| 摘要 |
Disclosed herein are catalysts useful for oxidation and ammoxidation of hydrocarbons. Such catalysts have the empirical formula BiMoaMbSbcOx wherein a is 0.5-2, b is 0.05-1, c is 0.1-1.5 and x is selected to satisfy the valence requirements of the other elements present. In such catalysts, M is a metal element selected from Mn, Mg, Ag, Cr, Pb, Fe, Sn, Zn, Ce, Co, Ni, In, Ti, Zr, Tl and U. Catalysts according to the invention are prepared by forming a mixture of a metal antimonate component, a bismuth molybdate component, and optionally a support material and calcining to form the catalyst. Such catalysts are specifically useful for production of acrylonitrile from propylene, ammonia and an oxygen-containing gas. |
