Ammoxidation catalysts containing germanium to produce high yields of acrylonitrile

Abstract

A catalyst having the atomic ratios set forth in the empirical formula below: A.sub.a B.sub.b C.sub.c Ge.sub.d Bi.sub.e Mo.sub.12 O.sub.x where A=two or more of alkali metals, In and Tl B=one or more of Mg, Mn, Ni, Co, Ca, Fe, Ce, Sm, Cr, Sb, and W; preferably B equals the combination of Fe and at least one element selected from the group consisting of Ni and Co and at least one element selected from the group consisting of Mg, Mn, Ca, Ce, Sn, Cr, Sb, and W C=one or more of Pb, Eu, B, Sn, Te and Cu a=0.05 to 5.0 b=5 to 12 c=0 to 5.0 d=0.1 to 2.0 e=0.1 to 2.0 x=the number of oxygen atoms required to satisfy the valency requirements of the other elements and b>a+c.

Dependencies are inferred from the claim text.