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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 11577190 B1

PDFFull Text
Date of Patent:
Feb. 14, 2023

Filed:

Apr. 27, 2018

Recovered-carbon-dioxide purifying method and methionine manufacturing method including recovered-carbon-dioxide purifying step

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Ryosuke Iwasaki, Niihama, JP;

Takuya Katayama, Niihama, JP;

Norihito Omoto, Niihama, JP;

Yoshiyuki Koizumi, Niihama, JP;

Ryousuke Katagami, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Elizabeth D Wood

Int. Cl.
CPC ...
B01D 53/02 (2006.01); B01D 53/96 (2006.01); B01J 20/20 (2006.01); B01J 20/28 (2006.01); C07C 319/20 (2006.01); C07C 319/28 (2006.01); B01D 9/00 (2006.01); C07C 323/57 (2006.01);
U.S. Cl.
CPC ...
B01D 53/02 (2013.01); B01D 53/96 (2013.01); B01J 20/20 (2013.01); B01J 20/28066 (2013.01); B01J 20/28071 (2013.01); B01J 20/28073 (2013.01); C07C 319/20 (2013.01); C07C 319/28 (2013.01); B01D 9/005 (2013.01); C07C 323/57 (2013.01);
Abstract

The present invention provides a method for purifying carbon dioxide gas characterized in that carbon dioxide gas containing at least one of 3-methylmercaptopropionaldehyde and acrolein is contacted with activated carbon to remove at least one of the 3-methylmercaptopropionaldehyde and acrolein. The present invention provides also a method for producing methionine comprising the purification step of the recovered carbon dioxide.

Find Patent Forward Citations

Iwasaki, Ryosuke. (2023). Recovered-carbon-dioxide purifying method and methionine manufacturing method including recovered-carbon-dioxide purifying step (U.S. Patent No. 11577190). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11577190

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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