METHOD FOR PROLONGING A CATALYST'S LIFE DURING HYDROFLUORINATION
    21.
    发明申请
    METHOD FOR PROLONGING A CATALYST'S LIFE DURING HYDROFLUORINATION 审中-公开
    在氢化过程中促进催化剂寿命的方法

    公开(公告)号:US20150152028A1

    公开(公告)日:2015-06-04

    申请号:US14604867

    申请日:2015-01-26

    Abstract: The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in the presence of a fluorination catalyst, where by using 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) of high purity, the need to add an oxidizing agent (typically chlorine) to keep the catalyst active can be avoided. The HCFC-244bb is then used as an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf).

    Abstract translation: 本发明提供了通过2-氯-3,3,3-三氟丙烯(HCFO-1233xf)与氟化氢反应制备2-氯-1,1,1,2-四氟丙烷(HCFC-244bb)的改进方法, 氟化催化剂的存在,其中通过使用高纯度的2-氯-3,3,3-三氟丙烯(HCFO-1233xf),可以避免添加氧化剂(通常为氯)以保持催化剂活性的需要 。 然后将HCFC-244bb用作生产2,3,3,3-四氟丙烯-1(HFO-1234yf)的中间体。

    PROCESS FOR SYNTHESIS OF FLUORINATED OLEFINS
    23.
    发明申请
    PROCESS FOR SYNTHESIS OF FLUORINATED OLEFINS 审中-公开
    合成氟化烯烃的方法

    公开(公告)号:US20160145176A1

    公开(公告)日:2016-05-26

    申请号:US14797699

    申请日:2015-07-13

    CPC classification number: C07C17/21 C07C17/23 C07C17/25 C07C21/18 C07C19/08

    Abstract: Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise:(a) reacting a compound of formula (I) X1X2   (I) with a compound of formula (II) CX1X2X3CX1═CX1X2   (II) to produce a reaction product comprising a compound of formula (III) CF3CHX1CH2X2   (III), and (b) exposing said compound of formula (III) to reaction conditions effective to convert said compound of formula (III) to a compound of formula (IV) CF3CZ═CH2   (IV) wherein X1, X2, and X3 are each independently selected from the group consisting of hydrogen, chlorine, bromine, fluorine and iodine, provided that X1 and X2 in formula (I) are not both hydrogen and Z is Cl, I, Br, or F.

    Abstract translation: 公开了用于合成氟化烯烃的方法,特别优选的实施方案中,在不饱和的非末端碳上具有F的四氟化烯烃如2,3,3,3-四氟丙烯。 根据一个实施方案的本发明的优选方法通常包括:(a)使式(I)X1X2(I)化合物与式(II)化合物CX1X2X3CX1 = CX1X2(II)反应以产生反应产物,其包含 式(III)化合物,CF 3 CHX 1 CH 2 X 2(III)的化合物,和(b)将式(III)化合物暴露于有效将式(III)化合物转化成式(IV)化合物的反应条件:CF 3 CZ = CH 2 )其中X1,X2和X3各自独立地选自氢,氯,溴,氟和碘,条件是式(I)中的X1和X2不同时为氢,Z为Cl,I,Br, 或F.

    Process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb)
    24.
    发明授权
    Process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) 有权
    制备2-氯-1,1,1,2-四氟丙烷(HCFC-244bb)的方法

    公开(公告)号:US09181151B2

    公开(公告)日:2015-11-10

    申请号:US14021256

    申请日:2013-09-09

    CPC classification number: C07C17/087 C07C17/206 C07C17/25 C07C19/10 C07C21/18

    Abstract: The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst. The hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more. The HCFC-244bb is an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf).

    Abstract translation: 本发明提供了通过2-氯-3,3,3-三氟丙烯(HCFO-1233xf)与氟化氢反应制备2-氯-1,1,1,2-四氟丙烷(HCFC-244bb)的改进方法, 在氯化氢和液相氟化催化剂存在下进行液相反应。 氯化氢在约100psig或更高的压力下从外部来源加入到反应中。 HCFC-244bb是生产2,3,3,3-四氟丙烯-1(HFO-1234yf)的中间体。

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