Production and purification processes
    1.
    发明申请
    Production and purification processes 审中-公开
    生产和净化过程

    公开(公告)号:US20060161029A1

    公开(公告)日:2006-07-20

    申请号:US11323365

    申请日:2005-12-29

    IPC分类号: C07C17/32 C07C17/26

    摘要: Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl chloride to produce 1,1,1,3,3-pentachloropropane; (2) dehydrochlorinating the 1,1,1,3,3-pentachloropropane with a Lewis acid catalyst to produce 1,1,3,3-tetrachloropropene; (3) fluorinating the 1,1,3,3-tetrachloroprope-ne to produce 1-chloro-3,3,3-trifluoropropene; (4) fluorinating the 1-chloro-3,3,3-trifluoropropene to produce a product mixture containing 1,1,1,3,3-pentafluoropropane; and (5) separating 1,1,1,3,3-pentafluoropro-pane from by-products.

    摘要翻译: 提供了生产和提纯卤代化合物和中间产物1,1,1,3,3-五氟丙烷的方法和材料。 在优选的实施方案中,方法步骤包括:(1)使四氯化碳与氯乙烯反应,生成1,1,1,3,3-五氯丙烷; (2)用路易斯酸催化剂对1,1,1,3,3-五氯丙烷进行脱氯化氢以制备1,1,3,3-四氯丙烯; (3)使1,1,3,3-四氯丙炔氟化,生成1-氯-3,3,3-三氟丙烯; (4)氟化1-氯-3,3,3-三氟丙烯以制备含有1,1,1,3,3-五氟丙烷的产物混合物; 和(5)从副产物中分离1,1,1,3,3-五氟平板。