Process for manufacturing succinic acid from a fermentation broth using nano filtration to purify recycled mother liquor
US10189767B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 1, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/43
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for manufacturing succinic acid as obtained by fermentation is provided including crystallizing the succinic acid from an aqueous solution, separating the crystals from the mother liquor, treating the mother liquor by nanofiltration and recycling the treated mother liquor to the crystallization step. This process exhibits a high yield in terms of succinic acid crystals recovery and allowing to achieve a final product with a low content of saccharides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.