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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.:

US 10350581 B1

PDFFull Text
Date of Patent:
Jul. 16, 2019

Filed:

Nov. 27, 2013

Catalyst composition for exhaust gas purification and catalyst for exhaust gas purification

Applicant:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Inventors:

Yuki Nagao, Saitama, JP;

Michitaka Yamaguchi, Saitama, JP;

Yunosuke Nakahara, Saitama, JP;

Masato Machida, Kumamoto, JP;

Assignee:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Michael Forrest

Int. Cl.
CPC ...
B01D 53/94 (2006.01); B01J 23/50 (2006.01); B01J 23/72 (2006.01); B01J 23/75 (2006.01); B01J 23/83 (2006.01); B01J 23/86 (2006.01); B01J 23/89 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 35/04 (2006.01); B01J 37/34 (2006.01); B01J 23/745 (2006.01); B01J 23/755 (2006.01); B01J 23/889 (2006.01);
U.S. Cl.
CPC ...
B01J 23/894 (2013.01); B01D 53/944 (2013.01); B01D 53/945 (2013.01); B01J 23/50 (2013.01); B01J 23/72 (2013.01); B01J 23/745 (2013.01); B01J 23/75 (2013.01); B01J 23/755 (2013.01); B01J 23/83 (2013.01); B01J 23/868 (2013.01); B01J 23/8892 (2013.01); B01J 35/002 (2013.01); B01J 35/026 (2013.01); B01J 35/04 (2013.01); B01J 37/349 (2013.01); B01D 2255/104 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20746 (2013.01); B01D 2255/20753 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/9207 (2013.01); F01N 2510/06 (2013.01); Y02T 10/22 (2013.01);
Abstract

The invention relates to a catalyst composition using other metals different from precious metals as a catalytically active component and is to propose a novel catalyst composition for exhaust gas purification which has excellent catalytic activity, in particular, excellent treatment activity of HC even after a thermal durability treatment. The invention is to propose a catalyst composition for exhaust gas purification comprising catalyst particles having a constitution in which Cu and a transition metal A including at least one of Cr, Fe, Mn, Co, Ni, Zr, and Ag are supported on ceria (CeO) particles and a catalyst using the same.

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