| abstract |
A catalytic composition containing iron antimoniate, represented by the following empirical formula and that can be used in the production of unsaturated nitriles by amoxidation: Mo10BiaFebSbcNidCreFfGgHhKkXxYyOi (SiO2) j in which Mo, Bi, Fe, Sb, Ni, Cr and K represent molybdenum, bismuth, iron, antimony, nickel, chromium and potassium, respectively, F represents at least one element that is chosen in the group consisting of zirconium, lanthanum and cerium, G represents at least one element that is chosen in the group formed by magnesium, cobalt, manganese and zinc, H represents at least one element that is chosen in the group consisting of vanadium, niobium, tantalum and tungsten, X represents at least one element that is chosen in the group consisting of phosphorus, boron and tellurium, And it represents at least one element that is chosen in the group consisting of lithium, sodium, rubidium and cesium, O represents oxygen and SiO2 represents silica, the subscripts a, b, c, d, e, f, g, h, i, j, k, xey represent They have a relation of atoms or atomic groups, and in the case of Mo = 10, a = 0, 1-3, b <0, 3-15, c is greater than 0 but not greater than 20, d = 3-8, e = 0, 2-2, f = 0, 05-1, e / f> 1, g = 0-5, h = 0-3, k = 0, 1-1, x = 0-3, y = 0-1, i is the number of oxygen produced by the bond of the respective previous components, and j = 0-100. |