Process for producing fluoropropenes
    71.
    发明授权
    Process for producing fluoropropenes 有权
    制备氟丙烯的方法

    公开(公告)号:US07230146B2

    公开(公告)日:2007-06-12

    申请号:US10694272

    申请日:2003-10-27

    IPC分类号: C07C17/25

    摘要: Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF3CY═CXNHP, wherein X and Y are independently hydrogen or a halogen selected from fluorine, chlorine, bromine and iodine; and N and P are independently integers equal to 0, 1 or 2, provided that (N+P)=2.

    摘要翻译: 用于从相应的卤代丙烷制备氟丙烯的脱卤化氢方法,其中氟丙烯具有式CF 3 C 1 -C 6 N N H P H,其中X Y独立地为氢或选自氟,氯,溴和碘的卤素; 并且N和P独立地为等于0,1或2的整数,条件是(N + P)= 2。

    One-step synthesis of CF3-1
    72.
    发明授权
    One-step synthesis of CF3-1 有权
    一步合成CF3-1

    公开(公告)号:US07132578B1

    公开(公告)日:2006-11-07

    申请号:US11181311

    申请日:2005-07-14

    IPC分类号: C07C17/00

    摘要: A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula: IFn wherein W can be H, Br, Cl, COOH, COCl, COOCH3, COOC2H5, COCH3, COPh, CF3, Si(CH3)3, SPh, SCH3, SSCF3, SSPh, SSCH3, or SO2Cl, wherein n is 1, 3, 5, or 7, and wherein the step of contacting is carried out, at a temperature, pressure and for a length of time sufficient to produce trifluoromethyl iodide. The contacting step can be carried out in the presence or absence of a catalyst and the contacting step can be carried out in the presence or absence of air.

    摘要翻译: 提供了制备三氟甲基碘的方法。 该方法包括在反应器中接触由下式表示的化合物的步骤:<?in-line-formula description =“In-line Formulas”end =“lead”?> CF 3 -W <?in-line-formula description =“In-line Formulas”end =“tail”?>和由下式表示的化合物:<?in-line-formula description =“In-line Formulas”end =“lead” 其中W可以是H,Br,Cl,COOH,COCl,COOCH CO 3,H 3,COCH 3,CO 2,CO 3,SO 3, 3,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个, SUB或SO 2 Cl,其中n为1,3,5或7,并且其中接触步骤在温度,压力和时间长度下进行,足以 产生三氟甲基碘。 接触步骤可以在催化剂存在或不存在下进行,并且接触步骤可以在空气存在或不存在下进行。

    Process for purifying 1,1-dichloro-2,2,2-trifluoroethane and
1-chloro-1,2,2,2-tetrafluoroethane
    77.
    发明授权
    Process for purifying 1,1-dichloro-2,2,2-trifluoroethane and 1-chloro-1,2,2,2-tetrafluoroethane 失效
    1,1-二氯-2,2,2-三氟乙烷和1-氯-1,2,2,2-四氟乙烷的纯化方法

    公开(公告)号:US5773671A

    公开(公告)日:1998-06-30

    申请号:US768338

    申请日:1996-12-17

    申请人: Hsueh Sung Tung

    发明人: Hsueh Sung Tung

    CPC分类号: B01J23/26 C07C17/395

    摘要: The invention relates to a novel process for purifying HCFC-123 and HCFC-124 comprising: (a) reacting a fluorination reaction product comprising HCFC-123 and HCFC-123a and/or HCFC-124 and HCFC-124a wherein at least one of said HCFC-123a or HCFC-124a is present in an amount not less than 5 weight percent relative to HCFC-123 or HCFC-124 respectively in the product with anhydrous HF in the presence of a fluorination catalyst under conditions such that the amount of HCFC-123a and/or HCFC-124a relative to HCFC-123 and/or HCFC-124 respectively in the product is reduced to less than 5 weight percent. The pure product (i.e., HCFC-123 or HCFC-124) may be used in a variety of applications including solvent, refrigerant, sterilant gas and blowing agent applications.

    摘要翻译: 本发明涉及一种用于净化HCFC-123和HCFC-124的新方法,包括:(a)使包含HCFC-123和HCFC-123a和/或HCFC-124和HCFC-124a的氟化反应产物与至少一种所述 在氟化催化剂存在下,HCFC-123a或HCFC-124a的含量分别相对于HCFC-123或HCFC-124在无水HF中的含量为5重量% 123a和/或HCFC-124a相对于HCFC-123和/或HCFC-124分别降低到小于5重量%。 纯产品(即,HCFC-123或HCFC-124)可用于各种应用,包括溶剂,制冷剂,杀菌剂气体和发泡剂应用。

    Manufacturing process for HFO-1234ze
    78.
    发明授权
    Manufacturing process for HFO-1234ze 有权
    HFO-1234ze制造工艺

    公开(公告)号:US09255046B2

    公开(公告)日:2016-02-09

    申请号:US12125045

    申请日:2008-05-21

    摘要: Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.

    摘要翻译: 公开了形成HFO-1234ze的方法,以及用于形成包含HFO-1234ze的组合物的方法,通过(a)优选通过脱氟化氢转化五氟丙烷(HFC-245),优选1,1,1,3,3-五氟丙烷(HFC -245fa),优选通过与苛性碱溶液接触,加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且(b)使至少一部分,优选基本上部分,在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触,以将至少一部分,优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。

    High purity E-1-chloro-3,3,3-trifluoropropene and methods of making the same
    79.
    发明授权
    High purity E-1-chloro-3,3,3-trifluoropropene and methods of making the same 有权
    高纯度E-1-氯-3,3,3-三氟丙烯及其制备方法

    公开(公告)号:US09156752B2

    公开(公告)日:2015-10-13

    申请号:US12984024

    申请日:2011-01-04

    IPC分类号: C07C21/18 C07C17/20 C07C17/25

    摘要: The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used.

    摘要翻译: 本发明公开了高纯度E-1-氯-3,3,3-三氟丙烯(1233zd(E))及其制备方法。 更具体地说,本发明公开了制备基本上不含有毒杂质的1233zd(E)的方法(例如2-氯-3,3,3-三氟丙烯(1233xf),氯四氟丙烯(1224)和3,3,3 三氟丙炔)。 本发明还提供了制备浓度为1233xf和1224等于或低于200ppm(ppm)的高纯度1233zd(E)和等于或低于20ppm的3,3,3-三氟丙炔杂质的方法。 如果使用纯1,1,1,3,3-五氯丙烷作为原料,则可以避免形成1233xf杂质。 还发现如果使用液相制造方法,则避免形成1233xf。