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    Process for the preparation of 1,1,2,2-tetrahydroperfluoroalkanols and their esters
    1.
    发明授权
    Process for the preparation of 1,1,2,2-tetrahydroperfluoroalkanols and their esters 失效
    制备1,1,2,2-四氢全氟烷醇及其酯的方法

    公开(公告)号：US4791223A

    公开(公告)日：1988-12-13

    申请号：US128825

    申请日：1987-12-04

    Applicant: Andre Lantz ,  Pascal Michaud

    Inventor： Andre Lantz ,  Pascal Michaud

    IPC: C07C67/03 ,  C07C27/00 ,  C07C29/124 ,  C07C29/48 ,  C07C31/38 ,  C07C31/40 ,  C07C67/00 ,  C07C69/63 ,  C07C67/02

    CPC classification number: C07C31/40 ,  C07C29/124 ,  C07C67/11

    Abstract: The invention relates to the synthesis of 1,1,2,2-tetrahydroperfluoroalkanols and their esters by oxidizing a 2-(perfluoroalkyl)ethyl iodide using hydrogen peroxide in a carboxylic acid or carboxylic acid ester in the presence of sulphuric acid.In the process according to the invention, from 1 to 30 moles of sulphuric acid, from 1 to 50 moles of carboxylic acid or of an ester of such an acid, and from 3 to 20 moles of hydrogen peroxide per mole of 2-perfluoralkyl)ethyl iodide are used.

    Abstract translation: 本发明涉及通过在硫酸存在下使用过氧化氢在羧酸或羧酸酯中氧化2-（全氟烷基）乙基碘来合成1,1,2,2-四氢全氟烷醇及其酯。 在根据本发明的方法中，每摩尔2-全氟烷基含有1至30摩尔硫酸，1至50摩尔羧酸或这种酸的酯和3至20摩尔过氧化氢， 使用乙基碘。

    Process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane
    5.
    发明授权
    Process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane 失效
    制备1,1,1,2-四氟氯乙烷和五氟乙烷的方法

    公开(公告)号：US5354928A

    公开(公告)日：1994-10-11

    申请号：US65422

    申请日：1993-05-24

    Applicant: Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

    Inventor： Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

    IPC: B01J23/26 ,  B01J27/053 ,  B01J27/132 ,  B01J27/25 ,  C07B61/00 ,  C07C17/20 ,  C07C19/08 ,  C07C19/12 ,  C07C17/08

    CPC classification number: C07C17/206 ,  B01J21/18 ,  B01J23/26

    Abstract: The invention relates to a process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane.The process which consists of gas phase catalytic fluorination of at least one pentahaloethane of formula C.sub.2 HX.sub.2-n F.sub.3+n in which X denotes a chlorine or bromine atom and n the number 0 or 1, by hydrofluoric acid, is characterized in that a catalyst is employed consisting of a catalytic quantity of chromium in an oxidation state equal to or greater than 3 and of an activated charcoal as support.The selectivity for 1,1,1,2-tetrafluorochloroethane and pentafluoroethane reaches approximately 95% and even more.

    Abstract translation: 本发明涉及一种制备1,1,1,2-四氟氯乙烷和五氟乙烷的方法。 由氢氟酸将至少一种式为C 2 H x 2-n F 3 + n的五卤代乙烷（其中X表示氯或溴原子，数字0或1）的气相催化氟化的方法的特征在于使用催化剂 由催化量的等于或大于3的氧化态的铬和作为载体的活性炭组成。 1,1,1,2-四氟氯乙烷和五氟乙烷的选择性达到约95％甚至更高。

    Surface demoisturizing composition and use thereof
    7.
    发明授权
    Surface demoisturizing composition and use thereof 失效
    表面净化组合物及其用途

    公开(公告)号：US4594177A

    公开(公告)日：1986-06-10

    申请号：US468499

    申请日：1983-02-22

    Applicant: Andre Lantz ,  Henri Mathais ,  Gerard Dupuis

    Inventor： Andre Lantz ,  Henri Mathais ,  Gerard Dupuis

    IPC: B01D12/00 ,  B01F17/14 ,  B08B3/08 ,  C03C23/00 ,  C09K3/18 ,  C23G5/028 ,  F26B5/00 ,  C09K3/00 ,  C11D1/62

    CPC classification number: C23G5/02809 ,  C03C23/0085 ,  C09K3/18 ,  F26B5/005

    Abstract: Demoisturizing composition used for the displacement of liquid water, comprising a chlorofluorocarbon that is liquid at room temperature, containing a surface-active agent responding to the formula: ##STR1## in which R is an alkyl group in C.sub.6 -C.sub.18R' is an alkyl group in C.sub.1 to C.sub.2R" is an alkyl group in C.sub.1 to C.sub.18p is a value ranging between 1 and 2characterized in that the surface-active composition is prepared by mixing the following three constituents: ##STR2## where R.sub.F represents a straight or branched perfluorinated alkyl chain of formula C.sub.q F.sub.2q+1 in which q is a whole number ranging between 2 and 20 and where X is a divalent bond group that may be partially halogenated and R.sub.1 and R.sub.2 represent a hydrogen atom, an alkyl radical or a hydroxyalkyl radical, containing less than 6 carbon atoms.

    Abstract translation: 用于置换液态水的脱模组合物，其包含在室温下为液体的含氟氟烃，其含有响应于下式的表面活性剂：其中R是C 6 -C 18 R'中的烷基是烷基 C1至C2中的基团R“是C1至C18中的烷基，p为1至2的范围，其特征在于表面活性组合物通过混合以下三种成分制备：（R'O ）p（OH）2-pPO2H其中RF表示式CqF2q + 1的直链或支链全氟化烷基链，其中q是2和20之间的整数，并且其中X是可以部分的二价键基团 卤代，R 1和R 2表示含有少于6个碳原子的氢原子，烷基或羟烷基。

    Process for the purification of 1,1,1,2-tetrafluoroethane
    9.
    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：US5705718A

    公开(公告)日：1998-01-06

    申请号：US730738

    申请日：1996-10-15

    Applicant: Bernard Cheminal ,  Andre Lantz

    Inventor： Bernard Cheminal ,  Andre Lantz

    IPC: B01J23/26 ,  B01J27/128 ,  B01J27/132 ,  C07B63/02 ,  C07C17/395 ,  C07C19/08 ,  C07C17/38

    CPC classification number: C07C17/395

    Abstract: To remove the unsaturated 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, of hydrofluoric acid and of chlorine is treated in gaseous phase in the presence of a fluorination catalyst at a temperature of between 100.degree. and 300.degree. C. and at a pressure between atmospheric pressure and 2.5 MPa, the molar ratio HF/F134a being between 0.05 and 0.5 and the molar ratio Cl.sub.2 /F134a between 0.0001 and 0.1.

    Abstract translation: 为了除去原料1,1,1,2-四氟乙烷（F134a）中存在的不饱和杂质（特别是1-氯-2,2-二氟乙烯和多氟丙烯），氢氟酸和氯的粗F134a的气体混合物是 在氟化催化剂存在下，在100〜300℃的温度和大气压〜2.5MPa的压力下，在气相中处理，HF / F134a的摩尔比为0.05〜0.5，Cl 2的摩尔比 / F134a在0.0001和0.1之间。

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