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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 10889503 B1

PDFFull Text
Date of Patent:
Jan. 12, 2021

Filed:

Nov. 29, 2017

Zeolite having specific ratio of divalent copper ions supported thereon, and preparation method therefor and catalyst composition comprising same

Applicant:

Heesung Catalysts Corporation, Gyeonggi-do, KR;

Inventors:

Mi-young Kim, Gyeonggi-do, KR;

Jin-won Kim, Gyeonggi-do, KR;

Yong Sul Kim, Gyeonggi-do, KR;

Eun-seok Kim, Gyeonggi-do, KR;

Seung Chul Na, Gyeonggi-do, KR;

Hyun-sik Han, Seoul, KR;

Assignee:

HEESUNG CATALYSTS CORPORATION, Gyeonggi-do, KR;

Attorney:

Ballard Spahr LLP

Primary Examiner:

Elizabeth D Wood

Int. Cl.
CPC ...
B01J 29/06 (2006.01); C01B 39/08 (2006.01); B01J 29/76 (2006.01); B01J 35/04 (2006.01); B01J 37/00 (2006.01); B01J 37/08 (2006.01); C01B 39/06 (2006.01); B01J 29/072 (2006.01); B01J 35/00 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
C01B 39/085 (2013.01); B01J 29/072 (2013.01); B01J 29/76 (2013.01); B01J 29/763 (2013.01); B01J 35/0046 (2013.01); B01J 35/0066 (2013.01); B01J 35/04 (2013.01); B01J 37/0009 (2013.01); B01J 37/0018 (2013.01); B01J 37/0036 (2013.01); B01J 37/0045 (2013.01); B01J 37/038 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); C01B 39/06 (2013.01); B01D 53/9418 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01J 2229/18 (2013.01); B01J 2229/183 (2013.01); B01J 2229/186 (2013.01); B01J 2229/30 (2013.01); B01J 2229/42 (2013.01); C01P 2002/72 (2013.01); C01P 2002/80 (2013.01); C01P 2004/03 (2013.01);
Abstract

The present invention relates to zeolite containing Cu2+ (α) and Cu2+ (β) having different NO adsorption capacities loaded at a specific ratio, wherein the zeolite is chabazite (CHA)-type zeolite, particularly chabazite (CHA)-type zeolite loaded with divalent copper ions in which the NO adsorption area ratio of Cu2+ (α)/Cu2+ (β) after exposure to NO (nitrogen oxide) for 180 sec is 80% or more. In addition, the present invention relates to a method of preparing zeolite that is ion-exchanged in a slurry state and to a catalyst including the specified chabazite (CHA)-type zeolite.

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