SAMMENSÆTNING PÅ BASIS AF ET CERIUMOXID, ET ZIRCONIUMOXID OG EVENTUELT ET OXID AF EN ANDEN SJÆLDEN JORDART, MED EN HØJ SPECIFIK OVERFLADE VED 1100° C, FREMGANGSMÅDE TIL FREMSTILLING HERAF OG ANVENDELSE HERAF SOM KATALYSATOR

Composition comprising cerium oxide and zirconium oxide in a cerium/zirconium atomic ratio of at least 1 has a surface area of at least 9 m 2>/g after calcination at 1100[deg]C for 4 hours, or contains another rare earth metal oxide and has a surface area of at least 19 m 2>/g after calcinatio...

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Bibliographic Details
Main Authors LARCHER, Olivier, ROHART, Emmanuel
Format Patent
LanguageDanish
Published 16.08.2021
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Composition comprising cerium oxide and zirconium oxide in a cerium/zirconium atomic ratio of at least 1 has a surface area of at least 9 m 2>/g after calcination at 1100[deg]C for 4 hours, or contains another rare earth metal oxide and has a surface area of at least 19 m 2>/g after calcination at 1100[deg]C for 4 hours. Independent claims are also included for: (1) a process for producing the composition; (2) a catalyst system comprising the composition; (3) internal combustion engine exhaust gas treatment using the composition as a catalyst.
Bibliography:Application Number: DK20040721216T