PROCESS FOR THE PREPARATION OF 1,1,1,3,3,3-HEXAFLUOROPROPANE AND AT LEAST ONE OF 1,1,1,2,3,3-HEXAFLUOROPROPANE AND 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE

摘要

1,1,1,3,3,3-hexafluoropropane propane (HFC-236fa) and at least one 1,1,1,2,3,3- hexafluoro (HFC-236ea), and 1, 1 , a method for producing propane (HFC-227ea) is disclosed in 1,2,3,3,3- heptafluoropropane. The method (a) HF, halo-propene of Cl _2, and 1 the formula CX ₃ CCl = CX ₂ or more species by reacting (wherein each X is independently F or Cl) CF ₃ CCl ₂ CF ₃ and CF ₃ CClFCClF preparing a product containing both _2; (b) (a) the CF ₃ CCl ₂ CF ₃ and CF ₃ by reaction with hydrogen in the CClFCClF _2, CHF ₂ CHFCF ₃ and CF ₃ CHFCF ₃ or more one selected from the group consisting of compounds and CF ₃ CH ₂ prepared in producing a product comprising CF ₃ and; (c) involves (b) recovering the CHF ₂ CHFCF ₃ and CF ₃ CHFCF ₃ 1 or more kinds of compounds and CF ₃ CH ₂ CF ₃ is selected from the group consisting of from the manufacturing product in. In _{(a), CF 3 CCl 2} CF 3 and CF ₃ CClFCClF ₂ is ZnCr ₂ O ₄ / crystalline alpha-oxidized chromium composition, the fluorine treated with ZnCr agent ₂ O ₄ / crystalline alpha-oxidized chromium composition, halogenated zinc / alpha - it is produced in the chloro-fluorinated catalyst comprising a chromium oxide composition-chromium oxide composition, and (or) halogenated zinc / alpha treated with a fluorinating agent. ; 1,1,1,3,3,3-hexafluoro-propane, 1,1,1,2,3,3- hexafluoropropane, 1,1,1,2,3,3,3- heptafluoropropane a rope plate, chloro fluorination catalyst