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    Process for the manufacture of 1,1,1,2-Tetrafluoroethane
    21.
    发明授权
    Process for the manufacture of 1,1,1,2-Tetrafluoroethane 失效
    制备1,1,1,2-四氟乙烷的方法

    公开(公告)号：US5731481A

    公开(公告)日：1998-03-24

    申请号：US772521

    申请日：1996-12-24

    Applicant: Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

    Inventor： Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

    IPC: B01J27/132 ,  C07B39/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/20 ,  C07C19/00 ,  C07C19/08 ,  C07C17/08

    CPC classification number: C07C17/206

    Abstract: The invention relates to the manufacture of 1,1,1,2-tetrafluoroethane (F134a) by gas-phase catalytic fluorination of 1-chloro-2,2,2-trifluoroethane (F133a). A mixed catalyst is employed, composed of nickel and chromium oxides, halides and/or oxyhalides deposited on a support consisting of aluminium fluoride or of a mixture of aluminium fluoride and alumina. This mixed catalyst makes it possible to obtain an excellent selectivity for F134a with a high production efficiency.

    Abstract translation: 本发明涉及通过1-氯-2,2,2-三氟乙烷（F133a）的气相催化氟化制备1,1,1,2-四氟乙烷（F134a）。 使用由镍和铬氧化物组成的混合催化剂，沉积在由氟化铝或氟化铝和氧化铝的混合物组成的载体上的卤化物和/或氧卤化物。 该混合催化剂使得可以以高生产效率获得对F134a的优异选择性。

    Process for the purification of 1,1,1,2-tetrafluoroethane
    22.
    发明授权
    Process for the purification of 1,1,1,2-tetrafluoroethane 失效
    1,1,1,2-四氟乙烷纯化方法

    公开(公告)号：US5430205A

    公开(公告)日：1995-07-04

    申请号：US329600

    申请日：1994-10-26

    Applicant: Bernard Cheminal ,  Andre Lantz ,  Eric Lacroix

    Inventor： Bernard Cheminal ,  Andre Lantz ,  Eric Lacroix

    IPC: B01J23/26 ,  B01J23/755 ,  B01J27/128 ,  B01J27/132 ,  B01J27/138 ,  C07B61/00 ,  C07C17/395 ,  C07C19/08 ,  C07C17/38

    CPC classification number: C07C17/395

    Abstract: In order to remove the olefinic impurities (in particular 1-chloro-2,2-difluoroethylene and polyfluoropropenes) present in crude 1,1,1,2-tetrafluoroethane (F134a), a gaseous mixture of crude F134a, hydrofluoric acid and oxygen or air is treated in the gas phase, in the presence of a fluorination catalyst, at a temperature between 200.degree. and 350.degree. C. and at a pressure between atmospheric pressure and 2.5 MPa, the HF/F134a molar ratio being between 0.05 and 0.5 and the O.sub.2 /F134a molar ratio being between 0.001 and 0.1.

    Abstract translation: 为了除去原料1,1,1,2-四氟乙烷（F134a）中存在的烯烃杂质（特别是1-氯-2,2-二氟乙烯和多氟丙烯），粗F134a，氢氟酸和氧的气体混合物或 空气在气相中，在氟化催化剂的存在下，在200-350℃的温度和大气压至2.5MPa的压力下进行处理，HF / F134a摩尔比为0.05-0.5，和 O2 / F134a摩尔比为0.001至0.1。

    Process for the recovery of antimony-based catalysts used for the fluorination of halgenated hydrocarbons
    23.
    发明授权
    Process for the recovery of antimony-based catalysts used for the fluorination of halgenated hydrocarbons 失效
    用于回收氢化烃的反应性催化剂的方法

    公开(公告)号：US5198199A

    公开(公告)日：1993-03-30

    申请号：US827775

    申请日：1992-01-29

    Applicant: Eric LaCroix ,  Andre Lantz

    Inventor： Eric LaCroix ,  Andre Lantz

    IPC: B01J27/32 ,  B01J38/00 ,  C01G30/00 ,  C07B61/00 ,  C07C17/08 ,  C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C19/10 ,  C07C19/12

    CPC classification number: B01J27/32 ,  C01G30/007 ,  Y02P20/584

    Abstract: To recover the antimony contained in a solution of use antimony-containing catalyst, emananting from units for the fluorination or chlorofluorination of halogenated hydrocarbons comprising at least two carbon atoms, the solution is concentrated to the limit of distillation of antimony trichloride, an excess of chlorine is then added to convert SbCl.sub.3 to SbCl.sub.5, and SbCl.sub.5 is distilled under reduced pressure without exceeding 120.degree. C.The recoverd antimony pentachloride is sufficiently pure to be able to be recycled directly to the fluorination reactor.

    Abstract translation: 为了回收使用含锑催化剂的溶液中所含的锑，从用于氟化或氯氟化含有至少两个碳原子的卤代烃的单元发出，将溶液浓缩至三氯化锑的极限，过量的氯 然后加入SbCl 3以将SbCl 5转化为SbCl 5，并将SbCl 5减压蒸馏而不超过120℃。回收的五氯化锑是足够纯的，能够直接再循环到氟化反应器中。

    Process for the manufacture of fluorinated alkanols and esters thereof
    26.
    发明授权
    Process for the manufacture of fluorinated alkanols and esters thereof 失效
    制备氟化链烷醇及其酯的方法

    公开(公告)号：US4613681A

    公开(公告)日：1986-09-23

    申请号：US163978

    申请日：1980-06-30

    Applicant: Louis Foulletier ,  Andre Lantz

    Inventor： Louis Foulletier ,  Andre Lantz

    IPC: C07C27/00 ,  C07C29/124 ,  C07C31/38 ,  C07C67/00 ,  C07C69/62 ,  C07C69/003 ,  C07C29/58

    CPC classification number: C07C29/124 ,  C07C67/00

    Abstract: This invention relates to a process for the preparation of a fluorinated compound of the general formulaR.sub.F C.sub.2 H.sub.4 ORcomprising reacting an iodide of the general formula R.sub.F C.sub.2 H.sub.4 I with a percarboxylic acid of the general formula R.sup.1 CO.sub.3 H at a temperature and for a time sufficient to form said fluorinated compound; in said formulae R.sub.F is a straight or branched chain perfluorinated radical containing 1 to 20 C atoms, R is a hydrogen atom or --COR.sup.1, and R.sup.1 is a hydrogen atom or an aliphatic or aromatic hydrocarbon radical.

    Abstract translation: 本发明涉及制备通式为RFC2H4OR的含氟化合物的方法，包括使通式为RFC2H4I的碘化物与通式为R 1 CO 3 H的过羧酸在足以形成所述氟化化合物的温度和时间下反应; 在所述式中，RF是含有1至20个C原子的直链或支链全氟化基团，R是氢原子或-COR 1，R 1是氢原子或脂族或芳族烃基。

    Method for coproducing difluoromethane and 1,1,1,2-tetrafluoroethane
    30.
    发明授权
    Method for coproducing difluoromethane and 1,1,1,2-tetrafluoroethane 失效
    共同生产二氟甲烷和1,1,1,2-四氟乙烷的方法

    公开(公告)号：US5750810A

    公开(公告)日：1998-05-12

    申请号：US875656

    申请日：1997-07-30

    Applicant: Jean-Pierre Schirmann ,  Serge Hub ,  Andre Lantz

    Inventor： Jean-Pierre Schirmann ,  Serge Hub ,  Andre Lantz

    IPC: C07C17/23 ,  C07C17/269 ,  C07C19/08 ,  C07C19/12 ,  C07C17/26

    CPC classification number: C07C17/23 ,  C07C17/269

    Abstract: The present invention relates to the simultaneous manufacture of difluoromethane (F32) and 1,1,1,2-tetrafluoroethane (F134a) by pyrolysis of chlorodifluoromethane in the presence of hydrogen, working at a temperature above 500.degree. C. in the absence of any catalyst or metal surface. Depending on the operating conditions chosen, this process also makes it possible predominantly to manufacture either F134a or F32.

    Abstract translation: PCT No.PCT / FR96 / 00070 Sec。 371日期1997年7月30日 102（e）日期1997年7月30日PCT 1996年1月16日PCT PCT。 公开号WO96 / 25377 日期：1996年8月22日本发明涉及通过在氢气存在下热解氯二氟甲烷同时制造二氟甲烷（F32）和1,1,1,2-四氟乙烷（F134a），工作温度高于500℃。 在没有任何催化剂或金属表面的情况下。 根据所选的操作条件，此过程也可能主要制造F134a或F32。

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