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:
Dec. 22, 2011
Applicants:
Ko Ariga, Shunan, JP;
Hidekazu Aoyama, Shunan, JP;
Yuuki Ito, Shunan, JP;
Inventors:
Assignee:
TOSOH CORPORATION, Shunan-shi, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 29/06 (2006.01); B01J 29/76 (2006.01); C01B 39/48 (2006.01); B01D 53/56 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
B01J 29/763 (2013.01); B01D 53/565 (2013.01); B01D 53/9418 (2013.01); C01B 39/48 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01J 2229/186 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The chabazite-type zeolite of the present invention has a SiO/AlOmolar ratio of less than 15, and an average particle size from 1.0 μm to 8.0 μm. The chabazite-type zeolite of the present invention has excellent durability and heat resistance, and the copper-loaded chabazite-type zeolite has an improved NOx reduction rate at low temperatures compared to conventional copper-loaded chabazite-type zeolite.