Catalytic converter supports and catalytic converters for the treatment of engine exhaust gases and processes for their production.

摘要

Catalyst for the treatment of exhaust gases of internal combustion engines of the monolithic type comprising a support or substrate coated with a porous layer onto which a catalytically active phase is impregnated, the porous layer comprising alumina, a rare-earth oxide such as cerium oxide and a spinel-type compound exhibiting a specific surface of between 50 m2/g and 300 m2/g.