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    • 8. 发明专利
    • Method for removing solvent from polymer solution
    • 从聚合物溶液中除去溶剂的方法
    • JP2005029765A
    • 2005-02-03
    • JP2003273735
    • 2003-07-11
    • Internat Center For Environmental Technol TransaferJsr CorpJsr株式会社財団法人国際環境技術移転研究センター
    • KATAYAMA NOBUAKIISHII KATSUNORIKUMAI NARITSUGU
    • B01D3/00B01F7/00B01F15/00B01J19/18C08F6/10
    • B01F7/00466B01J19/0066B01J19/1862B01J2219/00065C08C2/06C08F6/10
    • PROBLEM TO BE SOLVED: To provide a method for removing a solvent from a polymer solution in a good efficiency.
      SOLUTION: This method for removing the solvent using a device equipped with a piping for connecting the gas phase part of a rear stage side solvent-removing tank with the liquid phase part of a front stage side solvent-removing tank and an openness-adjusting means (a pressure-adjusting valve, etc.) arranged at the piping, and removing the solvent (cyclohexane, etc.) from the polymer solution (ethylene-α-olefin-non-conjugated diene copolymer rubber, etc.) with a steam-stripping, etc., is provided by adjusting pressure so that the pressure difference between each of the gas phase parts of the solvent-removing tanks at the rear stage side and front stage side becomes larger by 0.005-0.6 MPa (especially by 0.05-0.3 MPa) than that in the case of wholly opening the openness-adjusting means. Also, in another method for removing the solvent, the pressure is adjusted so that the pressure difference of each the gas phase parts of the solvent-removing tanks at the rear stage side and front stage side becomes ≥0.036 MPa (especially, ≥0.1 MPa).
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种以高效率从聚合物溶液中除去溶剂的方法。 解决方案:使用配备有用于将后段侧溶剂除去槽的气相部分与前段侧溶剂除去槽的液相部分连接的配管的装置以及开放性 - 调节装置(调压阀等),并从聚合物溶液(乙烯-α-烯烃 - 非共轭二烯共聚物橡胶等)中除去溶剂(环己烷等)与 通过调节压力来提供蒸汽剥离等,使得后段侧和前段侧的溶剂除去槽的各气相部分之间的压力差变大0.005〜0.6MPa(特别是通过 0.05-0.3MPa)比完全打开开度调节装置的情况。 此外,在另一种除去溶剂的方法中,调节压力,使得后段侧和前段侧的各溶剂除去槽的气相部分的压差变为≥0.036MPa(特别是≥0.1MPa )。 版权所有(C)2005,JPO&NCIPI