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:
Jan. 29, 2019
Filed:
Nov. 21, 2011
Applicants:
Simon Ifrah, La Jarrie, FR;
Olivier Larcher, Perigny, FR;
Inventors:
Simon Ifrah, La Jarrie, FR;
Olivier Larcher, Perigny, FR;
Assignee:
Rhodia Operations, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/20 (2006.01); B01J 23/00 (2006.01); B01J 23/10 (2006.01); B01J 35/10 (2006.01); C01G 25/02 (2006.01); B01J 37/03 (2006.01); B01J 21/06 (2006.01); B01J 23/46 (2006.01); B01D 53/94 (2006.01); B01J 23/02 (2006.01);
U.S. Cl.
CPC ...
B01J 23/20 (2013.01); B01D 53/945 (2013.01); B01J 21/066 (2013.01); B01J 23/002 (2013.01); B01J 23/10 (2013.01); B01J 23/464 (2013.01); B01J 35/109 (2013.01); B01J 35/1009 (2013.01); B01J 35/1014 (2013.01); B01J 35/1047 (2013.01); B01J 35/1061 (2013.01); B01J 35/1066 (2013.01); B01J 37/031 (2013.01); C01G 25/02 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2061 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2068 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/40 (2013.01); B01D 2255/92 (2013.01); B01D 2255/9202 (2013.01); B01J 23/02 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01); C01P 2006/17 (2013.01); Y02T 10/22 (2013.01);
Abstract
A composition of zirconium oxide and at least one oxide of a rare earth other than cerium is described. The zirconium oxide has a weight proportion of at least 50% and, after calcination at a temperature of 900° C. for 4 hours, the composition exhibits two populations of pores of which their respective diameters are centered. The diameter of the first pore has a value of from 20 nm to 40 nm and in the second pore has a value of from 80 nm to 200 nm. Further described is how the composition can be used for treating the exhaust gases of internal combustion engines.