发明名称 |
PROCESS FOR PRODUCING CERIA-ZIRCONIA-ALUMINA COMPOSITE OXIDES AND APPLICATIONS THEREOF |
摘要 |
A process for producing a ceria-zirconia-alumina composite oxide is disclosed. The process comprises combining a cerium (IV) compound and a zirconium (IV) compound with a slurry of aluminum oxide at a temperature greater than 40° C. to produce a reaction slurry, then contacting the reaction slurry with a precipitating agent to precipitate insoluble cerium and zirconium compounds onto the aluminum oxide and form cerium-zirconium-aluminum oxide particles, and calcining the cerium-zirconium-aluminum oxide particles to produce a ceria-zirconia-alumina composite oxide. The process to produce ceria-zirconia-alumina composite oxides provides a material having a high oxygen storage/release capacity that is suitable for a catalyst with enhanced cleaning of the exhaust gases from internal combustion engines.
|
申请公布号 |
US2013108530(A1) |
申请公布日期 |
2013.05.02 |
申请号 |
US201113283123 |
申请日期 |
2011.10.27 |
申请人 |
CHANG HSIAO-LAN;CAUFFMAN SCOTT DANIEL;CHEN HAIYING;ANDERSEN PAUL JOSEPH |
发明人 |
CHANG HSIAO-LAN;CAUFFMAN SCOTT DANIEL;CHEN HAIYING;ANDERSEN PAUL JOSEPH |
分类号 |
B01J21/06;B01D53/94 |
主分类号 |
B01J21/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|