Oxidation catalysts and process for preparing anhydride from alkanes

摘要

A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e.g., converting normal C4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Cu, Mo, Ni, Co, Cr, Nd, Ce, Ba, Y and Sm.