Vanadyl pyrophosphate oxidation catalyst precursors

Vanadyl pyrophosphate oxidation catalyst precursors comprise vanadium phosphate esters of the formula (VO)(((R1-x/Hx)OPO3)x((ROH)y/(H2O)z) wherein, R is an alkyl group capable of bonding, through oxygen, to phosphorus to form a phosphate ester; x is 0 to about 0.5; y is 0-1.0; z is 0-1.25; and y+z i...

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Hauptverfasser:	EUGENE MICHAEL MCCARRON III, HAROLD S. HOROWITZ
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Vanadyl pyrophosphate oxidation catalyst precursors comprise vanadium phosphate esters of the formula (VO)(((R1-x/Hx)OPO3)x((ROH)y/(H2O)z) wherein, R is an alkyl group capable of bonding, through oxygen, to phosphorus to form a phosphate ester; x is 0 to about 0.5; y is 0-1.0; z is 0-1.25; and y+z is 0-1.25 are particularly useful for the selective oxidation of butane to maleic anhydride and readily thermally decompose to form the vanadyl pyrophosphate oxidation catalysts.