Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phase reaction
    2.
    发明公开
    Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phase reaction 失效
    Katalysator和Verfahren zur Herstellung von 1,1,1,2-Tetrafluoräthanin der Dampfphase。

    公开(公告)号:EP0295885A1

    公开(公告)日:1988-12-21

    申请号:EP88305447.0

    申请日:1988-06-15

    发明人: Sobolev, Igor

    摘要: A novel catalyst is prepared by codepositing hexavalent chromium oxide and a transition metal com­pound, preferably titanium trichloride, on alumina, followed by fluorinating the resulting combination. The catalyst is useful in the fluorination of a halo­ethylene of the formula CX₂=CHX (where the X's are chlo­rine or bromine or a combination of the two) in the vapor phase to form 1,1,1,2-tetrafluoroethane.

    摘要翻译: 通过将六价铬氧化物和过渡金属化合物(优选三氯化钛)在氧化铝上共沉淀,然后氟化所得到的组合来制备新的催化剂。 催化剂可用于在气相中氟化式CX2 = CHX(其中X为氯或溴或二者的组合)的卤代乙烯氟化以形成1,1,1,2-四氟乙烷。