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 |
KR20140087017(A) |
申请公布日期 |
2014.07.08 |
申请号 |
KR20147013758 |
申请日期 |
2012.10.18 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
CHANG HSIAO LAN;CAUFFMAN SCOTT DANIEL;CHEN HAI YING;ANDERSEN PAUL JOSEPH |
分类号 |
B01J23/10;B01D53/94;B01J21/12;B01J37/03;B01J37/08 |
主分类号 |
B01J23/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|