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특허 상세정보

Oxidation catalyst with bulk ceria, a second bulk metal oxide, and platinum

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01J-023/63    B01J-023/42    B01J-021/06    B01J-021/04   
미국특허분류(USC) 502/304 ; 502/262 ; 423/2155
출원번호 US-0247531 (1994-05-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 85  인용 특허 : 0
초록

Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m2/g and consisting essentially of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica and a2/g. The ceria, second metal oxide and optional activated alumina may be mixed together or provided as discrete layers. Optionally, one of platinum or palladium metal may be dispersed on the catalytic material provided that the platinum, when used, is used in limited ...

대표
청구항

An oxidation catalyst composition comprises a refractory carrier on which is disposed a coating of a catalytic material having a BET surface area of at least about 10 m2/g and consisting essentially of a combination of bulk ceria having a BET surface area of at least about 10 m2/g and a bulk second metal oxide selected from the group consisting of one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica, and a0.1 to 0.5 g/ft3 of platinum dispersed on the catalytic material.

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