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:
Dec. 26, 2017
Filed:
Dec. 04, 2014
Applicant:
Cataler Corporation, Kakegawa-shi, Shizuoka, JP;
Inventors:
Assignee:
CATALER CORPORATION, Kakegawa-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/10 (2006.01); B01J 23/63 (2006.01); B01J 37/03 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); B01D 53/94 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01J 23/10 (2013.01); B01D 53/945 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 23/63 (2013.01); B01J 35/002 (2013.01); B01J 35/0006 (2013.01); B01J 35/1014 (2013.01); B01J 37/031 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2045 (2013.01); B01D 2255/2061 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2068 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/407 (2013.01); B01D 2255/908 (2013.01); B01D 2255/9202 (2013.01); B01D 2255/9207 (2013.01); B01J 2523/00 (2013.01); F01N 3/2828 (2013.01); Y02T 10/22 (2013.01);
Abstract
The exhaust gas-purifying catalyst of the invention contains oxide particles having interdispersed therein A crystallites that are loaded with a noble metal and B crystallites that are not loaded with a noble metal. The A crystallites loaded with a noble metal are composed of an oxide containing at least one of zirconium (Zr) and cerium (Ce). The B crystallites not loaded with a noble metal are composed of a cerium (Ce)-containing oxide which has a higher Ce content (mol %) than the oxide making up the A crystallites. The oxide particles have a specific surface area after 5 hours of heat treatment at 1,150° C. in open air of 30 m/g or more.