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    REGENERATION OF CATALYST FOR PREPARING ALLYL ACETATE
    6.
    发明专利
    REGENERATION OF CATALYST FOR PREPARING ALLYL ACETATE 失效

    公开(公告)号：JPH04131136A

    公开(公告)日：1992-05-01

    申请号：JP25318190

    申请日：1990-09-20

    申请人： SHOWA DENKO KK

    发明人： YOSHIKAWA HIROKO ,  SANO KENICHI ,  YAMADA KENJI ,  NISHINO HIROSHI

    IPC分类号： B01J23/96 ,  C07C69/155

    摘要： PURPOSE:To effectively regenerate a palladium supported catalyst by washing the palladium supported catalyst used in reaction with water or a 6 or less C org. solvent having a b.p. of 70 deg.C or higher under atmospheric pressure. CONSTITUTION:The palladium supported catalyst used in reaction preparing allyl acetate from propylene, acetic acid and oxygen in a gaseous phase is washed with a solvent. As the solvent used in washing, one capable of removing resin, resinous matter an alkali metal acetate and an alkaline earth metal acetate on the surface of palladium without imparting a change to the form of palladium is pref. and pure water or a 6 or less C org. solvent having a b.p. of 70 deg.C or higher, for example, org. acids such as acetic acid or propionic acid, esters such as ethyl acetate or butyl acetate or alcohols such as ethanol or propanol is used and the washing due to pure water is especially pref. Washing is pref carried out at about 15-40 deg.C. By this method, the palladium supported catalyst can effectively be regenerated.