Bærerblanding basert pÕ et ceriumoksyd, et zirkoniumoksyd eller et scandiumoksyd eller oksyd av sjeldent jordmetall og anvendelse for behandling av avløpsgasser

摘要

A composition is disclosed for reducing nitrogen oxide emissions from gases which comprises a support based on a cerium oxide, a zirconium oxide and an oxide of scandium or a rare earth other than cerium, and a supported phase based on manganese and at least one other element which is an alkali metal, alkaline-earth metal or a rare earth.