Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plant
US10421736B2 · kind B2 · utility
15Cited by
42References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2018 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Mar 20, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/785
- WIPO fieldChemical engineering
- 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.