CATALYST, PREPARATION METHOD THEREOF AND USE THEREOF FOR DECOMPOSING NO Russian patent published in 2012 - IPC B01J23/83 B01J23/75 B01J23/10 B01J21/02 B01J35/10 B01J37/02 B01D53/56 B01D53/86 

FIELD: chemistry.

SUBSTANCE: present invention relates to a catalyst for decomposing N₂O, a method of preparing said catalyst and use thereof to decompose laughing gas in exhaust or process gases. Described is a catalyst for decomposing N₂O to nitrogen and oxygen in gas phase with a porous support made from polycrystalline or glass-like inorganic material, consisting of magnesium oxide or ceramic mixed oxides containing at least 50 wt % magnesium oxide on which a functional layer of cerium oxide is deposited and on which a layer of material containing cobalt oxide is deposited. Described is a method of preparing the catalyst which involves preparing said porous support, impregnation thereof with a solution containing a cerium salt, drying and/or calcination, and subsequent impregnation with a cobalt salt solution, drying and/or calcination. The catalysts can particularly be used in apparatus for producing nitric acid as secondary or tertiary catalysts.

EFFECT: high activity and selectivity of the catalyst.

22 cl, 1 tbl, 7 ex