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.

Date of Patent:
Feb. 23, 2021

Filed:

Aug. 14, 2018
Applicants:

Industry Foundation of Chonnam National University, Gwangju, KR;

Korea University Research and Business Foundation, Seoul, KR;

Inventors:

Sung June Cho, Gwangju, KR;

Kwan Young Lee, Seoul, KR;

Soon Hee Park, Gwangju, KR;

Jin Hee Park, Gwangju, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 39/48 (2006.01); C01B 39/02 (2006.01); B01J 29/70 (2006.01);
U.S. Cl.
CPC ...
C01B 39/48 (2013.01); B01J 29/7015 (2013.01); C01B 39/026 (2013.01); C01P 2002/72 (2013.01); C01P 2002/85 (2013.01); C01P 2002/86 (2013.01); C01P 2004/03 (2013.01);
Abstract

Provided is a method for producing zeolite having a controlled aluminum content, wherein the sodium hydroxide molar concentration of a zeolite synthesis mixture can be adjusted to adjust the aluminum content in synthesized CHA. The structure of the low aluminum-content CHA produced by the provided method does not collapse even after high-temperature hydrothermal treatment, and thus the catalytic activity of the CHA can be maintained. Moreover, by adjusting the aluminum content in the framework, the properties of the produced CHA significantly change, and thus the CHA can be applied to various fields.


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