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COMPOSITIONS BASED ON CERIUM OXIDE, ZIRCONIUM OXIDE AND, OPTIONALLY, ANOTHER RARE EARTH OXIDE, H 发明申请

2022-07-31 2610 1013K 0

专利信息

申请日期 2024-09-29 申请号 CA2519192
公开(公告)号 CA2519192A1 公开(公告)日 2004-10-07
公开国别 CA 申请人省市代码 全国
申请人 RHODIA ELECT CATALYSIS
简介 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.


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