The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2018
Filed:
Jul. 13, 2012
Karl Schermanz, Launsdorf, AT;
Amod Sagar, Althofen, AT;
Marcos Schöneborn, Hamburg, DE;
Reiner Glöckler, St. Michaelisdonn, DE;
Kai Dallmann, Brunsbüttel, DE;
Frank Alber, Hamburg, DE;
Sönke Rolfs, Itzehoe, DE;
Karl Schermanz, Launsdorf, AT;
Amod Sagar, Althofen, AT;
Marcos Schöneborn, Hamburg, DE;
Reiner Glöckler, St. Michaelisdonn, DE;
Kai Dallmann, Brunsbüttel, DE;
Frank Alber, Hamburg, DE;
Sönke Rolfs, Itzehoe, DE;
TREIBACHER INDUSTRIE AG, Treibach-Althofen, AT;
SASOL GERMANY GMBH, Hamburg, DE;
Abstract
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.