发明公开
- 专利标题: Method for high temperature phase separation of solution containing polymers
- 专利标题(中): 高分子聚合物溶液分离方法
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申请号: EP85308977申请日: 1985-12-10
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公开(公告)号: EP0184935A3公开(公告)日: 1986-09-24
- 发明人: Cozewith, Charles , Hazelton, Ronald Lewis
- 申请人: EXXON RESEARCH AND ENGINEERING COMPANY
- 专利权人: EXXON RESEARCH AND ENGINEERING COMPANY
- 当前专利权人: EXXON RESEARCH AND ENGINEERING COMPANY
- 优先权: US679822 19841210
- 主分类号: C08F06/12
- IPC分类号: C08F06/12
摘要:
@ A process is disclosed for recovering polymer from a solution of the polymer in a solvent by high temperature phase separation in which carbon dioxide is added to the solution, the solution and the added hydrocarbon are subjected to a temperature and pressure so that one liquid phase is formed and the pressure is adjusted to form two phases, namely, a polymer-lean liquid phase and a polymer-rich liquid phase. The polymer-rich liquid phase is separated from the polymer-lean liquid phase, and the polymer is then recovered from the polymer-rich liquid phase.
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