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MOLYBDENUM-MODIFIED VANADIUM-PHOSPHORUS OXIDE CATALYSTS FOR THE PRODUCTION OF MALEIC ANHYDRIDE
MOLYBDENUM-MODIFIED VANADIUM-PHOSPHORUS OXIDE CATALYSTS FOR THE PRODUCTION OF MALEIC ANHYDRIDE
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机译:钼改性的钒磷氧化物催化剂用于生产马来酸酐
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摘要
An active catalyst having a crystal structure corresponding to that of a catalyst that has been prepared and activated by the following process. A substantially pentavalent vanadium-containing compound is reacted with a pentavalent phosphorus-containing compound in an alcohol medium capable of reducing the vanadium to an oxidiation state of less than +5. Molybdenum is incorporated into the product of the reaction, thereby forming a solid molybdenum-modified precursor composition. The alcohol is removed to produce a dried solid molybdenum-modified precursor composition. Shaped bodies comprising said dried solid molybdenum-modified precursor composition are formed. The dried formed molybdenum-modified catalyst precursor composition is activated to transform it into the active catalyst.
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