发明名称 COMPOSITION A ACIDITE ELEVEE A BASE D'OXYDE DE ZIRCONIUM, D'OXYDE DE TITANE ET D'OXYDE DE TUNGSTENE,PROCEDE DE PREPARATION ET UTILISATION DANS LE TRAITEMENT DES GAZ D'ECHAPPEMENT
摘要 <p>Compositions useful for treating exhaust gases contain zirconium, titanium and tungsten oxides, and optionally the oxide of an element M selected from among silicon, aluminum, iron, molybdenum, manganese, zinc, tin, and rare earths in the following mass proportions of these different elements: titanium oxide: 20%-50%; tungsten oxide: 1%-20%, M-element oxide: 1%-20%; the balance being zirconium oxide; such compositions are prepared by placing in a liquid medium a zirconium compound, a titanium compound, optionally an M-element compound and a basic compound, adding a tungsten compound to the precipitate suspension thus obtained and having a pH value ranging from 1 to 7, maturing the suspension resulting from the preceding step, and optionally separating the precipitate and calcining same.</p>
申请公布号 FR2907445(B1) 申请公布日期 2010.09.03
申请号 FR20060009223 申请日期 2006.10.20
申请人 RHODIA RECHERCHES ET TECHNOLOGIES;MAGNESIUM ELEKTRON LIMITED 发明人 VERDIER STEPHAN;LARCHER OLIVIER;ROHART EMMANUEL;FEELEY MAIREAD;BRADSHAW HEATHER;HARRIS DEBORAH;BUTLER CLIVE;STEPHENSON HAZEL
分类号 C01G41/02;B01D53/94;B01J21/06;B01J23/30;C01G23/053;C01G25/02 主分类号 C01G41/02
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