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.:
Date of Patent:
Sep. 27, 2016
Filed:
Mar. 06, 2014
Applicant:
Cj Cheiljedang Corp., Seoul, KR;
Inventors:
In Sung Lee, Seoul, KR;
Jae Hun Yu, Seoul, KR;
Ju Un Park, Osan-si, KR;
Chong Ho Lee, Seoul, KR;
Hideki Murata, Seoul, KR;
Assignee:
CJ CHEILJEDANG CORP., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/80 (2006.01); C07D 213/803 (2006.01);
U.S. Cl.
CPC ...
C07D 213/803 (2013.01); C07D 213/80 (2013.01);
Abstract
Provided is a method for refining quinolinic acid, including the steps of: preparing a fermentation solution including at least one of quinolinic acid and a salt thereof; removing microbial cells from the fermentation solution; preparing an acidic composition containing at least one of quinolinic acid and a salt thereof at a saturation concentration or more by adding an acid to the fermentation solution; and recovering a crystal of least one of quinolinic acid and a salt thereof from the acidic composition.