Process for the production of unsaturated acids and esters

摘要

Saturated, lower aliphatic acids and esters are oxydehydrogenated to the corresponding unsaturated acids and esters by use of a catalyst of the empirical formula: Mo12P0.1-3Bi0.01-2M0.1-3Cu0.01-2V0.01-3XaM'bOc (I) where M is at least one of K, Rb and Cs; X is at least one of Ba, Zn, Ga, Cd, Ti, when a>0; M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0; a is a number of 0 to about 2; b is a number of 0 to about 2; and c is a number that satisfies the valence requirements of the other elements present.