FIELD: gas treatment. SUBSTANCE: catalyst for purifying effluent gases is prepared by impregnating aqueous suspension of aluminum oxide by palladium tetraammoniate solution at pH 3-5 using mechanochemical treatment in multifunctional disintegrator-activator with impact velocity 130-300 m/s to produce aluminum oxide particles 2-40 mcm large followed by bringing aqueous suspension of aluminum oxide impregnated by precious metal in contact with ceramic carrier having honeycomb structure. EFFECT: improved catalyst preparation procedure. 1 tbl
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