Patent ID: 6638492
Filing Date: 2003-10-28
Classification: B01D,B01J,Y02C

Abstract:
A method for full oxidation of volatile organic compounds (VOC) comprising a step of contacting the volatile compounds with a catalyst comprising a non-stoichiometric crystalline compound designated by a formula which corresponds to Al14Cu24O41 (I), where A is Sr or a solid solution of Sr with alkaline-earth metals, alkaline metals, lanthanides; or a non-stoichiometric crystalline compound designated by a formula which corresponds to B4Cu5O10 (II), where B is Ca or a solid solution of Ca with alkaline-earth metals, alkaline metals, lanthanides; or mixtures thereof, the catalyst being prepared in a form which has a large specific surface area, wherein the catalyst comprises 5% to 20% by weight of a non-stoichiometric crystalline compound designated by a formula which corresponds to A14Cu24O41 (I), where A is Sr or a solid solution of Sr with alkaline-earth metals, alkaline metals, lanthanides; or a non-stoichiometric crystalline compound designated by a formula which corresponds to B4Cu5O10 (II), where B is Ca or solid solution of Ca with alkaline-earth metals, alkaline metals, lanthanides; or mixtures thereof.