Cooperative properties of the individual phases of a complex oxide catalyts for the oxidation of propylene to acrolein

A synergistic effect has been detected of the increase in the yield of acrolein in the oxidation of propylene on the mechanical mixture of (α+β)CoMoO 4 and MoO 3 and of the yield of CO and CO 2 , on a mixture of CoMoO 4 and Bi 2 O 3 .2MoO 3 . It has been shown that CoMoO 4 generates allyl radicals, which are virtually not desorbed from MoO 3 , bismuth molybdates, and Fe 2 O 3 .3MoO 3 into the gas phase