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    • 6. 发明申请
    • 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
    • 制备1,1,1,3,3,3-十六烷基和1,1,1,2,3,3-十六烷基和1,1,1,2,3,3,3 -HEPTAFLUOROPROPANE
    • WO2005037742A1
    • 2005-04-28
    • PCT/US2004/034447
    • 2004-10-13
    • E.I. DUPONT DE NEMOURS AND COMPANYRAO, Velliyur, Nott, MallikarjunaSIEVERT, Allen, Capron
    • RAO, Velliyur, Nott, MallikarjunaSIEVERT, Allen, Capron
    • C07C19/08
    • C07C17/23B01J23/002B01J23/26B01J27/12B01J37/26B01J2523/00C07C17/21C07C19/08C07C19/10B01J2523/27B01J2523/67
    • A process is disclosed for the manufacture of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa) and at least one 1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea). The process involves (a) reacting HF, Cl 2 , and at least one halopropene of the formula CX 3 CCl=CX 2 (where each X is independently F or Cl) to produce a product including both CF3CCl 2 CF 3 and CF 3 CClFCClF 2 ; (b) reacting CF 3 CCl 2 CF 3 and CF 3 CClFCClF2 produced in (a) with hydrogen to produce a product comprising CF 3 CH 2 CF 3 and at least one compound selected from the group consisting of CHF 2 CHFCF 3 , and CF 3 CHFCF 3 ; and (c) recovering from the product produced in (b), CF 3 CH 2 CF 3 and at least one compound selected from the group consisting of CHF 2 CHFCF 3 and CF 3 CHFCF 3 . In (a), the CF 3 CCl 2 CF 3 and CF 3 CClFCClF 2 are produced in the presence of a chlorofluorination catalyst including a ZnCr 2 O 4 /crystalline α-chromium oxide composition, a ZnCr 2 O 4 /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.
    • 公开了制备1,1,1,3,3,3-六氟丙烷(HFC-236fa)和至少一种1,1,1,2,3,3-六氟丙烷(HFC-236ea)和1 ,1,1,2,3,3,3-七氟丙烷(HFC-227ea)。 该方法包括(a)使HF,Cl 2和式CX 3 CCl = CX 2(其中每个X独立地为F或Cl)的至少一种卤代丙烯反应以产生包含CF 3 CCl 2 CF 3和CF 3 CClFCClF 2的产物; (b)使(a)中制备的CF 3 CCl 2 CF 3和CF 3 CClFCClFF与氢反应以产生包含CF 3 CH 2 CF 3和至少一种选自CHF 2 CHFCF 3和CF 3 CHFCF 3的化合物的产物; 和(c)从(b)中产生的产物,CF 3 CH 2 CF 3和至少一种选自CHF 2 CHFCF 3和CF 3 CHFCF 3的化合物中回收。 在(a)中,CF 3 CCl 2 CF 3和CF 3 CClFCClF 2是在含有ZnCr 2 O 4 /结晶α-氧化铬组合物,已用氟化剂处理的ZnCr 2 O 4 /结晶α-氧化铬组合物,卤化锌 /α-氧化铬组合物和/或已经用氟化剂处理的卤化锌/α-氧化铬组合物。