DEHYDROFLUORINATION OF 245FA TO 1234ZE
    31.
    发明申请
    DEHYDROFLUORINATION OF 245FA TO 1234ZE 有权
    将245FA脱氢化为1234ZE

    公开(公告)号:US20160046546A1

    公开(公告)日:2016-02-18

    申请号:US14819807

    申请日:2015-08-06

    CPC classification number: C07C17/25 C07C21/18

    Abstract: A method of producing a fluoropropane of formula CF3CH═CHF, comprising contacting a mixture of 1,1,1,3,3-pentafluoropropane and Z-1,3,3,3-tetrafluoropropene in the gas phase with a catalyst comprising at least one catalyst selected from the group consisting of fluorinated Cr2O3 or Cr/Ni on fluoride alumina, in the presence of an oxygen containing gas, to form a mixture comprising Z-1,3,3,3-tetrafluoropropane, E-1,3,3,3,-tetrafluoropropene, hydrogen fluoride, and optionally unreacted 1,1,1,3,3-pentafluoropropane, separating the E-1,3,3,3-tetrafluoropropene from the Z-isomer and any unreacted 1,1,1,3,3-pentafluoropropane, if present, and recovering said E-1,3,3,3-tetrafluoropropene.

    Abstract translation: 一种制备式CF 3 CH = CHF氟代丙烷的方法,包括使气相中的1,1,1,3,3-五氟丙烷和Z-1,3,3,3-四氟丙烯的混合物与至少包含 在含氧气体的存在下,在氟化矾土上选自氟化Cr 2 O 3或Cr / Ni的一种催化剂,以形成包含Z-1,3,3,3-四氟丙烷,E-1,3, 3,3,3-四氟丙烯,氟化氢和任选的未反应的1,1,1,3,3-五氟丙烷,从Z-异构体中分离出E-1,3,3,3-四氟丙烯和任何未反应的1,1, 如果存在1,3,3-五氟丙烷,并回收所述E-1,3,3,3-四氟丙烯。

    Hydrofluoroalkane composition
    40.
    发明授权

    公开(公告)号:US10988422B2

    公开(公告)日:2021-04-27

    申请号:US16847041

    申请日:2020-04-13

    Abstract: The disclosure relates to a method for hydrofluorination of an olefin of the formula: RCX═CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, wherein X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C1-C6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C1-C6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo, comprising reacting the olefin with HF in the liquid-phase, in the presence of SbF5, at a temperature ranging from about −30° C. to about 65° C. and compositions formed by the process.

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