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13 条记录 (耗时 0.012 秒)

    Process for the selective dehydrohalogenation of an admixture of alkylhalides
    4.
    发明授权
    Process for the selective dehydrohalogenation of an admixture of alkylhalides 失效
    烷基卤化物的混合物的选择性脱卤化氢的方法

    公开(公告)号：US4982024A

    公开(公告)日：1991-01-01

    申请号：US456969

    申请日：1989-12-26

    申请人： Kaung-Far Lin ,  Joseph A. Bossier ,  George H. Ransford

    发明人： Kaung-Far Lin ,  Joseph A. Bossier ,  George H. Ransford

    IPC分类号： C07C1/30

    CPC分类号： C07C1/30 ,  Y02P20/127 ,  Y10S203/06

    摘要： A process for the dehydrohalogenation of a feed comprised of an admixture of primary, secondary and tertiary alkylhalides to selectively convert the secondary and tertiary alkylhalides of the admixture to olefins by dehydrohalogenation, with minimal conversion, if any, of the primary alkylhalides. The reaction, which is particularly applicable to the selective dehydrobromination of an admixture of primary, secondary and tertiary alkylbromides, is carried out in a distillation-reaction zone, column, or distillation-reactor, to simultaneously (i) convert the secondary and tertiary alkylbromides to olefins and hydrogen bromide, and (ii) separate the olefins and hydrogen bromide, (iii) and the primary alkyl bromides, from the reaction mixture.

    Method for producing hexabromocyclododecane
    8.
    发明授权
    Method for producing hexabromocyclododecane 失效
    六溴环十二烷生产方法

    公开(公告)号：US5043492A

    公开(公告)日：1991-08-27

    申请号：US569867

    申请日：1990-08-20

    申请人： George H. Ransford

    发明人： George H. Ransford

    IPC分类号： C07C17/02

    CPC分类号： C07C17/02 ,  C07C2101/20

    摘要： A process for obtaining an improved yield of hexabromocyclododecane by utilizing a solvent in the reaction mass containing a minor amount of water.

    摘要翻译： 通过在含有少量水的反应物料中利用溶剂获得六溴代环十二烷产率提高的方法。