CATALYST FOR CLEANING EXHAUST GASES AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC B01J23/63 B01J23/58 B01J23/656 B01J23/89 B01D53/94 F01N3/10 F01N3/24 F01N3/28 B01J37/04 

FIELD: chemistry.

SUBSTANCE: present invention relates to a catalyst for cleaning exhaust gases of an internal combustion engine and a method of producing said catalyst. The catalyst for cleaning exhaust gases (1) according to the present invention contains particles which simultaneously contain carrier/promoter particles in cladding material (5), which include catalyst blocks (13) which contain particles of a noble metal (8) and carrier particles (9) as holding material for the particles of the noble metal (8), carrying particles of the noble metal (8); promoter blocks (14), for which there is contact with particles of the noble metal (8) and which contain particles of a first promoter (11), capable of accumulating and releasing oxygen; and cladding material (12) which encloses the catalyst blocks (13) and promoter blocks (14) and separates particles of the noble metal (8) and the carrier particles (9) in the catalyst blocks (13) from particles of the first promoter (11) in the promoter blocks (14). The catalyst for cleaning exhaust gases (1) contains particles of a second promoter (6), which are capable of accumulating and releasing oxygen and are not enclosed by the cladding material (12) in the particles, simultaneously containing carrier/promoter particles in the cladding material (5).

EFFECT: described is a method of producing a catalyst, which involves grinding composite particles separately or together and mixing thereof; described is a method of cleaning gases using the catalyst described above.

17 cl, 10 dwg, 5 tbl, 24 ex