PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE, PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUORO-2-HALOGENO-3-CHLOROPROPANE, AND PROCESS FOR PRODUCING 1,1,1,2,3,3-HEXACHLOROPROPENE
申请人:DAIKIN INDUSTRIES, LIMITED
公开号:EP0677503A1
公开(公告)日:1995-10-18
A process for producing 1,1,1,3,3-pentafluoropropane by the reaction of 1,1,1,3,3-pentafluoro-2,3-dichloropropane with hydrogen fluoride in the presence of a noble metal catalyst; a process for producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane by the liquid-phase fluorination of a halogenopropene of general formula (I) (wherein X and Y represent each Cl or F) in the presence of antimony trihalide and/or antimony pentahalide with at least five times by mole as much hydrogen fluoride as the antimony halide; and a process for producing 1,1,1,2,3,3-hexachloropropene by the reaction of 1,1,1,2,2,3,3-heptachloropropane with an aqueous solution of an alkali metal hydroxide in the presence of a phase transfer catalyst. These processes can provide the target products at low cost in high yields on an industrial scale.
一种在
贵金属催化剂存在下通过 1,1,1,3,3-五
氟-2,3-
二氯丙烷与
氟化氢反应生产
1,1,1,3,3-五氟丙烷的工艺;一种生产 1,1,1,3,3-五
氟-2-卤代-3-
氯丙烷的工艺,其方法是在三卤 化
锑和/或五卤化
锑存在下,将通式(I)的卤代
丙烯(其中 X 和 Y 分别代表 Cl 或 F)液相
氟化,
氟化氢的摩尔数至少为卤化
锑的五倍;以及在相转移催化剂存在下,通过 1,1,1,2,2,3,3-
七氯丙烷与碱
金属氢氧化物
水溶液反应生产 1,1,1,1,2,3,3-
六氯丙烯的工艺。这些工艺可以在工业规模上以低成本、高产率提供目标产品。