Recovery of organic acids from a fermentation broth
US4444881A · kind A · utility
51Cited by
7References
19Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 27, 1983 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Jun 27, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/487
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is provided for the recovery of organic acids from dilute aqueous solutions. The acid in the form of its calcium salt is treated with a tertiary amine carbonate and the resulting trialkylammonium salt of the acid is isolated and heated to give the acid plus a tertiary amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.