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. 21, 2023
Filed:
Dec. 22, 2017
Applicant:
Rhodia Operations, Paris, FR;
Inventors:
Lama Itani, Courbevoie, FR;
Julien Hernandez, Antony, FR;
Barry William Luke Southward, Chicago, IL (US);
Assignee:
RHODIA OPERATIONS, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/10 (2006.01); B01D 53/94 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01); C01G 25/00 (2006.01); C01G 27/00 (2006.01);
U.S. Cl.
CPC ...
B01J 23/10 (2013.01); B01D 53/945 (2013.01); B01J 35/0026 (2013.01); B01J 35/026 (2013.01); B01J 35/1014 (2013.01); B01J 35/1061 (2013.01); B01J 37/0236 (2013.01); B01J 37/031 (2013.01); B01J 37/04 (2013.01); B01J 37/06 (2013.01); B01J 37/088 (2013.01); C01G 25/006 (2013.01); C01G 27/006 (2013.01); B01D 2255/2061 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2066 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/407 (2013.01); B01D 2255/908 (2013.01); B01D 2255/9202 (2013.01); B01D 2255/9205 (2013.01); B01D 2255/9207 (2013.01); C01P 2002/50 (2013.01); C01P 2002/72 (2013.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01);
Abstract
The present invention relates to a mixed oxide of aluminium, of zirconium, of cerium, of lanthanum and optionally of at least one rare-earth metal other than cerium and lanthanum that makes it possible to prepare a catalyst that retains, after severe ageing, a good thermal stability and a good catalytic activity. The invention also relates to the process for preparing this mixed oxide and also to a process for treating exhaust gases from internal combustion engines using a catalyst prepared from this mixed oxide.