Patent ID: 6245931
Filing Date: 2001-06-12
Classification: C07C,Y02P

Abstract:
A process for producing acrylonitrile or methacrylonitrile, which comprises reacting propylene with, or reacting isobutylene with ammonia and molecular oxygen in the gaseous phase in the presence of an oxide catalyst composition comprising:(a) an oxide catalyst represented by the following formula:Mo.sub.m Bi.sub.b Fe.sub.f Ni.sub.n Q.sub.q A.sub.a E.sub.e O.sub.x (I)wherein:Q is a mixture of chromium and indium,A is at least one element selected from the group consisting of potassium, rubidium and cesium,E is at least one element selected from the group consisting of manganese, magnesium, zinc, cerium, sodium and phosphorus, andm, b, f, n, q, a, e and x are the relative atomic ratios of molybdenum, bismuth, iron, nickel, Q, A, E and oxygen, respectively,whereinm is a number of from 10 to 14,b is a number of from 0.1 to 3,f is a number of from 0.1 to 3,n is a number of from 4 to 10,q is a number of from 0.1 to 2,a is a number of from 0.01 to 0.5,e is a number of from 0 to 3, andx is determined by the valence requirements of the other elements present; and(b) a silica carrier having said oxide catalyst supported thereon, wherein said silica carrier is present in an amount of from 40 to 60% by weight, based on the total weight of said oxide catalyst and said silica carrier.