发明名称 |
COMPOSITION BASED ON OXIDES OF ZIRCONIUM, PRASEODYMIUM, LANTHANUM OR NEODYMIUM, METHOD FOR THE PREPARATION AND USE THEREOF IN A CATALYTIC SYSTEM |
摘要 |
The composition is based on zirconium oxide and at least one additive selected from zirconium oxide and at least one additive chosen from praseodymium, lanthanum or neodymium oxides, has a specific surface of at least 29 m 2/g after calcination at 1000° C. during a period of 10 hoursand is is obtained by a method wherein a mixture of zirconium compounds and additive is precipitated with a base; the medium thus obtained, containing a precipitate, is heated and a compound chosen from anionic surfactants, non-ionic surfactants, polyethylene glycols, carboxylic acids and the salts thereof and surfactants such as the ethoxylates of caroboxymethyl fatty alcohols is added to the compound and the precipitate is calcinated; the composition can be used as a catalyst. |
申请公布号 |
EP1729883(A2) |
申请公布日期 |
2006.12.13 |
申请号 |
EP20050733136 |
申请日期 |
2005.02.25 |
申请人 |
RHODIA CHIMIE |
发明人 |
LARCHER, OLIVIER;MOISSONNIER, PHILIPPE;ROHART, EMMANUEL |
分类号 |
B01J21/08;B01D53/94;B01J21/06;B01J23/10;B01J23/63;B01J35/10;B01J37/00;B01J37/03;C01F17/00;C01G25/00;C01G25/02 |
主分类号 |
B01J21/08 |
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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