摘要:
PROBLEM TO BE SOLVED: To provide a mixed metal oxide catalyst containing vanadium and antimony for the ammoxidation of paraffins into unsaturated mononitriles, in particular for the ammoxidation of propane and isobutane into acrylonitrile and methacrylonitrile, respectively. SOLUTION: The catalyst composition includes a compound represented by the formula: VSb a M b O x (wherein V is vanadium; Sb is antimony; M is at least one element selected from the group consisting of magnesium, aluminum, zirconium, silicon, hafnium, titanium, and niobium; a is from 0.5 to 20, b is from 2 to 50; x is determined by the valence requirements of the other elements present; and vanadium and antimony are isolated in a matrix of the oxides of M). COPYRIGHT: (C)2009,JPO&INPIT