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37 条记录 (耗时 0.034 秒)

    Process for the manufacture of fluorinated alkanols and esters thereof
    7.
    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

    申请人： Louis Foulletier ,  Andre Lantz

    发明人： Louis Foulletier ,  Andre Lantz

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

    CPC分类号： C07C29/124 ,  C07C67/00

    摘要： 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.

    摘要翻译： 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。

    Process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane
    9.
    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

    申请人： Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

    发明人： Bernard Cheminal ,  Eric Lacroix ,  Andre Lantz

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

    CPC分类号： C07C17/206 ,  B01J21/18 ,  B01J23/26

    摘要： 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.

    摘要翻译： 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。