Process for production of 1,1-dichloro-1-fluoroethane and 1-chloro-1-1-difluoroethane
    2.
    发明公开
    Process for production of 1,1-dichloro-1-fluoroethane and 1-chloro-1-1-difluoroethane 失效
    Verfahren zur Herstellung von 1,1-Dichlor-1-fluoroethan und 1-Chlor-1-1-difluorethan。

    公开(公告)号:EP0407689A1

    公开(公告)日:1991-01-16

    申请号:EP90104929.6

    申请日:1990-03-15

    CPC classification number: C07C19/12 C07C17/206

    Abstract: 1,1-Dichloro-1-fluoroethane and/or 1-chloro-1,1-­difluoroethane are selectively produced by fluorination of 1,1,1-trichloroethane. Conditions in a first reaction zone selected to preferentially form 1,1-dichloro-1-fluoro­ethane. The reaction effluent is split between a 1,1-­dichloro-1-fluoroethane recovery system, and a second reaction zone. The effluent from the latter is routed to 1-chloro-1,1-difluoroethane recovery system. The second reaction zone conditions are selected to form 1-chloro-1,1-­difluoroethane. The ratio of product formed by the overall process may be varied from up to 98% 1,1-dichloro-1-fluoro­ethane to greater than 98% 1-chloro-1,1-difluoroethane.

    Abstract translation: 通过1,1,1-三氯乙烷的氟化选择性地制备1,1-二氯-1-氟乙烷和/或1-氯-1,1-二氟乙烷。 选择优先形成1,1-二氯-1-氟乙烷的第一反应区中的条件。 反应流出物在1,1-二氯-1-氟乙烷回收系统和第二反应区之间分配。 将后者的流出物送至1-氯-1,1-二氟乙烷回收系统。 选择第二反应区条件以形成1-氯-1,1-二氟乙烷。 由整个方法形成的产物的比例可以从高达98%的1,1-二氯-1-氟乙烷变化到大于98%的1-氯-1,1-二氟乙烷。

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