发明名称 |
CATALYTIC COMPOSITIONS CONTAINING ZIRCONIUM, CERIUM AND YTTRIUM OXIDES AND USE THEREOF IN THE TREATMENT OF EXHAUST GASES |
摘要 |
<p>The invention relates to a composition containing zirconium, cerium and yttrium oxides with a cerium oxide proportion of between 3% and 15%, and yttrium oxide proportions corresponding to the following conditions: 6% at most if the cerium oxide proportion is between 12% excluded and 15% included; 10% at most if the cerium oxide proportion is between 7% excluded and 12% included; 30% at most if the cerium oxide proportion is between 3% and 7% included; the balance consisting of zirconium oxide. The composition may optionally include an oxide of a rare earth selected from lanthanum, neodymium and praseodymium. The composition can be used for processing the exhaust gases of a vehicle.</p> |
申请公布号 |
KR20100139064(A) |
申请公布日期 |
2010.12.31 |
申请号 |
KR20107023722 |
申请日期 |
2009.04.21 |
申请人 |
RHODIA OPERATIONS |
发明人 |
LARCHER OLIVIER;ROHART EMMANUEL;IFRAH SIMON |
分类号 |
B01J23/10;B01D53/94;B01J37/03;B01J37/08 |
主分类号 |
B01J23/10 |
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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