| abstract |
Mo-, Bi- and Fe-comprising multimetal oxide compositions of the general stoichiometry I, n Mo 12 Bi a Co b Fe c K d Si e O x (I),n where a=0.5 to 1, b=7 to 8.5, c=1.5 to 3.0, d=0 to 0.15, e=0 to 2.5 and x=the stoichiometric coefficient of O 2− which guarantees the electric neutrality of the multimetal oxide, and nn 12− b −1.5· c=A and 0.5≦ A ≦1.5,n n 0.2≦ a/A ≦1.3, andn n 2.5≦ b/c ≦9,n and the use thereof. |