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:
May. 20, 2014
Filed:
May. 07, 2007
Olivier Larcher, Pennington, NJ (US);
Emmanuel Rohart, Sainte Soulle, FR;
Stephan Verdier, Lyons, FR;
Olivier Larcher, Pennington, NJ (US);
Emmanuel Rohart, Sainte Soulle, FR;
Stephan Verdier, Lyons, FR;
Rhodia Operations, Aubervilliers, FR;
Abstract
Catalyst/catalyst support composition essentially consist of oxides of zirconium, cerium and lanthanum and of another rare earth selected from among yttrium, gadolinium and samarium, having a proportion of the lanthanum oxide and the oxide of the other rare earth of at least 15% and specific surfaces of at least 40 m/g and at least 15 m/g after calcination respectively for 4 hours at 1,000° C. and 10 hours at 1,150° C.; after calcination for 10 hours at 1,200° C. these have a surface of at least 7 m/g and such surface is at least 5 m/g for an embodiment in which after 10 hours of calcination at 1,150° C. the composition is in the form of a pure solid solution.