PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE
    1.
    发明申请
    PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE 有权
    制备2,3,3,3-四氯丙烯的方法

    公开(公告)号:US20100312025A1

    公开(公告)日:2010-12-09

    申请号:US12792969

    申请日:2010-06-03

    IPC分类号: C07C17/23

    CPC分类号: C07C17/25 C07C21/18

    摘要: Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) dehydrofluorinating 1,1,1,2,3-pentafluoropropane in the presence of a dehydrofluorination catalyst comprised of chromium (III) oxide, and alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and less than 20 parts per hundred 1,3,3,3-tetrafluoro-1-propene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in (a).

    摘要翻译: 公开了一种制备2,3,3,3-四氟丙烯的方法,包括:(a)在由氧化铬(III)组成的脱氟化氢催化剂存在下,将1,1,1,2,3-五氟丙烷脱氟化氢,和 碱金属,以制备包含2,3,3,3-四氟丙烯和少于20份/ 100,3,3,3-四氟-1-丙烯的产物混合物; 和(b)从(a)中制备的产物混合物回收所述2,3,3,3-四氟丙烯。

    CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE
    2.
    发明申请
    CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE 有权
    催化剂和制备2,3,3,3-四氯丙烯的方法

    公开(公告)号:US20110282112A1

    公开(公告)日:2011-11-17

    申请号:US13188787

    申请日:2011-07-22

    IPC分类号: C07C21/18

    CPC分类号: C07C17/25 C07C21/18

    摘要: Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,3-pentafluoropropane with a catalyst comprised of chromium (III) oxide and from 0.1% to 2% of an alkali metal disposed on the surface of said catalyst, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in (a).

    摘要翻译: 公开了一种制备2,3,3,3-四氟丙烯的方法,包括:(a)将1,1,1,2,3-五氟丙烷与由氧化铬(III)和0.1%至2 设置在所述催化剂表面上的碱金属的%,以产生包含2,3,3,3-四氟丙烯和氟化氢的产物混合物; 和(b)从(a)中制备的产物混合物回收所述2,3,3,3-四氟丙烯。

    CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE
    3.
    发明申请
    CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE 有权
    催化剂和制备2,3,3,3-四氯丙烯的方法

    公开(公告)号:US20120172639A1

    公开(公告)日:2012-07-05

    申请号:US13417582

    申请日:2012-03-12

    IPC分类号: C07C17/25

    摘要: Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,3-pentafluoropropane with a catalyst comprised of chromium (III) oxide having a surface area of at least 150 m2/g and having an alkali metal loading of at least 7 milligrams of alkali metal per 100 square meters of catalyst surface area, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in (a).

    摘要翻译: 公开了一种制备2,3,3,3-四氟丙烯的方法,包括:(a)将1,1,1,2,3-五氟丙烷与由表面积为 至少150m2 / g,并且每100平方米的催化剂表面积具有至少7毫克碱金属的碱金属负荷,以产生包含2,3,3,3-四氟丙烯和氟化氢的产物混合物; 和(b)从(a)中制备的产物混合物回收所述2,3,3,3-四氟丙烯。

    SYNTHESIS OF 1,1,3-TRICHLORO-1-PROPENE
    4.
    发明申请
    SYNTHESIS OF 1,1,3-TRICHLORO-1-PROPENE 有权
    1,1,3-三氯-1-丙烯的合成

    公开(公告)号:US20120142980A1

    公开(公告)日:2012-06-07

    申请号:US13278511

    申请日:2011-10-21

    IPC分类号: C07C17/25

    CPC分类号: C07C17/25 C07C21/04

    摘要: Disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising contacting 1,1,1,3,tetrachloropropane in the vapor phase in a reaction zone with a catalyst comprising iron, to produce a product mixture comprising 1,1,3-trichloro-1-propene; and recovering said 1,1,3-trichloro-1-propene from the product mixture produced. Also disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising heating 1,1,1,3-tetrachloropropane in the liquid phase to produce a mixture comprising 1,1,3-trichloro-1-propene, cooling said mixture, separating hydrogen chloride from said mixture and recovering 1,1,3-trichloro-1-propene.

    摘要翻译: 公开了1,1,1,3-四氯丙烷的脱氯化氢的方法,包括使反应区中的气相中的1,1,1,3,四氯丙烷与包含铁的催化剂接触,以产生包含1, 1,3-三氯-1-丙烯; 并从所生产的产物混合物回收所述1,1,3-三氯-1-丙烯。 还公开了1,1,1,3-四氯丙烷的脱氯化氢的方法,包括在液相中加热1,1,1,3-四氯丙烷以产生包含1,1,3-三氯-1-丙烯, 冷却所述混合物,从所述混合物中分离出氯化氢并回收1,1,3-三氯-1-丙烯。

    CONVERSION OF 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE TO 2,3,3,3-TETRAFLUOROPROPENE

    公开(公告)号:US20120232316A1

    公开(公告)日:2012-09-13

    申请号:US13478253

    申请日:2012-05-23

    IPC分类号: C07C17/25

    CPC分类号: C07C17/25 C07C21/18

    摘要: Described is a method for producing fluoropropenes of formula CF3CX═CX2 wherein each X is F or H, at least one X is H, and at least one X is F, comprising pyrolyzing a hydrofluorochloropropane of formula CF3CXYCX2Y, wherein each X is F or H, at least one X is H, and at least one X is F, and one Y is Cl and the other Y is H, in the gas-phase in a reaction vessel, maintained at a temperature high enough to effect the pyrolysis of said hydrofluorochloropropane to said fluoropropene, wherein the selectivity for the production of the fluoropropene is at least 80%, in the absence of a catalyst