Reaction of hexafluoropropene with halogenoalkanes
作者:Robert N. Haszeldine、Ronald Rowland、Anthony E. Tipping、Geoffrey Tyrrell
DOI:10.1016/s0022-1139(00)81246-4
日期:1982.10
Insertion of hexafluoropropene under thermal and/ or photochemical conditions occurs into C-H bonds of the halogenomethanes MeCl, CH2Cl2, CHCl3, MeF, CH2F2 and CHF2Cl and the fluoroethanes EtF, MeCHF2 and MeCF3, into CH and CCl bonds of the monochloroalkanes EtCl, MeCHFCl, prnCl, priCl, ButCl and BuiCl and into CCl bonds of allyl chloride and the chloroalkanes CH2ClCH2Cl, MeCHCl2, CH2ClCHCl2 and
在热和/或光
化学条件下,
六氟丙烯插入卤代
甲烷MeCl,CH 2 Cl 2,CHCl 3,MeF,CH 2 F 2和CHF 2 Cl的CH键中,以及
氟代
乙烷EtF,MeCHF 2和MeCF 3插入C中。在monochloroalkanes ETCL,MeCHFCl,PR的H和CCl键ñ
氯,PR我
氯,卜吨Cl和卜我Cl和成烯丙基
氯CCl的键和
氯代CH 2 CLCH 2
氯,MeCHCl 2,CH 2 ClCHCl 2和MeCCl 3。
[EN] 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<br/>[FR] PROCEDE POUR PREPARER DU 1,1,1,3,3,3-HEXAFLUOROPROPANE, DU 1,1,1,2,3,3-HEXAFLUOROPROPANE ET/OU DU 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE
申请人:DU PONT
公开号:WO2005037742A1
公开(公告)日:2005-04-28
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, Cl2, and at least one halopropene of the formula CX3CCl=CX2 (where each X is independently F or Cl) to produce a product including both CF3CCl2CF3 and CF3CClFCClF2; (b) reacting CF3CCl2CF3 and CF3CClFCClF2 produced in (a) with hydrogen to produce a product comprising CF3CH2CF3 and at least one compound selected from the group consisting of CHF2CHFCF3, and CF3CHFCF3; and (c) recovering from the product produced in (b), CF3CH2CF3 and at least one compound selected from the group consisting of CHF2CHFCF3 and CF3CHFCF3. In (a), the CF3CCl2CF3 and CF3CClFCClF2 are produced in the presence of a chlorofluorination 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.
揭示了一种用于制造
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)以及1,1,1,2,3,3,3-
七氟丙烷(HFC-227ea)的工艺。该工艺涉及(a)反应HF、Cl2和至少一种具有分子式CX3CCl=CX2的卤代
丙烯,其中每个X独立地为F或Cl,以产生包括CF3CCl2CF3和CF3CClFCClF2在内的产物;(b)将(a)中产生的CF3CCl2CF3和CF3CClFCClF2与氢反应,以产生包括CF3CH2CF3和从CHF2CHFCF3和CF3CHFCF3组成的至少一种化合物的产物;(c)从(b)中产生的产物中回收CF3CH2CF3和从CHF2CHFCF3和CF3CHFCF3组成的至少一种化合物。在(a)中,CF3CCl2CF3和CF3CClFCClF2在存在包括ZnCr2O4/结晶α-
氧化铬组合物、经过
氟化剂处理的ZnCr2O4/结晶α-
氧化铬组合物、
锌卤化合物/α-
氧化铬组合物和/或经过
氟化剂处理的
锌卤化合物/α-
氧化铬组合物的
氯氟化催化剂的情况下产生。