Agitated reactor and gas fluidized bed reactor in series for polymerization of vinyl chloride
    7.
    发明授权
    Agitated reactor and gas fluidized bed reactor in series for polymerization of vinyl chloride 失效
    用于氯乙烯聚合的系列中的催化反应器和气体流化床反应器

    公开(公告)号:US3622553A

    公开(公告)日:1971-11-23

    申请号:US3622553D

    申请日:1967-12-18

    Inventor: CINES MARTIN R

    CPC classification number: C08F14/06 Y10S526/921 C08F2/34

    Abstract: Vinyl chloride, alone or with a suitable comonomer, is continuously polymerized under liquid phase bulk conditions in an agitated reactor to a solid polymer content about 15 percent. A portion of the reaction effluent is continuously or periodically withdrawn from the agitated reactor and flushed into a fluidized bed reactor wherein vaporous vinyl chloride is employed as the fluidizing gas. Vinyl chloride gas is withdrawn and at least a portion thereof reintroduced into the fluidized reactor as the fluidizing gas. The excess vinyl chloride gas can be condensed and recycled to the agitated reactor. A polymer stream is withdrawn and passed through a monomer recovery system which can include a wash tower, a flash tank, drying conveyors and inert gas and/or vacuum strippers.

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