Producing hydrofluoro compounds by hydrogenolysis of iodides
    122.
    发明授权
    Producing hydrofluoro compounds by hydrogenolysis of iodides 失效
    通过碘化氢的氢解生产氢氟化合物

    公开(公告)号:US06525231B1

    公开(公告)日:2003-02-25

    申请号:US08043917

    申请日:1993-04-07

    IPC分类号: C06T2122

    摘要: A process is disclosed for producing RCFZH by reaction of an iodide compound of the formula R′CFZI with hydrogen at an elevated temperature, wherein R is SF5, CF2SF5 or RfCF2Y, R′ is SF5, CF2SF5 or RfCF2X, Rf is a perfluoroalkylene group containing from 1 to about 12 carbon atoms and optionally containing one or more ether oxygen atoms, Z is selected from F, CF3 and CF2CF3, Y is selected from H, F and SF5, and X is selected from H, F, SF5, and I, provided that when Y is F, X is F, when Y is SF5, X is SF5, and when Y is H, X is H or I.

    摘要翻译: 公开了通过在升高的温度下使式R'CFZI的碘化物与氢反应制备RCFZH的方法,其中R是SF5,CF2SF5或RfCF2Y,R'是SF5,CF2SF5或RfCF2X,Rf是含全氟亚烷基的 1至约12个碳原子并且任选地含有一个或多个醚氧原子,Z选自F,CF 3和CF 2 CF 3,Y选自H,F和SF 5,X选自H,F,SF 5和I 条件是当Y为F时,X为F,当Y为SF5时,X为SF5,当Y为H时,X为H或I.

    Process for the manufacture of halocarbons and selected compounds and azeotropes with HF
    123.
    发明授权
    Process for the manufacture of halocarbons and selected compounds and azeotropes with HF 失效
    用于制造卤代烃和所选化合物以及与HF共沸的方法

    公开(公告)号:US06291730B1

    公开(公告)日:2001-09-18

    申请号:US09011401

    申请日:1998-01-28

    IPC分类号: C07C1710

    摘要: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula: CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2═C3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing: (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons. Azeotropes of CClF2CH2CF3 with HF and azeotropes of CF3CH2CHF2 with HF are also disclosed; as are processes for producing such azeotropes. A process for purification of certain hydrofluorocarbons and/or chloroprecursors thereof from mixtures of such compounds with HF is also disclosed.

    摘要翻译: 公开了制备下式的卤化烷烃加成物的液相方法:CAR1R2CBR3R4(其中A,B,R1,R2,R3和R4如说明书中所定义),其涉及使相应的卤代烷烃AB与相应的 烯烃,CR1R2 = C3R4在二腈或环状碳酸酯溶剂中,其将反应混合物分成两个液相,并且在催化剂体系存在下,包含:(i)至少一种选自单价和二价铜的催化剂; 和任选地(ii)选自在杂环中含有至少一个碳 - 氮双键的芳族或脂族杂环化合物的促进剂。 当形成氢氯氟烃时,可以通过氢氯氟烃与HF反应来降低氯含量。 所公开的新化合物包括CF 3 CF 2 CCl 2 CH 2 ClCl 3,CF 3 CCl 2 CH 2 CH 2 Cl和CF 3 CCl 2 CH 2 CHClF。 这些化合物可用作生产氢氟烃的中间体。 还公开了CClF 2 CH 2 CF 3与HF的共沸物和CF 3 CH 2 CHF 2与HF的共沸物质; 生产这种共沸物的方法也是如此。 还公开了从这些化合物与HF的混合物中纯化某些氢氟烃和/或其氯前体的方法。

    Process for the manufacture of halocarbons
    124.
    发明授权
    Process for the manufacture of halocarbons 失效
    制造卤代烃的工艺

    公开(公告)号:US06255544B1

    公开(公告)日:2001-07-03

    申请号:US09341616

    申请日:1999-07-13

    IPC分类号: C07C1706

    摘要: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2═CR3R4 in a solvent and in the presence of a catalyst system containing (i) at least one catalyst comprising monovalent copper, and (ii) at least one ionic promoter selected from the group consisting of substituted ammonium halides, pyridinium and substituted pyridinium halides, and quaternary salts of the type (MQ4)Y where M is an element of Group VA of the Periodic Table (i.e., N, P, As, Sb, or Bi), Q is a C1-C18 hydrocarbyl group, and Y is chloride, bromide or iodide. Production of hydrofluoroalkanes by reacting selected adducts of the type produced above with HF is also disclosed.

    摘要翻译: 公开了用于制备式CAR1R2CBR3R4(其中A,B,R1,R2,R3和R4如说明书中所定义)的卤代烷烃加合物的液相方法,其涉及使相应的卤代烷烃AB与相应的烯烃 ,CR1R2 = CR3R4,并且在含有(i)至少一种包含一价铜的催化剂的催化剂体系的存在下,和(ii)至少一种选自取代的卤化铵,吡啶鎓和取代的吡啶鎓的离子助催化剂 卤化物和季铵盐(MQ4)Y,其中M是元素周期表第VA族元素(即N,P,As,Sb或Bi),Q是C1-C18烃基,Y 是氯化物,溴化物或碘化物。 还公开了通过使选择的上述类型的加成物与HF反应制备氢氟烷烃。

    1,1,2,2,3,3,4,4-octaflourobutane compositions
    125.
    发明授权
    1,1,2,2,3,3,4,4-octaflourobutane compositions 失效
    1,1,2,2,3,3,4,4-八氟丁烷组合物

    公开(公告)号:US5705471A

    公开(公告)日:1998-01-06

    申请号:US606241

    申请日:1996-02-23

    摘要: Compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms are described. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentane, 2,2-dimethylbutane, 2-methylbutane, cyclohexane, 2,3-dimethylpentane, 3-ethylpentane, heptane, hexane, methylcyclopentane, 2-methylpentane or 3-methylpentane. Compositions of 1,1,2,2,3,3,4,4-octafluorobutane and ethyl formate, propylene oxide, bis(pentafluoroethyl)sulfide, dimethoxyethane or tetrahydrofuran are also described. The compositions described above, may be azeotropic or azeotrope-like, and may be used as refrigerants, cleaning agents, expansion agents, for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.

    摘要翻译: 描述了1,1,2,2,3,3,4,4-八氟丁烷的组成和具有3至7个碳原子的烃。 具体实例包括1,1,2,2,3,3,4,4-八氟丁烷和丁烷,环丙烷,异丁烷,丙烷,环戊烷,2,2-二甲基丁烷,2-甲基丁烷,环己烷,2,3-二甲基戊烷,3 乙基戊烷,庚烷,己烷,甲基环戊烷,2-甲基戊烷或3-甲基戊烷。 还描述了1,1,2,2,3,3,4,4-八氟丁烷和甲酸乙酯,环氧丙烷,双(五氟乙基)硫醚,二甲氧基乙烷或四氢呋喃的组合物。 上述组合物可以是共沸的或类共沸的,并且可以用作制冷剂,清洁剂,膨胀剂,聚烯烃和聚氨酯,气溶胶推进剂,传热介质,气体电介质,灭火剂,动力循环工作流体, 聚合介质,微粒去除液,载体流体,抛光研磨剂或置换干燥剂。

    Tetrafluoropropene production processes
    129.
    发明授权
    Tetrafluoropropene production processes 有权
    四氟丙烯生产工艺

    公开(公告)号:US08377327B2

    公开(公告)日:2013-02-19

    申请号:US12758839

    申请日:2010-04-13

    IPC分类号: C09K5/04

    摘要: A process is disclosed for the manufacture of CF3CF═CH2 and CF3CH═CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF═CH2 and CF3CH═CHF, and recovering said CF3CF═CH2 and CF3CH═CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH═CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH═CHF.

    摘要翻译: 公开了用于制造CF 3CF≡CH2和CF 3 CH = CHF的方法。 该方法包括在脱氟化氢催化剂存在下对CF 3 CHFCH 2 F进行脱氟化氢,以产生包含CF 3CF≡CH2和CF 3 CH = CHF的产物混合物,并从产物混合物中回收所述CF 3CF≡CH2和CF 3 CH = CHF。 本发明还提供了包含(a)CF 3 CH = CHF的Z-异构体和(b)HF的组合物; 其中HF以有效量存在以与Z-CF 3 CH = CHF形成共沸组合。

    Process for the manufacture fluorocarbons
    130.
    发明授权
    Process for the manufacture fluorocarbons 失效
    制造碳氟化合物的方法

    公开(公告)号:US08354039B2

    公开(公告)日:2013-01-15

    申请号:US13153580

    申请日:2011-06-06

    IPC分类号: C09K5/04 C07C17/383

    摘要: Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2-fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2-fluorochloropropane; contacting said partially fluorinated 2-fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1,1,2,2, penta-3-chloropropane, or mixtures thereof, respectively.

    摘要翻译: 结构CF 3 CF 2 CH 2 X的卤代烃,其中X是F或Cl或其混合物,其通过以下步骤制备:在基本上无水条件下,在气相或液相中的第一氟化步骤中使至少一种2-氟氯丙烷与氟化氢接触, 加入催化剂部分氟化所述2-氟氯丙烷; 在第二次氟化步骤中,在至少一种氟化催化剂的存在下,在基本无水的条件下使所述部分氟化的2-氟氯丙烷与化学计量摩尔当量的氟化氢接触; 除去所述反应产物不与所述催化剂接触,并分离出至少1,1,1,2,2,3-六氟丙烷或1,1,1,2,2,五-3-氯丙烷或其混合物的实质产率 分别。