METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS
    1.
    发明申请
    METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS 审中-公开
    生产氟化有机化合物的方法

    公开(公告)号:US20150315108A1

    公开(公告)日:2015-11-05

    申请号:US14269251

    申请日:2014-05-05

    IPC分类号: C07C17/20

    摘要: Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF3CF═CH2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl2═CClCH2Cl (which may be purchased or synthesized from 1,2,3-trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CF3CCl═CH2, preferably in a 80-96% selectivity. The CF3CCl═CH2 is preferably converted to CF3CFClCH3 (244-isomer) using a SbCl5 as the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture of Cr2O3 and FeCl3/C is preferably used as the catalyst to achieve high selectivity to CF3CCl═CH2 (96%). In the second step, SbCl5/C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CF3CFClCH3. The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%.

    摘要翻译: 公开了用于生产氟化烯烃的方法,优选适于CF 3CF≡CH2(1234yf)的商业化。 在优选实施方案中可以使用三个步骤,其中诸如CCl 2 = CClCH 2 Cl(其可以由1,2,3-三氯丙烷购买或合成)的原料被氟化(优选在气相存在下,在HF的存在下) 合成化合物如CF 3 CCl = CH 2,优选选择性为80-96%。 CF 3 CCl = CH 2优选使用SbCl 5作为催化剂转化为CF 3 CFClCH 3(244-异构体),然后将其选择性地转化为1234yf,优选在使用活性炭作为催化剂的气相催化反应中。 对于第一步,优选使用Cr 2 O 3和FeCl 3 / C的混合物作为催化剂,以实现对CF 3 CCl = CH 2(96%)的高选择性。 在第二步中,SbCl 5 / C优选用作用于将1233xf转化为244-异构体CF 3 CFClCH 3的选择性催化剂。 中间体优选通过蒸馏分离和纯化,并用于下一步骤而不进一步纯化,优选纯度高于约95%。

    Method for producing fluorinated organic compounds
    2.
    发明授权
    Method for producing fluorinated organic compounds 有权
    氟化有机化合物的制备方法

    公开(公告)号:US08455704B2

    公开(公告)日:2013-06-04

    申请号:US13287199

    申请日:2011-11-02

    IPC分类号: C07C17/00

    摘要: Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF3CF═CH2 (1234yf). In certain preferred embodiments the processes comprise first exposing a compound of Formula (IA) C(X)2═CClC(X)3  (IA) where each X is independently F, Cl or H, preferably CCl2═CClCH2Cl, to one or more sets of reaction conditions, but preferably a substantially single set of reaction conditions, effective to produce at least one chlorofluoropropane, preferably in accordance with Formula (IB): CF3CClX′C(X′)3  Formula (IB) where each X′ is independently F, Cl or H, and then exposing the compound of Formula (IB) to one or more sets of reaction conditions, but preferably a substantially single set of reaction conditions, effective to produce a compound of Formula (II) CF3CF═CHZ  (II) where Z is H, F, Cl, I or Br.

    摘要翻译: 公开了用于制备氟化烯烃的方法,优选适于商业化CF 3 CF = CH 2(1234yf)。 在某些优选实施方案中,该方法包括首先将式(IA)C(X)2 = CClC(X)3(IA)的化合物暴露于其中每个X独立地为F,Cl或H,优选CCl 2 = CClCH 2 Cl, 反应条件组,但优选基本上单一组的反应条件,有效产生至少一种氯氟丙烷,优选按照式(IB):CF 3 CClX'C(X')3式(IB),其中每个X'独立地为F ,然后将式(IB)化合物暴露于一组或多组反应条件,但优选基本上单一组的反应条件,有效地制备式(II)化合物,CF 3 CF = CHZ(II) 其中Z是H,F,Cl,I或Br。

    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf)
    4.
    发明授权
    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) 有权
    2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的制备方法

    公开(公告)号:US08367878B2

    公开(公告)日:2013-02-05

    申请号:US13367667

    申请日:2012-02-07

    IPC分类号: C07C17/00

    摘要: The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.

    摘要翻译: 本发明涉及一种通过使1,1,2,3-四氯丙烯,1,1,1,2,3-五氯丙烷与1,1,2,3-四氯丙烷反应制备2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的改进方法 ,和/或2,3,3,3-四氯丙烯与氟化氢在气相反应容器中在气相氟化催化剂和稳定剂存在下反应。 HCFC-1233xf是生产2,3,3,3-四氟丙烯(HFO-1234yf)的中间体,它是具有低全球变暖潜能的制冷剂。

    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf)
    6.
    发明授权
    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) 有权
    2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的制备方法

    公开(公告)号:US08119845B2

    公开(公告)日:2012-02-21

    申请号:US12880951

    申请日:2010-09-13

    IPC分类号: C07C17/00

    摘要: The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.

    摘要翻译: 本发明涉及一种通过使1,1,2,3-四氯丙烯,1,1,1,2,3-五氯丙烷与1,1,3,3-四氯丙烯反应制备2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的改进方法 ,和/或2,3,3,3-四氯丙烯与氟化氢在气相反应容器中在气相氟化催化剂和稳定剂存在下反应。 HCFC-1233xf是生产2,3,3,3-四氟丙烯(HFO-1234yf)的中间体,它是具有低全球变暖潜能的制冷剂。