Chlorination process
    2.
    发明授权
    Chlorination process 失效
    氯化工艺

    公开(公告)号:US06229057B1

    公开(公告)日:2001-05-08

    申请号:US08571886

    申请日:1996-01-11

    IPC分类号: C07C17013

    摘要: There is provided a process for the preparation of 1,1,1-trichlorotrifluororethane in which 1,1-dichloro-2,2,2-trifluoroethane is subjected to chlorination by bringing the 1,1-dichloro-2,2,2-trifluoroethane into contact with chlorine within a reaction vessel characterised in that the process is conducted in the liquid phasein the presence of a chemical free radical initiator under a pressure of from 1 to 20 bar and at a temperature within the range 50 to 120° C., and the product is separated from the reaction mixture by fractional distillation. The product is useful in the manufacture of insecticides.

    摘要翻译: 提供了制备1,1,1-三氯三氟乙烷的方法,其中1,1-二氯-2,2,2-三氟乙烷通过使1,1-二氯-2,2,2-三氟乙烷进行氯化, 三氟乙烷在反应容器内与氯接触,其特征在于该方法在1至20巴的压力和50至120℃的温度下,在化学自由基引发剂的存在下在液相中进行。 ,通过分馏将产物与反应混合物分离。 该产品可用于制造杀虫剂。