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    METHOD FOR PREPARING FLUORINE COMPOUNDS
    3.
    发明申请
    METHOD FOR PREPARING FLUORINE COMPOUNDS 有权
    氟化合物的制备方法

    公开(公告)号：US20120136183A1

    公开(公告)日：2012-05-31

    申请号：US13382574

    申请日：2010-05-21

    申请人： Michel Devic ,  Nicolas Doucet ,  Laurent Wendlinger ,  Geraldine Cavallini ,  Pierre-Marie Sedat ,  Karine Avril

    发明人： Michel Devic ,  Nicolas Doucet ,  Laurent Wendlinger ,  Geraldine Cavallini ,  Pierre-Marie Sedat ,  Karine Avril

    IPC分类号： C07C17/25 ,  C07C17/383

    CPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C19/08

    摘要： The invention relates to a method for preparing fluoropropenes of formula (I) CF3CF═CHR, where R is a hydrogen or a fluorine atom from at least one compound of formula (Ia) CF3CF═CFR, where R has the same meaning as in formula (I), said method including the following steps: (i) hydrogenating at least one compound of formula (Ia) in an adiabatic reactor in the presence of a catalyst with a superstoichiometric amount of hydrogen so as to produce a hydrofluoropropane; (ii) partially condensing the flow from the adiabatic reactor of step (i) so as to produce a gaseous phase fraction, including unreacted hydrogen and a portion of the formed hydrofluoropropane, which is recirculated to step (i), and a liquid phase fraction including the residue of the hydrofluoropropane; (iii) dehydrofluorinating hydrofluoropropane from the liquid fraction of step (ii) using potassium hydroxide in an aqueous reaction medium contained in an agitated reactor so as to produce the fluoropropene of formula (I); and (iv) purifying the fluoropropene obtained in step (iii).

    摘要翻译： 本发明涉及一种制备式（I）CF 3 CF = CHR的氟丙烯的方法，其中R是至少一种式（Ia）CF 3 CF = CFR的化合物的氢或氟原子，其中R的定义与式 （I），所述方法包括以下步骤：（i）在具有超化学计量的氢的催化剂存在下，在绝热反应器中氢化至少一种式（Ia）化合物以产生氢氟丙烷; （ii）部分冷凝来自步骤（i）的绝热反应器的流，以便产生气相馏分，包括未反应的氢气和一部分所形成的氢氟丙烷，其循环至步骤（i），以及液相馏分 包括氢氟丙烷的残留物; （iii）使用氢氧化钾在搅拌反应器中的含水反应介质中，从步骤（ii）的液体馏分中脱氢氟化氢氟丙烷，以制备式（I）的氟丙烯; 和（iv）纯化步骤（iii）中获得的氟丙烯。

    Method for preparing fluorine compounds
    5.
    发明授权
    Method for preparing fluorine compounds 有权
    氟化合物的制备方法

    公开(公告)号：US08779217B2

    公开(公告)日：2014-07-15

    申请号：US13382574

    申请日：2010-05-21

    申请人： Michel Devic ,  Nicolas Doucet ,  Laurent Wendlinger ,  Geraldine Cavallini ,  Pierre-Marie Sedat ,  Karine Avril

    发明人： Michel Devic ,  Nicolas Doucet ,  Laurent Wendlinger ,  Geraldine Cavallini ,  Pierre-Marie Sedat ,  Karine Avril

    IPC分类号： C07C17/25 ,  C07C17/354

    CPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C19/08

    摘要： The invention relates to a method for preparing fluoropropenes of formula (I) CF3CF═CHR, where R is a hydrogen or a fluorine atom from at least one compound of formula (Ia) CF3CF═CFR, where R has the same meaning as in formula (I), said method including the following steps: (i) hydrogenating at least one compound of formula (Ia) in an adiabatic reactor in the presence of a catalyst with a superstoichiometric amount of hydrogen so as to produce a hydrofluoropropane; (ii) partially condensing the flow from the adiabatic reactor of step (i) so as to produce a gaseous phase fraction, including unreacted hydrogen and a portion of the formed hydrofluoropropane, which is recirculated to step (i), and a liquid phase fraction including the residue of the hydrofluoropropane; (iii) dehydrofluorinating hydrofluoropropane from the liquid fraction of step (ii) using potassium hydroxide in an aqueous reaction medium contained in an agitated reactor so as to produce the fluoropropene of formula (I); and (iv) purifying the fluoropropene obtained in step (iii).

    摘要翻译： 本发明涉及一种制备式（I）CF 3 CF = CHR的氟丙烯的方法，其中R是至少一种式（Ia）CF 3 CF = CFR的化合物的氢或氟原子，其中R的定义与式 （I），所述方法包括以下步骤：（i）在具有超化学计量的氢的催化剂存在下，在绝热反应器中氢化至少一种式（Ia）化合物以产生氢氟丙烷; （ii）部分地冷凝来自步骤（i）的绝热反应器的流，以便产生气相馏分，包括未反应的氢气和一部分所形成的氢氟丙烷，其循环至步骤（i），以及液相馏分 包括氢氟丙烷的残留物; （iii）使用氢氧化钾在搅拌反应器中的含水反应介质中，从步骤（ii）的液体馏分中脱氢氟化氢氟丙烷，以制备式（I）的氟丙烯; 和（iv）纯化步骤（iii）中获得的氟丙烯。

    Process for the preparation of fluoroolefin compounds
    9.
    发明授权
    Process for the preparation of fluoroolefin compounds 有权
    氟烯烃化合物的制备方法

    公开(公告)号：US08536386B2

    公开(公告)日：2013-09-17

    申请号：US12602705

    申请日：2009-08-18

    申请人： Anne Pigamo ,  Michel Devic ,  Laurent Wendlinger

    发明人： Anne Pigamo ,  Michel Devic ,  Laurent Wendlinger

    IPC分类号： C07C17/00

    CPC分类号： C07C17/25 ,  C07C21/18

    摘要： A subject-matter of the invention is a process for the preparation of fluoroolefin compounds. It relates more particularly to a process for the manufacture of a compound of formula (I) CF3—CF═CHX in which X represents a hydrogen or fluorine atom, comprising at least one stage of dehydrofluorination of a compound of formula (II) CF3—CHF—CHFX during which the compound of formula (II) is brought into contact with a mixture composed of water and of potassium hydroxide in which the potassium hydroxide is present in an amount of between 58 and 86% by weight.

    摘要翻译： 本发明的主题是制备氟烯烃化合物的方法。 更具体地涉及制备式（I）化合物的方法，其中X表示氢或氟原子，包括式（II）化合物的至少一个脱氟化氢阶段CF 3 - CHF-CHFX，其中使式（II）化合物与由氢和氢氧化钾组成的混合物接触，其中氢氧化钾的存在量为58至86重量％。

    PROCESS FOR THE PREPARATION OF FLUORINATED COMPOUNDS
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF FLUORINATED COMPOUNDS 有权
    制备氟化合物的方法

    公开(公告)号：US20110190554A1

    公开(公告)日：2011-08-04

    申请号：US12602707

    申请日：2009-08-19

    申请人： Anne Pigamo ,  Michel Devic ,  Laurent Wendlinger

    发明人： Anne Pigamo ,  Michel Devic ,  Laurent Wendlinger

    IPC分类号： C07C17/23

    CPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  Y02P20/582 ,  C07C19/08

    摘要： A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene. Stages (ii) and (iv) are carried out using a water and potassium hydroxide mixture with the potassium hydroxide representing between 58 and 86% by weight of the mixture and at a temperature of between 110 and 180° C.

    摘要翻译： 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法，其包括以下步骤：（i）六氟丙烯的氢化，得到1,1,1,2,3 ，3-六氟丙烷; （ii）前段得到的1,1,1,2,3,3-六氟丙烷的脱氟化氢，得到1,2,3,3,3-五氟-1-丙烯; （iii）在前一阶段获得的1,2,3,3,3-五氟-1-丙烯的氢化，得到1,1,1,2,3-五氟丙烷; 和（iv）前一阶段获得的1,1,1,2,3-五氟丙烷的脱氟化氢，得到2,3,3,3-四氟-1-丙烯。 阶段（ii）和（iv）使用氢氧化钾与氢氧化钾混合物的比例为混合物的58-86％（重量）和在110和180℃之间的温度下进行。