Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plant
US10526301B1 · kind B1 · utility
13Cited by
43References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 10, 2019 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The esterification zone comprises at least one reactor that has been previously used in an DMT process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.