Patent ID: 6723295
Filing Date: 2004-04-20
Classification: B01D,B01J,Y02C

Abstract:
A process for the catalytic decomposition of pure N2O or N2O contained in a gas mixture, which comprises bringing the N2O or the gas mixture containing N2O into contact with a catalyst at a temperature of 500 to 900Â° C., and wherein the catalyst is a copper-containing catalyst containing a compound of formula MxAl2O4, wherein M is a mixture of Cu with at least one element selected. from the group consisting of Zn and Mg, and x is from 0.95 to 1.1, wherein the catalyst is prepared by a process comprising the following steps:a. preparing a Cu/Al oxide molding, b. impregnating the molding with soluble Cu compounds and at least one compound selected from the group consisting of Mg compounds and Zn compounds, and c. subsequently drying and calcining the impreganted moldings, and wherein, in the process for the preparation of the catalyst, each of Cu, Zn and Mg is used in form of a mixture of oxides and nitrates.