Process for producing material for the catalytically active section in the cleaning catalyser for exhaust gases

摘要

The invention relates to the manufacturing process for metal mixed oxide catalytic material of CaTiO3 structure for use as the cleaning catalyser for exhaust gases, combustion gases or waste gases. The catalytic material is produced by a metal mixture, consisting of elements having the ordinal numbers 23...29 and 57...71 in the periodic system and optionally other elements, being rapidly solidified from molten to homogenic composition, after which the metal mixture is oxidized at high temperature into an oxide catalyst, which consists of metal mixed oxide of CaTiO3 structure and optionally metallic fibres and other oxides. Optionally, the metal mixture can be rapidly solidified in the form of band or foil, which can be constituted in cellulose form prior to oxidization, or in the form of powder, after which the produced catalytic material can be mixed with carrier substance.