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    METHOD FOR PREPARING FLUORINE COMPOUNDS
    1.
    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
    2.
    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。