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    PROCESSES FOR THE PRODUCTION OF Z 1,1,1,4,4,4 HEXAFLUORO 2-BUTENE
    2.
    发明申请
    PROCESSES FOR THE PRODUCTION OF Z 1,1,1,4,4,4 HEXAFLUORO 2-BUTENE 审中-公开
    生产Z 1,1,1,4,4,4 HEXAFLOORO 2-BUTENE的方法

    公开(公告)号：US20170015607A1

    公开(公告)日：2017-01-19

    申请号：US15124738

    申请日：2015-03-18

    Applicant: THE CHEMOURS COMPANY FC, LLC

    Inventor： IVAN SERGEYEVICH BALDYCHEV ,  STEPHAN M. BRANDSTADTER ,  MARIO JOSEPH NAPPA ,  SHENG PENG

    IPC: C07C17/04

    CPC classification number: C07C17/04 ,  C07C17/25 ,  C07C17/278 ,  C07C17/354 ,  C07C19/10 ,  C07C21/22 ,  C07C21/18

    Abstract: Processes are provided for (i) producing Z-1,1,1,4,4,4-hexafluoro-2-butene (Z—CF3CH═CHCF3) from E-1,1,1,4,4,4-hexafluoro-2-butene (E-CF3CH═CHCF3), comprising the steps of (a) reacting the E-1,1,1,4,4,4-hexafluoro-2-butene (E-CF3CH═CHCF3) with chlorine to form dichloro-1,1,1,4,4,4-hexafluorobutane (CF3CHClCHClCF3), (b) recovering the dichloro-1,1,1,4,4,4-hexafluorobutane from step (a), (c) reacting the recovered dichloro-1,1,1,4,4,4-hexafluorobutane with base to form 1,1,1,4,4,4-hexafluoro-2-butyne (CF3≡CCF3), (d) recovering the 1,1,1,4,4,4-hexafluoro-2-butyne from step (c) and (e) reacting the recovered hexafluoro-2-butyne with hydrogen to form said Z-1,1,1,4,4,4-hexafluoro-2-butene, optionally wherein said E-1,1,1,4,4,4-hexafluoro-2-butene starting material is obtained by converting 1,1,1,4,4,4-hexafluoro-2-butane (F3CHCl2) to a mixture of Z-1,1,1,4,4,4-hexafluoro-2-butene and E-1,1,1,4,4,4-hexafluoro-2-butene and recovering the E-1,1,1,4,4,4-hexafluoro-2-butene from said mixture, whereby the E-1,1,1,4,4,4-hexafluoro-2-butene used in step (a) is the recovered E-1,1,1,4,4,4-hexafluoro-2-butene, and (ii) step (a) as a subcombination of the process (i).

    Abstract translation: 提供了（i）从E-1,1,1,4,4,4-六氟（Z-CF 3 CH = CHCF 3）生产Z-1,1,1,4,4,4-六氟-2-丁烯 -2-丁烯（E-CF 3 CH = CHCF 3），包括以下步骤：（A）使E-1,1,1,4,4,4-六氟-2-丁烯（E-CF 3 CH = CHCF 3）与氯反应 形成二氯-1,1,1,4,4,4-六氟丁烷（CF 3 CHClCHClCF 3），（b）从步骤（a）中回收二氯-1,1,1,4,4,4-六氟丁烷，（c）使 回收的二氯-1,1,1,4,4,4-六氟丁烷与碱形成1,1,1,4,4,4-六氟-2-丁炔（CF3≡CCF3），（d）回收1 ，步骤（c）中的1,1,4,4,4-六氟-2-丁炔和（e）使回收的六氟-2-丁炔与氢反应形成所述Z-1,1,1,4,4， 4-六氟-2-丁烯，任选其中所述E-1,1,1,4,4,4-六氟-2-丁烯起始原料是通过将1,1,1,4,4,4-六氟-2-丁烯， 将2-丁烷（F3CHCl2）与Z-1,1,1,4,4,4-六氟-2-丁烯和E-1,1,1,4,4,4-六氟-2-丁烯的混合物和 从所述mi回收E-1,1,1,4,4,4-六氟-2-丁烯 其中步骤（a）中使用的E-1,1,1,4,4,4-六氟-2-丁烯是回收的E-1,1,1,4,4,4-六氟-2-丁烯， 丁烯，和（ii）步骤（a）作为方法（i）的亚组合。

    INTEGRATED PROCESS FOR THE PRODUCTION OF Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
    3.
    发明申请
    INTEGRATED PROCESS FOR THE PRODUCTION OF Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE 有权
    生产Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE的综合方法

    公开(公告)号：US20160347694A1

    公开(公告)日：2016-12-01

    申请号：US15114944

    申请日：2015-02-06

    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 ,  C07C17/354 ,  C07C17/281

    CPC classification number: C07C17/25 ,  C07C17/23 ,  C07C17/281 ,  C07C17/354 ,  Y02P20/125 ,  Y02P20/582 ,  C07C21/18

    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 either Lindlar's catalyst, or a palladium catalyst further comprising a lantanide element or silver.

    Abstract translation: 公开了一种制备顺式-1,1,1,4,4,4-六氟-2-丁烯的方法，其包括在包含钌的催化剂存在下使1,1,1-三氟三氯乙烷与氢气接触以产生产物 混合物，其包含1316mxx，以Z和E异构体的混合物回收所述1316mxx，使所述1316mxx与氢气在选自碳上的镍，碳上的镍，碳上的铜和镍的碳的存在下接触，以及 铜和钯碳，以产生包含E-或Z-CFC-1326mxz的第二产物混合物，并使所述第二产物混合物进行分离步骤以提供E-或Z-1326mxz。 在相转移催化剂存在下，E-或Z-1326mxz可以在碱金属氢氧化物水溶液中脱氯化氢以产生六氟-2-丁炔，然后可以选择性氢化生成Z-1,1， 1,4,4,4-六氟-2-丁烯，或者使用林德拉尔催化剂或进一步包含兰丹尼特元素或银的钯催化剂。

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