FIELD: nitrogen oxides in exhaust gases. SUBSTANCE: invention relates to exhaust gas from nitric acid production and smoke fume from high-temperature furnaces. Catalyst is prepared by way of impregnating alumina carrier having moisture absorption capacity 0.18-0.28 g/cu.cm with palladium acetate (0.92-5.9%) aqueous solution containing additionally 2.2% sodium acetate followed by drying and reduction. EFFECT: enhanced catalyst activity and eliminated toxic wastes. 1 tbl
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