发明名称 |
HIGHLY ACIDIC COMPOSITION CONTAINING ZIRCONIUM AND SILICON OXIDES AND AN OXIDE OF AT LEAST ONE ELEMENT SELECTED FROM TITANIUM, ALUMINIUM, TUNGSTEN, MOLYBDENUM, CERIUM, IRON, TIN, ZINC, AND MANGANESE |
摘要 |
The invention relates to a composition containing zirconium oxide, silicon oxide and an oxide of an element M selected from titanium, aluminium, tungsten, molybdenum, cerium, iron, tin, zinc, and manganese, in the following mass proportions of said different elements: silicon oxide : 5%-30%; de M-element oxide : 1%-20%; the balance consisting of zirconium oxide. The composition further has an acidity, as measured by the methylbutynol test, of at least 90 %. The composition can be prepared according to a method that involves placing a zirconium compound, a silicon compound, an M-element compound and a basic compound in a liquid medium, thereby generating a precipitate; maturing said precipitate in a liquid medium; and separating and calcining the precipitate. The composition can be used for processing the exhaust gases of diesel engines. |
申请公布号 |
KR20090082186(A) |
申请公布日期 |
2009.07.29 |
申请号 |
KR20097007965 |
申请日期 |
2007.10.19 |
申请人 |
RHODIA OPERATIONS;MAGNESIUM ELEKTRON LTD. |
发明人 |
LARCHER OLIVIER;ROHART EMMANUEL;VERDIER STEPHAN;BRADSHAW HEATHER;BUTLER CLIVE;HARRIS DEBORAH;FEELEY MAIREAD;CRINIERE GUILLAUME |
分类号 |
B01J21/06;B01D53/94;B01J23/30;F01N3/10 |
主分类号 |
B01J21/06 |
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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