the group consisting of monohydric alcohols having from about 6 to 30 carbon atoms with an alkylene oxide having from 2-4 carbon atoms at a temperature at which the reaction proceeds in the presence of at least a catalytic amount of a particular magnesium catalyst containing phosphorus.