FIELD: chemistry.
SUBSTANCE: claimed invention relates to a method of obtaining a catalyst for the selective catalytic reduction of NOx in a flue gas, containing an alkali metal, with the application of ammonia as the reducing agent, with the catalyst containing a surface with catalytically active centres of Bronsted or Lewis acids, with the surface being, at least, partially covered with a coating, containing, at least, one metal oxide, and the said method includes the supply of a carrier, impregnation of the carrier with the first water solution, containing a vanadium component, drying and calcination of the impregnated carrier, covering the impregnated carrier with the second water suspension, containing, at least, one oxide of a basic metal, representing MgO, and drying and calcination of the coated carrier for the second time.
EFFECT: obtaining the catalyst with an improved resistance to poisoning with alkali metals.
7 cl, 6 dwg, 4 ex
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