OZONE DECOMPOSITION CATALYST AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC B01J23/34 B01J37/02 B01J23/68 B01J23/10 B01J35/04 B01J37/08 B01D53/66 

FIELD: chemistry.

SUBSTANCE: invention relates to catalytic purification of air from oxygen-containing impurities, such as ozone, and can be used particularly for removing ozone from air. Described is a manganese dioxide-based ozone decomposition catalyst made from reticulated open-cell polyurethane in form of a plate and additionally contains perovskite - lanthanum manganate doped with silver, with the following ratio of components, wt %: manganese dioxide 5-15, lanthanum manganate 2-10, silver (niello) 0.1-0.5, reticulated open-cell polyurethane - the balance. Described is a method of producing a catalyst, which involves drying and heat treatment, wherein heat treatment in air for 2-3 hours at temperature of 300°C is carried out on a solution which contains the following, wt %: hexahydrate manganese nitrate 45-55; lanthanum manganate - 20-25; silver nitrate - 0.1-0.5, after which the obtained composition, having said makeup, is ground, particles smaller than 10 mcm are selected and then deposited on a highly porous permeable matrix made from reticulated open-cell foamed polyurethane and pre-treated with an adhesive solution of a prepolymer of polyurethane - high molecular weight products of polyaddition of diisocyanates with polyols, curable by air moisture.

EFFECT: obtaining a highly efficient catalyst for decomposing ozone in air at room temperature, which withstands a load of up to 25000 inverse hours, as well as low labour input, material consumption and power consumption of producing said catalyst.

2 cl, 2 dwg, 2 ex