4.
    发明专利
    未知

    公开(公告)号:DE59405671D1

    公开(公告)日:1998-05-20

    申请号:DE59405671

    申请日:1994-01-25

    Applicant: BASF AG

    Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.

    10.
    发明专利
    未知

    公开(公告)号:ES2115787T3

    公开(公告)日:1998-07-01

    申请号:ES94101022

    申请日:1994-01-25

    Applicant: BASF AG

    Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.

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