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。
Functionalized Copolymers of Terminally Functionalized Perfluoro (Alkyl Vinyl Ether) Reactor Wall for Photochemical Reactions, Process for Increasing Fluorine Content in Hydrocaebons and Halohydrocarbons and Olefin Production
申请人:Rao Velliyur Nott Mallikarjuna
公开号:US20070265368A1
公开(公告)日:2007-11-15
A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a functionalized copolymer of a terminally functionalized perfluoro(alkyl vinyl ether). Also described is a photochemical reaction process using said reactor. The functional group of the copolymer of the apparatus and the process is selected from —SO
2
F, —SO
2
CI, —SO
3
H, —CO
2
R (where R is H or C1-C3 alkyl), —PO
3
H
2
, and salts thereof. A process for increasing the flourine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound, and (b) reacting the halogenated hydrocarbon in (a) with HF. A process for producing an olefinic compound, comprising: (a) photochlorinating at least one compound selected from hydrocarbons and halohydrocarbons containing at least two carbon atoms and at least two hydrogen atoms to produce a halogenated hydrocarbon containing a hydrogen substituent and a chlorine substituent on adjacent carbon atoms; and (b) subjecting the halogenated hydrocarbon produced in (a) to dehydrohalogenation.
公开了一种光化学反应装置,包括反应器和光源,使来自光源的光线通过反应器壁的一部分。该装置的特征在于反应壁的部分包括末端官能化的全氟(烷基乙烯基醚)共聚物。还描述了使用该反应器的光化学反应过程。该装置和过程的共聚物的官能团从以下中选择:—SO2F,—SO2CI,—SO3H,—CO2R(其中R为H或C1-C3烷基),—PO3H2和其盐。一种用于增加至少一种选择自碳氢化合物和卤代碳氢化合物的氟含量的过程,包括:(a)光氯化至少一种化合物,和(b)将(a)中的卤代碳氢化合物与HF反应。一种生产烯烃化合物的方法,包括:(a)光氯化至少一种选择自含有至少两个碳原子和至少两个氢原子的碳氢化合物和卤代碳氢化合物的化合物,以生成在相邻碳原子上具有氢取代基和氯取代基的卤代碳氢化合物;和(b)对(a)中产生的卤代碳氢化合物进行脱卤化。