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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 9656238 B1

PDFFull Text
Date of Patent:
May. 23, 2017

Filed:

Jul. 16, 2013

Fe(ii)-substituted beta-type zeolite, production method therefor and gas adsorbent including same, and nitric oxide and hydrocarbon removal method

Applicants:

Unizeo Co., Ltd., Tokyo, JP;

The University of Tokyo, Tokyo, JP;

Inventors:

Masaru Ogura, Tokyo, JP;

Keiji Itabashi, Tokyo, JP;

Tatsuya Okubo, Tokyo, JP;

Shanmugam Palani Elangovan, Tokyo, JP;

Assignee:

UniZeo Co., Ltd., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Frank Lawrence

Int. Cl.
CPC ...
B01D 53/56 (2006.01); B01J 20/18 (2006.01); C01B 39/46 (2006.01); B01D 53/02 (2006.01); B01D 53/94 (2006.01); B01J 20/28 (2006.01); B01J 29/76 (2006.01); B01D 53/04 (2006.01); B01J 20/30 (2006.01); C01B 39/02 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
B01J 20/18 (2013.01); B01D 53/02 (2013.01); B01D 53/04 (2013.01); B01D 53/9481 (2013.01); B01J 20/186 (2013.01); B01J 20/28057 (2013.01); B01J 20/28071 (2013.01); B01J 20/3085 (2013.01); B01J 29/7615 (2013.01); C01B 39/02 (2013.01); C01B 39/46 (2013.01); F01N 3/0835 (2013.01); F01N 3/0842 (2013.01); B01D 2253/108 (2013.01); B01D 2253/1085 (2013.01); B01D 2253/1122 (2013.01); B01D 2253/306 (2013.01); B01D 2253/311 (2013.01); B01D 2257/404 (2013.01); B01D 2257/702 (2013.01);
Abstract

The purpose of/problem to be addressed by the present invention is to provide: an Fe(II)-substituted beta-type zeolite useful for the catalytic removal of a variety of gases; and a production method therefor. The SiO/AlOratio in this Fe(II)-substituted beta-type zeolite is equal to or more than 7 but less than 10. This Fe(II)-substituted beta-type zeolite is obtained by being subjected to ionic exchange with Fe(II) ions. It is preferable that the Fe(II) loading amount be in the range of 0.001-0.4 mmol/g of the Fe(II)-substituted beta-type zeolite. It is preferable that the Fe(II)-substituted beta-type zeolite be produced using a method in which a beta-type zeolite having an SiO/AlOratio of equal to or more than 7 but less than 10 is dispersed in an Fe(II) water-soluble-compound aqueous solution, and then mixed and agitated to cause the beta-type zeolite to carry Fe(II) ions.

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