发明名称 |
COMPOSITION CONTAINING OXIDES OF ZIRCONIUM, CERIUM AND AT LEAST ONE OTHER RARE EARTH AND HAVING A SPECIFIC POROSITY, METHOD FOR PREPARING SAME AND USE THEREOF IN CATALYSIS |
摘要 |
The invention relates to a composition that contains zirconium oxide, cerium oxide and yttrium oxide, or zirconium oxide, cerium oxide and at least two oxides of two rare earths different from cerium in a mass proportion of at least 20 % of zirconium oxide and of at most 70 % of cerium oxide, characterized in that said composition comprises, after calcination at 900°C for 4 hours, two populations of pores having respective diameters centered, for the first population, about a value of between 20 and 40 nm and, for the second, about a value of between 80 and 200 nm. The composition can be used for processing exhaust gases of internal combustion engines. |
申请公布号 |
WO2011138255(A3) |
申请公布日期 |
2012.04.19 |
申请号 |
WO2011EP56907 |
申请日期 |
2011.05.02 |
申请人 |
RHODIA OPERATIONS;IFRAH, SIMON;LARCHER, OLIVIER |
发明人 |
IFRAH, SIMON;LARCHER, OLIVIER |
分类号 |
B01J23/00;B01D53/92;B01J23/10;B01J23/63;B01J35/10;B01J37/00;B01J37/03;B01J37/10;C01F17/00;C01G25/00 |
主分类号 |
B01J23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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