| 20130017947 | CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITYAANM Schermanz; KarlAACI LaunsdorfAACO ATAAGP Schermanz; Karl Launsdorf ATAANM Sagar; AmodAACI AlthofenAACO ATAAGP Sagar; Amod Althofen ATAANM Schoneborn; MarcosAACI HamburgAACO DEAAGP Schoneborn; Marcos Hamburg DEAANM Glockler; ReinerAACI St. MichaelisdonnAACO DEAAGP Glockler; Reiner St. Michaelisdonn DEAANM Dallmann; KaiAACI BrunsbuttelAACO DEAAGP Dallmann; Kai Brunsbuttel DEAANM Alber; FrankAACI HamburgAACO DEAAGP Alber; Frank Hamburg DEAANM Rolfs; SonkeAACI ItzehoeAACO DEAAGP Rolfs; Sonke Itzehoe DE - A process for the preparation of a calcined mixed oxide comprising Al-, Ce- and Zr-oxides, comprising the steps of providing an aqueous slurry comprising hydroxides of cerium and zirconium, contacting the hydroxides of cerium and zirconium with an alumina precursor to obtain an aqueous suspension of solids, isolating the solids from the aqueous suspension and drying to obtain a solid composition, calcining the solid composition of step (c) at a temperature from 450° C. to 1200° C. for at least 1 hour to obtain a calcined mixed oxide. | 01-17-2013 |
