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    Process for the manufacture of halocarbons and selected compounds and azeotropes with HF
    72.
    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

    申请人： Ralph Thomas Baker ,  Viacheslav Alexandrovich Petrov ,  Velliyur Nott Mallikarjuna Rao ,  Allen Capron Sievert

    发明人： Ralph Thomas Baker ,  Viacheslav Alexandrovich Petrov ,  Velliyur Nott Mallikarjuna Rao ,  Allen Capron Sievert

    IPC分类号： C07C1710

    CPC分类号： C07C19/10 ,  C07C17/206 ,  C07C17/275 ,  C07C17/278 ,  C07C17/38 ,  C07C17/386 ,  C07C19/08 ,  Y02P20/582 ,  C07C19/01 ,  C07C19/16

    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。

    Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
    73.
    发明授权
    Treatment of chromium oxide and catalytic manufacture of vinyl fluoride 失效
    氧化铬的处理和催化制造氟乙烯

    公开(公告)号：US6034289A

    公开(公告)日：2000-03-07

    申请号：US973379

    申请日：1997-12-03

    申请人： Frank J. Christoph ,  George W. Coulston ,  Velliyur Nott Mallikarjuna Rao

    发明人： Frank J. Christoph ,  George W. Coulston ,  Velliyur Nott Mallikarjuna Rao

    IPC分类号： C01G37/02 ,  B01J21/02 ,  B01J23/26 ,  B01J27/132 ,  B01J37/06 ,  B01J37/26 ,  C07B61/00 ,  C07C17/25 ,  C07C21/18

    CPC分类号： B01J37/06 ,  B01J21/02 ,  B01J23/26 ,  B01J27/132 ,  B01J37/26 ,  C07C17/25 ,  Y02P20/582

    摘要： Advantageous processes are disclosed for the production of vinyl fluoride. Also disclosed are advantageous methods which may be employed for the preparation of catalysts useful in such processes. Included are methods which involve (i) reducing surface B.sub.2 O.sub.3 present in a bulk chromium oxide composition containing surface B.sub.2 O.sub.3 by treating said composition with HF at an elevated temperature and/or (ii) treating a bulk chromium oxide composition containing B.sub.2 O.sub.3 to enrich the B.sub.2 O.sub.3 present on its surface by heating said composition in oxygen or an oxygen-containing environment (e.g., air) at an elevated temperature for a time sufficient to enrich the B.sub.2 O.sub.3 on the surface of the composition by at least a factor of two compared to the surface analysis of the untreated bulk composition. Processes are provided herein which involve contacting 1,1-difluoroethane in the vapor phase with a trivalent chromium catalyst (preferably a trivalent chromium catalyst having primarily the morphology of alpha-chromium oxide and/or containing less than 1000 ppm alkali metal as the alkali metal oxide) wherein chromium is at least 95 atom percent of the metallic cations of said catalyst, at a temperature between about 225.degree. C. and 375.degree. C. Advantageous embodiments of these processes are disclosed wherein (i) the catalyst is prepared by reducing B.sub.2 0.sub.3 present in a bulk chromium oxide composition as indicated above, (ii) chromium is at least 99 atom percent of the metallic cations of the catalyst and/or (iii) the space velocity is from about 200 volumes to 2000 volumes of 1,1-difluoroethane per volume of catalyst per hour.

    摘要翻译： PCT No.PCT / US96 / 09752 Sec。 371日期1997年12月3日第 102（e）日期1997年12月3日PCT提交1996年6月7日PCT公布。 公开号WO96 / 41679 日期1996年12月27日公开了用于生产氟乙烯的有利的方法。 还公开了可用于制备可用于这些方法的催化剂的有利方法。 包括以下方法：（i）通过在高温下用HF处理所述组合物和/或（ii）处理含有B 2 O 3的本体氧化铬组合物以富集B 2 O 3，从而减少存在于含有表面B 2 O 3的本体氧化铬组合物中的表面B 2 O 3 在表面上通过在氧气或含氧环境（例如空气）中在升高的温度下加热所述组合物足以使组合物表面上的B 2 O 3与表面分析相比至少增加2倍的时间 的未处理的散装组合物。 本文提供了将气相中的1,1-二氟乙烷与三价铬催化剂（优选主要具有α-氧化铬形态的三价铬催化剂和/或含有少于1000ppm碱金属作为碱金属的三价铬催化剂） 氧化物），其中铬为所述催化剂的金属阳离子的至少95原子％，温度为约225℃至375℃。公开了这些方法的有利实施方案，其中（i）催化剂通过还原B 2 O 3 存在于如上所述的本体氧化铬组合物中，（ii）铬是催化剂的金属阳离子的至少99原子％，和/或（iii）空间速度为约200体积至2000体积的1,1- 每单位体积催化剂每小时二氟乙烷。

    Tetrafluoropropene production processes
    76.
    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

    申请人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  Ralph Newton Miller

    发明人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  Ralph Newton Miller

    IPC分类号： C09K5/04

    CPC分类号： C07C21/18 ,  C07B2200/09 ,  C07C17/25

    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
    77.
    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

    申请人： Mario Joseph Nappa ,  Velliyur Nott Mallikarjuna Rao ,  Allen Capron Sievert ,  Jeffrey P. Knapp

    发明人： Mario Joseph Nappa ,  Velliyur Nott Mallikarjuna Rao ,  Allen Capron Sievert ,  Jeffrey P. Knapp

    IPC分类号： C09K5/04 ,  C07C17/383

    CPC分类号： C07C17/38 ,  C07C17/206 ,  C07C17/386 ,  C07C19/08 ,  C07C19/10 ,  C09K5/045 ,  C09K2205/126

    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。

    Production processes for making 1,1,1,2,2,3-hexafluoropropane
    78.
    发明授权
    Production processes for making 1,1,1,2,2,3-hexafluoropropane 失效
    制备1,1,1,2,2,3-六氟丙烷的制备方法

    公开(公告)号：US08314273B2

    公开(公告)日：2012-11-20

    申请号：US12439575

    申请日：2007-09-04

    申请人： Barry Asher Mahler ,  Xuehui Sun ,  Velliyur Nott Mallikarjuna Rao

    发明人： Barry Asher Mahler ,  Xuehui Sun ,  Velliyur Nott Mallikarjuna Rao

    IPC分类号： C07C17/266

    CPC分类号： C07C17/278 ,  C07C19/08

    摘要： A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of the at least one co-product is at least 10 ppmv based on the total amount of the tetrafluoroethylene, the difluoromethane and the at least one co-product.

    摘要翻译： 公开了制备HFC-236cb的方法。 该方法包括在至少一种共同产物和合适的催化剂的存在下使TFE与HFC-32反应以产生包含HFC-236cb的产物混合物，其中至少一种副产物的总量至少为10ppmv 基于四氟乙烯，二氟甲烷和至少一种副产物的总量。

    1,2,3,3,3-Pentafluoropropene production processes
    79.
    发明授权
    1,2,3,3,3-Pentafluoropropene production processes 有权
    1,2,3,3,3-五氟丙烯生产工艺

    公开(公告)号：US08263816B2

    公开(公告)日：2012-09-11

    申请号：US12301065

    申请日：2007-06-22

    申请人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert

    发明人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert

    IPC分类号： C07C19/08 ,  C07C17/25 ,  C07C21/18

    CPC分类号： C09K5/045 ,  C07C17/00 ,  C07C17/087 ,  C07C17/206 ,  C07C17/23 ,  C07C17/354 ,  C07C19/08 ,  C07C19/10 ,  C07C21/18

    摘要： A process is disclosed for making CF3CF═CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF═CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1.Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.

    摘要翻译： 公开了一种制备CF 3 CF = CHF的方法。 该方法包括在反应区中在催化剂存在下使CF 3 CClFCCl 2 F与H 2反应以产生包含CF 3 CF = CHF的产物混合物。 催化剂具有催化有效量的负载在选自氧化铝，氟化氧化铝，氟化铝及其混合物的载体上的载体，并且进料到反应区的H 2与CF 3 CClFCCl 2 F的摩尔比在约1:1和约 5：1。 还公开了CF 3 CClFCCl 2 F和HF的共沸组合物和CF 3 CHFCH 2 F和HF的共沸组合物。

    Catalytic addition of hydrofluorocarbons to fluoroolefins
    80.
    发明授权
    Catalytic addition of hydrofluorocarbons to fluoroolefins 失效
    向氟烯烃催化加成氢氟烃

    公开(公告)号：US08247625B2

    公开(公告)日：2012-08-21

    申请号：US12307754

    申请日：2007-07-03

    申请人： Xuehui Sun ,  Viacheslav A. Petrov ,  Mario Joseph Nappa ,  Velliyur Nott Mallikarjuna Rao ,  Ekaterina N. Swearingen

    发明人： Xuehui Sun ,  Viacheslav A. Petrov ,  Mario Joseph Nappa ,  Velliyur Nott Mallikarjuna Rao ,  Ekaterina N. Swearingen

    IPC分类号： C07C17/266 ,  C07C17/26

    CPC分类号： C07C17/278 ,  C07C19/08

    摘要： A process is disclosed for making RR1R2CCR1R2F wherein R is selected from the group consisting of CH3, CH2F, C2H4F, and F(CF2)nCH2CH2 where n is an integer from 1 to 10, each R1 is independently selected from the group consisting of H, Cl, F and CF3, and each R2 is independently selected from the group consisting of H, F and CF3. The process involves reacting RF with R1R2C═CR1R2 in the presence of SbF5 to produce a product mixture comprising RR1R2CCR1R2F, wherein the reaction temperature is from about −60° C. to about −10° C., provided that total number of carbon atoms in R1R2C═CR1R2 is 5 or less.

    摘要翻译： 公开了制备RR1R2CCR1R2F的方法，其中R选自CH 3，CH 2 F，C 2 H 4 F和F（CF 2）n CH 2 CH 2，其中n为1至10的整数，每个R 1独立地选自H， Cl，F和CF 3，并且每个R 2独立地选自H，F和CF 3。 该方法包括在SbF 5存在下使RF与R 1 R 2 C = CR 1 R 2反应以产生包含RR1R2CCR1R2F的产物混合物，其中反应温度为约-60℃至约-10℃，条件是总碳原子数 R1R2C=CR1R2为5以下。