LEWIS ACID CATALYSED SYNTHESIS OF 1,2-BIS(PERFLUOROALKYL)ETHYLENES

    公开(公告)号:US20220185749A1

    公开(公告)日:2022-06-16

    申请号:US17442641

    申请日:2020-04-17

    Abstract: A method of producing a fluoroolefin includes contacting a compound of formula (1), RfCH═CHF, with a fluorinated ethylene compound of formula (2), CX1X2═CX3X4 in the presence of a Lewis acid catalyst. In the compound of formula (1), Rf is a C1-C10 perfluorinated alkyl group. In the compound of formula (2), X1, X2, X3, and X4 are each independently H, Cl, or F and at least one of X1, X2, X3, and X4 is F. The resulting composition comprises a compound of formula (3), RfCF3(CX5X6CX7X8)nCH═CHCX9X10CX11X12F. In the compound of formula (3), X5, X6, X7, X8, X9, X10, X11, and X12 are each independently H, Cl, or F, n is an integer of 0 or 1, and the total number of each of H, Cl, and F corresponds to the total number of each of H, Cl, and F provided by the fluorinated ethylene compound of formula (2).

    SYNTHESIS OF HFO-153-10MCZZ INCLUDING CATALYTIC COUPLING OF HCFC-225CA OR CFC-215CB

    公开(公告)号:US20250145551A1

    公开(公告)日:2025-05-08

    申请号:US18836840

    申请日:2023-02-24

    Abstract: In an embodiment, a method of producing a fluoroolefin comprises coupling 3,3-dichloro-1,1,1,2,2-pentafluoropropane (CF3—CF2—CHCl2) in a liquid phase in the presence of a catalyst to form a composition comprising 1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3CF2CH═CHCF2CF3). In another embodiment, a method of producing a fluoroolefin comprises coupling 1,1,1-trichloropentafluoropropane (CF3—CF2—CCl3) in a vapor phase in the presence of a first catalyst to form a composition comprising 3,4-dichloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3—CF2—CCl═CCl—CF2—CF3). The method may further include forming the CF3—CF2—CCl3 in a vapor phase from CF3CF2CHmCl3-m and chlorine (Cl2). The method may further include hydrodechlorinating the 3,4-dichloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene with hydrogen (H2) in a vapor phase in the presence of a second catalyst to form a composition comprising CF3CF2CH═CHCF2CF3 and 3-chloro-1,1,1,2,2,5,5,6,6,6-decafluoro-3-hexene (CF3CF2CCl═CHCF2CF3).

    USE OF ALKYL PERFLUOROALKENE ETHERS AND MIXTURES THEREOF IN HIGH TEMPERATURE HEAT PUMPS
    6.
    发明申请
    USE OF ALKYL PERFLUOROALKENE ETHERS AND MIXTURES THEREOF IN HIGH TEMPERATURE HEAT PUMPS 审中-公开
    在高温热泵中使用全氟代醇及其混合物

    公开(公告)号:US20160137895A1

    公开(公告)日:2016-05-19

    申请号:US14893599

    申请日:2014-05-30

    Abstract: Disclosed herein is a method for producing heating in a high temperature heat pump having a heat exchanger. The method comprises extracting heat from a working fluid, thereby producing a cooled working fluid wherein said working fluid comprises at least one alkyl perfluoroalkene ether. Also disclosed is a method of raising the maximum feasible condenser operating temperature in a high temperature heat pump apparatus. The method comprises charging the high temperature heat pump with a working fluid comprising at least one alkyl perfluoroalkene ether. Also disclosed is a high temperature heat pump apparatus. The apparatus contains a working fluid comprising at least one alkyl perfluoroalkene ether. Also disclosed is a composition comprising at least one alkyl perfluoroalkene ether, and specialized additives or lubricants for use in a high temperature heat pump.

    Abstract translation: 本发明公开了一种在具有热交换器的高温热泵中进行加热的方法。 该方法包括从工作流体中提取热量,从而产生冷却的工作流体,其中所述工作流体包括至少一种烷基全氟烯烃醚。 还公开了一种在高温热泵装置中提高最大可行冷凝器工作温度的方法。 该方法包括用包括至少一种烷基全氟烯烃醚的工作流体对高温热泵进行充电。 还公开了一种高温热泵装置。 该装置含有包含至少一种烷基全氟烯烃醚的工作流体。 还公开了包含至少一种烷基全氟烯烃醚和用于高温热泵的专用添加剂或润滑剂的组合物。

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