Patent ID: 6921836
Filing Date: 2005-07-26
Classification: B01J,C01G,C01P,C07C

Abstract:
1. A multimetal oxide material of the formula I where A is Mo B is X C is X X X X X X X X X a is from 1 to 8, b is from 0.2 to 5, c is from 0 to 23, d is from 0 to 50, e is from 0 to 2, f is from 0 to 5, g is from 0 to 50 h is from 0.3 to 2.5, i is from 0 to 2, j is from 0.05 to 50, k is from 0 to 50, x, y and z are numbers which are determined by the valency and frequency of the elements other than oxygen in (I) and p, q and r are numbers other than zero, with the proviso that the ratio p/(q+r) is from 20:1 to 1:20, and the ratio q/r is from 20:1 to 1:20, which contains the moiety [A] the moiety [B] the moiety [C] the regions A, B and C being distributed relative to one another in the same way as in a mixture comprising finely divided A, finely divided B and finely divided C.