Patent ID: 7628968
Filing Date: 2009-12-08
Classification: B01D,B01J

Abstract:
1. A method for treating noxious substances, said method comprising exposing nitrogen oxides to a catalyst comprised of titanium oxide, vanadium oxide and a supported metal oxide, wherein said supported metal oxide is an oxide of tungsten, molybdenum, chromium, scandium, yttrium, lanthanum, zirconium, hafnium, niobium, tantalum, iron, ruthenium, and manganese or mixtures thereof; said supported metal oxide is supported on said titanium oxide thereby forming a titania supported metal oxide; said catalyst is formed by depositing said vanadium oxide on said titania supported metal oxide; and said titania supported metal oxide has an isoelectric point of less than or equal to pH of 3.75 prior to said depositing.