Iron/lithium-promoted catalysts for the production of maleic...

Details Iron/lithium-promoted catalysts for the production of maleic... Iron/lithium-promoted catalysts for the production of maleic...

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252/72, 260/365.

B01J 27/14 (2006.01) B01J 27/198 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01) C07D 307/60 (2006.01)

Patent

CA 1270808

43-21(6574)A IRON/LITHIUM - PROMOTED CATALYSTS FOR THE PRODUCTION OF MALEIC ANHYDRIDE AND A PROCESS FOR THE PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE Catalysts useful for the partial oxidation of nonaromatic hydrocarbons, particularly n-butane, with molecular oxygen or an oxygen-containing gas in the vapor phase to produce maleic anhydride are provided which comprise phosphorus, vanadium, and oxygen and a promoter component containing each of iron and lithium. Such catalysts are prepared by contacting a substantially tetravalent vanadium- containing compound and a phosphorus-containing compound and a promoter component containing each of iron and lithium in a substantially anhydrous alcohol medium in the presence of anhydrous hydrogen chloride to form an iron/lithium promoted phosphorus-vanadium- oxygen catalyst precursor. The catalyst precursor is recovered, dried, roasted, formed into structures if structures are desired, and calcined.

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