A process for the manufacture of CF3CH2CHF2 and CF3CH2CF3 is disclosed. The process involves (a) reacting HF and at least one halopropene of the formula CX3CCl=CClX (where each X is independently F or Cl) to produce a product including both CF3CCl=CF2 and CF3CHClCF3; (b) reacting CF3CCl=CF2 and CF3CHClCF3 produced in (a) with hydrogen to produce a product including both CF3CH2CHF2 and CF3CH2CF3; and (c) recovering CF3CH2CHF2 and CF3CH2CF3 from the product produced in (b). In (a), the CF3CCl=CF2 and CF3CHClCF3 are produced in the presence of a fluorination catalyst including a ZnCr2O4/crystalline α-chromium oxide composition, a ZnCr2O4/crystalline α-chromium oxide composition which has been treated with a fluorinating agent, a zinc halide/α-chromium oxide composition and/or a zinc halide/α-chromium oxide composition which has been treated with a fluorinating agent.
揭示了一种制造CF3CH2CHF2和CF3CH2CF3的过程。该过程包括(a)反应HF和至少一种卤代
丙烯的公式CX3CCl = CClX(其中每个X独立地为F或Cl)以产生包括CF3CCl =
CF2和CF3CHClCF3的产物; (b)将在(a)中产生的CF3CCl =
CF2和CF3CHClCF3与氢反应以产生包括CF3CH2CHF2和CF3CH2CF3的产物; 和(c)从(b)中产生的产物中回收CF3CH2CHF2和CF3CH2CF3。在(a)中,CF3CCl =
CF2和CF3CHClCF3是在包括ZnCr2O4 / 晶体α-
铬氧化物组成的
氟化催化剂的存在下产生的,该
氟化催化剂经过
氟化剂处理的ZnCr2O4 / 晶体α-
铬氧化物组成,
锌卤化物 / α-
铬氧化物组成和/或经过
氟化剂处理的
锌卤化物/α-
铬氧化物组成。