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    Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3-tetrafluoropropene
    43.
    再颁专利
    Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3-tetrafluoropropene 有权

    公开(公告)号：USRE47862E1

    公开(公告)日：2020-02-18

    申请号：US15094150

    申请日：2016-04-08

    Applicant: THE CHEMOURS COMPANY FC, LLC

    Inventor： Barry Asher Mahler ,  Mario Joseph Nappa ,  Jeffrey P Knapp

    IPC: C09K5/00

    Abstract: Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

    Hydrofluorination of a halogenated olefin with SbF5 in the liquid phase
    45.
    发明授权
    Hydrofluorination of a halogenated olefin with SbF5 in the liquid phase 有权

    公开(公告)号：US10301236B2

    公开(公告)日：2019-05-28

    申请号：US15575526

    申请日：2016-05-20

    Applicant: THE CHEMOURS COMPANY FC, LLC

    Inventor： Xuehui Sun ,  Mario Joseph Nappa ,  Karl Krause

    IPC: C07C17/087 ,  C07C17/20 ,  C07C19/10

    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 RCHXCFYZ, 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.

    Process for the reduction of RfC≡CX impurities in fluoroolefins
    46.
    发明授权
    Process for the reduction of RfC≡CX impurities in fluoroolefins 有权

    公开(公告)号：US10246388B2

    公开(公告)日：2019-04-02

    申请号：US15609292

    申请日：2017-05-31

    Applicant: THE CHEMOURS COMPANY FC, LLC

    Inventor： Mario Joseph Nappa ,  Xuehui Sun ,  David Richard Corbin

    IPC: C07C17/389 ,  C07C17/25 ,  C07C17/087 ,  C07C21/18

    Abstract: This disclosure relates to processes which involve: contacting a mixture comprising at least one fluoroolefin and at least one RfC≡CX impurity with at least one zeolite to reduce the concentration of the at least one RfC≡CX impurity in the mixture; wherein Rf is a straight-chain perfluorinated alkyl group, and X is H, F, Cl, Br or I; and the at least one zeolite is selected from the group consisting of zeolites having pore opening of at least 4 Angstroms and no more than about 5 Angstroms, zeolites having pore opening of at least about 5 Angstroms and Sanderson electronegativity of no more than about 2.6, and mixtures thereof; provided that the at least one zeolite is not zeolite 4A. This disclosure also relates to processes for making at least one hydrotetrafluoropropene product selected from the group consisting of CF3CF═CH2, CF3CH═CHF, and mixtures thereof; and relates to processes for making at least one hydrochlorotrifluoropropene product selected from the group consisting of CF3CCl═CH2, CF3CH═CHCl, and mixtures thereof.

    Integrated process for the production of Z-1,1,1,4,4,4-hexafluoro-2-butene
    48.
    发明授权
    Integrated process for the production of Z-1,1,1,4,4,4-hexafluoro-2-butene 有权

    公开(公告)号：US10099976B2

    公开(公告)日：2018-10-16

    申请号：US15699067

    申请日：2017-09-08

    Applicant: THE CHEMOURS COMPANY FC, LLC

    Inventor： Ivan Sergeyevich Baldychev ,  Stephan M Brandstadter ,  Patricia Cheung ,  Mario Joseph Nappa ,  Sheng Peng ,  Donald J Toton

    IPC: C07C17/25 ,  C07C17/23 ,  C07C17/354 ,  C07C17/281

    Abstract: Disclosed is a process for the preparation of cis-1,1,1,4,4,4-hexafluoro-2-butene comprising contacting 1,1,1-trifluorotrichloroethane with hydrogen in the presence of a catalyst comprising ruthenium to produce a product mixture comprising 1316mxx, recovering said 1316mxx as a mixture of Z- and E-isomers, contacting said 1316mxx with hydrogen, in the presence of a catalyst selected from the group consisting of copper on carbon, nickel on carbon, copper and nickel on carbon and copper and palladium on carbon, to produce a second product mixture, comprising E- or Z-CFC-1326mxz, and subjecting said second product mixture to a separation step to provide E- or Z-1326mxz. The E- or Z-1326mxz can be dehydrochlorinated in an aqueous basic solution with an alkali metal hydroxide in the presence of a phase transfer catalyst to produce hexafluoro-2-butyne, which can then be selectively hydrogenated to produce Z-1, 1,1,4,4,4-hexafluoro-2-butene using using either Lindlar's catalyst, or a palladium catalyst further comprising a lantanide element or silver.

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