Patent ID: 6479691
Filing Date: 2002-11-12
Classification: B01J

Abstract:
A catalyst composition represented by the following empirical formula which is useful in production of unsaturated nitrites by ammoxidation:Mo10BiaFebSbcNidCreFfGgHhKkXxYyOi(SiO2)j wherein Mo, Bi, Fe, Sb, Ni, Cr and K represent molybdenum, bismuth, iron, antimony, nickel, chromium and potassium, respectively, F represents at least one element selected from the group consisting of zirconium, lanthanum and cerium, G represents at least one element selected from the group consisting of magnesium, cobalt, manganese and zinc, H represents at least one element selected from the group consisting of vanadium, niobium, tantalum and tungsten, X represents at least one element selected from the group consisting of phosphorous, boron and tellurium, Y represents at least one element selected from the group consisting of lithium, sodium, rubidium and cesium, O represents oxygen and SiO2 represents silica, the suffixes a, b, c, d, e, f, g, h, i, j, k, x and y represent a ratio of atoms or atomic groups, a=0.1-3, b=0.3-15, c=0-20, d=3-8, e=0.2-2, f=0.05-1, e/f>1, g=0-5, h=0-3, k=0.1, x=0-3, y=0-1, i is the number of oxygen produced by bonding of the above respective components, and j=0-100.