| 摘要 |
PURPOSE:To use a catalyst having high activity and selectivity, containing a complex oxide consisting of V, P and O mainly as an active component and In, Ni, etc., as an active modification component, when 4C hydrocarbon is oxidized in a vapor phase to provide maleic anhydride. CONSTITUTION:When 4C hydrocarbon (preferably straightly chained) is oxidized to provide the aimed maleic anhydride, the reaction is carried out using a catalyst containing a complex oxide [e.g. divanadyl pyrophosphorate] consisting of V, P and O as an active component and element(s) (preferably In and Ni) selected from In, Co and Cu as an active modification component at 50-500 deg.C and 0.1-10kg/cm<2>G. The catalyst composition is calcined and activated at 350-620 deg.C, when used in the reaction. |
