Method for refining quinolinic acid
US9452983B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Mar 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.