Preparation of maleic anhydride
    2.
    发明授权
    Preparation of maleic anhydride 失效
    马来酸酐的制备

    公开(公告)号:US4400522A

    公开(公告)日:1983-08-23

    申请号:US374219

    申请日:1982-05-03

    摘要: The present invention provides a method for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus, which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapor phase to produce high yields of maleic anhydride with good selectivity. Vanadium phosphorus mixed oxide catalyst precursors prepared in solution in organic media are extracted from the organic media with water, with subsequent drying down to recover a precursor solid, or impregnation of a support with the aqueous solution.

    摘要翻译: 本发明提供一种制备含有钒和磷的混合氧化物的氧化催化剂的方法,该催化剂在正丁烷,正丁烯,1,3-丁二烯或其与分子氧或其混合物的氧化中是特别有效的 气相中的含氧气体,以产生高产率的马来酸酐,具有良好的选择性。 在有机介质溶液中制备的钒磷混合氧化物催化剂前体用水从有机介质中萃取,随后干燥以回收前体固体,或用水溶液浸渍载体。

    Preparation of vanadium phosphorus catalysts
    3.
    发明授权
    Preparation of vanadium phosphorus catalysts 失效
    钒磷催化剂的制备

    公开(公告)号:US4360453A

    公开(公告)日:1982-11-23

    申请号:US210885

    申请日:1980-11-28

    摘要: The present invention provides a method for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus, which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapor phase to produce high yields of maleic anhydride with good selectivity. Vanadium phosphorus mixed oxide catalyst precursors prepared in solution in organic media are extracted from the organic media with water, with subsequent drying down to recover a precursor solid, or impregnation of a support with the aqueous solution.

    摘要翻译: 本发明提供一种制备含有钒和磷的混合氧化物的氧化催化剂的方法,该催化剂在正丁烷,正丁烯,1,3-丁二烯或其与分子氧或其混合物的氧化中是特别有效的 气相中的含氧气体,以产生高产率的马来酸酐,具有良好的选择性。 在有机介质溶液中制备的钒磷混合氧化物催化剂前体用水从有机介质中萃取,随后干燥以回收前体固体,或用水溶液浸渍载体。