Title:
METHOD OF MANUFACTURING CATALYST STRUCTURES
Document Type and Number:
Japanese Patent JPS5236594
Kind Code:
A
Abstract:
A composite catalytic structure is obtd. by forming a coating contg. Cu on a substrate contg. Ni plus 10 wt. % min. of Cr, the coating contg. less Ni than the substrate. The coated substrate is heated in a protective atmos. to above the m. pt. of Cu to obtain a catalytic structure contg Ni, Cr, and Cu with a stratified surface or which after heating in an atmos. contg. O2 or during its use, develops stratified layers of oxide and an oxidised sub-layer rich in chromium. Used for sepn. of NOx, CO and hydrocarbons in motor vehicle exhaust gas. Provides an inexpensive method of mfg. the catalyst structure by starting from a preformed metal substrate.
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Inventors:
ROBAATO HAABII KAAN
Application Number:
JP10893976A
Publication Date:
March 19, 1977
Filing Date:
September 13, 1976
Export Citation:
Assignee:
INT NICKEL CO
International Classes:
B01J23/86; B01J35/04; (IPC1-7): B01D53/34; B01J23/86; C01B21/02; F01N3/15