METHOD OF PREPARATION OF PURIFICATION CATALYSTS OF INTERNAL COMBUSTION ENGINES EXHAUST GASES Russian patent published in 2012 - IPC B01J31/02 B01J37/25 B01J23/44 B01J21/16 B01D53/94 

FIELD: chemistry.

SUBSTANCE: invention relates to the method of production of purification catalysts of internal combustion engines exhaust gases; the method of preparation of purification catalysts of internal combustion engines exhaust gases is described herein, the method is characterized by application of cordierite carriers of the cellular structure, formation of the inert layer of aluminum and silicon hydrate on the carrier by means of processing with the caustic soda water solution at the ambient temperature followed by soaking the carrier in the reactor with the inert layer with the cerium salt water solutions and precursor that is represented by perchlorate palladium (II) received directly during the solution of perchlorate palladium (II) in the water in the presence of perchloric acid; thereafter the reduction of palladium by means of hydrogen on the surface of the catalyst is conducted in the above reactor at the atmospheric pressure and ambient temperature.

EFFECT: precipitation and facilitation of the catalysts preparation technology.

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