Method and integrated process for the carboxylation of furan derived carboxylic acids to 2,5-furandicarboxylic acid
US11708343B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 16, 2021 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for carboxylation of a furoate slurry to produce FDCA, especially 2,5-FDCA, includes the steps of: feeding a slurry containing a suspension fluid, furoate, a surfactant and an alkali metal carbonate to a carboxylation reactor; and feeding a flow of CO2 to the carboxylation reactor at flow conditions sufficient to suspend the slurry in the reactor and react the furoate with CO2 to form 2,5-FDCA. A fully integrated process is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.