Patent number: 6710011
Abstract: A catalyst composition for the vapor phase ammoxidation of alkanes and olefins of the general empirical formulae:
VSbaMbOx
VSbaMbM′b′Ox
VSbaMbQcOx
VSbaMbQcQ′c′Ox
wherein M and M′ are at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, M and M′ being different, Q and Q′ are at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, Q and Q′ being different, a is 0.5 to 20, b is 2 to 50, b′ is 0 to 50, c is 0 to 10, c′ is 0 to 10 and x is determined by the valence requirements of the elements present.
Type:
Grant
Filed:
December 21, 2001
Date of Patent:
March 23, 2004
Assignee:
Saudi Basic Industries Corporatioin
Inventors:
Edouard A. Mamedov, Kathleen A. Bethke, Shahid N. Shaikh, Armando Araujo, Neeta K. Kulkarni, Andrei Khodakov