Method of preparing a catalytic structure

Details Method of preparing a catalytic structure Method of preparing a catalytic structure

B - Operations, Transporting

01

J

252/47, 252/67

B01J 23/72 (2006.01) B01J 23/86 (2006.01) B01J 35/04 (2006.01) F01N 3/10 (2006.01)

Patent

CA 1080201

ABSTRACT OF THE DISCLOSURE A process for producing a catalyst structure comprised of nickel, chromium and copper and having a stratified surface material formed as a coherent layer on a substrate, said substrate being a nickel- and chromium- containing alloy, comprising: providing a copper-containing coating on the substrate, said substrate containing at least about 10 weight percent chromium; and heating said coated substrate in a protective atmosphere to a temperature of at least the melting point of copper to form a surface area material which is or is capable of being developed into a stratified surface material and a chromium-rich sublayer. The catalyst is particularly useful in the purification of automobile exhaust and industrial waste streams.

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