METHOD PREPARING NANOCATALYST FOR OXIDATION OF CARBON OXIDE Russian patent published in 2010 - IPC B28B3/00 B01J37/02 B01J21/04 B01J23/40 B01D53/94 B03D1/08 B22F9/24 C02F1/24 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of preparing an afterburning catalyst in industry and motor cars. Described is a method of preparing a nanocatalyst for oxidation of carbon oxide, involving impregnation with γ-Al₂O₃ solution which contains ions of platinum-group metals obtained from precursor ions of platinum-group metals and cationic surfactants through extraction and floatation extraction from wastes with subsequent reduction in direct and reverse micelles to nanoparticles, destruction of the dispersion of reverse micelles by centrifuging to seperate nanoparticles of platinum-group metals with the surfactant in an aqueous solution, bringing the pH of the solution to 9-11, preparation of an aqueous paste of γ-Al₂O₃ with pH=9-11 with subsequent drying in air or under a vacuum and burning at 500-550°C. A composition containing 2-5% nanoparticles of platinum-group metals and 95-98% γ-Al₂O₃ in the catalyst is obtained using the described method.

EFFECT: obtaining a highly active catalyst for deep oxidation of carbon oxide.

2 cl, 2 ex