公开(公告)号：US20160052885A1

公开(公告)日：2016-02-25

申请号：US14779886

申请日：2014-03-06

Applicant: CJ CHEILJEDANG CORP.

Inventor： In Sung LEE ,  Jae Hun YU ,  Ju Un PARK ,  Chong Ho LEE ,  Hideki MURATA

IPC: C07D213/803

CPC classification number: C07D213/803 ,  C07D213/80

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.

Abstract translation: 提供了一种用于精制喹啉酸的方法，包括以下步骤：制备包含至少一种喹啉酸及其盐的发酵溶液; 从发酵液中除去微生物细胞; 通过向发酵液中添加酸，以饱和浓度或更高浓度制备含有至少一种喹啉酸及其盐的酸性组合物; 并从酸性组合物中回收至少一种喹啉酸及其盐的结晶。