发明授权
- 专利标题： Demulsification of bitumen emulsions using polymers of diquaternary ammonium monomers containing hydroxyl groups
- 专利标题（中）： 使用含有羟基的二季铵单体的聚合物对沥青乳液进行乳化
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申请号： US326463申请日： 1981-12-02
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公开(公告)号： US4387017A公开(公告)日： 1983-06-07
- 发明人: Edward E. McEntire , David R. McCoy
- 申请人： Edward E. McEntire , David R. McCoy
- 申请人地址： NY White Plains
- 专利权人： Texaco Inc.
- 当前专利权人： Texaco Inc.
- 当前专利权人地址： NY White Plains
- 主分类号： C10G33/04
- IPC分类号： C10G33/04
摘要：
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of diquaternary ammonium monomers containing hydroxyl groups. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
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