| 摘要 |
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. |
