Separating p-dichlorobenzene from n-methyl pyrrolidone by steam distillation
    13.
    发明授权
    Separating p-dichlorobenzene from n-methyl pyrrolidone by steam distillation 失效
    通过蒸汽蒸馏从N-甲基吡咯烷酮中分离出对二氯苯

    公开(公告)号:US3658659A

    公开(公告)日:1972-04-25

    申请号:US3658659D

    申请日:1969-09-24

    Inventor: COTTLE JOHN E

    CPC classification number: C07D207/267 C07C17/38 C07D201/16

    Abstract: A process for the recovery of p-dichlorobenzene and Nmethylpyrrolidone from the reactor effluent from the production of polyphenylene sulfide from which the polyphenylene sulfide has been separated involving a steam distillation step to recover the p-dichlorobenzene and a fractionation step to recover the Nmethylpyrrodone.

    Abstract translation: 从生产聚苯硫醚的反应器流出物中回收对二氯苯和N-甲基吡咯烷酮的方法,其中通过蒸汽蒸馏步骤分离聚苯硫醚以回收对二氯苯和分馏步骤以回收N 甲基吡咯烷酮。

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