Process for the production of 2, 5-furandicarboxylic acid (FDCA)

The present invention relates to a process for the production of 2,5-furandicarboxylic acid (FDCA) via oxidation of 5-hydroxymethyl-2-furfural (HMF), said HMF being present in a solution in a high-boiling polar solvent and water. The process is characterized by the combination of -a first oxidation...

Full description

Saved in:
Bibliographic Details
Main Authors Tekautz, Gunter, Linhart, Walter, Kirschneck, Dirk
Format Patent
LanguageEnglish
Published 11.06.2019
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:The present invention relates to a process for the production of 2,5-furandicarboxylic acid (FDCA) via oxidation of 5-hydroxymethyl-2-furfural (HMF), said HMF being present in a solution in a high-boiling polar solvent and water. The process is characterized by the combination of -a first oxidation step wherein the HMF is at least partly oxidized in said solution to yield a first reaction mixture comprising at least one monoacid selected from the group consisting of -hydroxymethylfuran-2-carboxylic acid (HMFA), 5-formylfuran-2-carboxylic acid (FFCA) and, optionally, FDCA -an extraction step after the first oxidation step wherein said high-boiling polar solvent is extracted from said first reaction mixture by means of an extraction solvent, wherein said at least one monoacid remains in an aqueous phase, -a second oxidation step wherein said at least one monoacid is oxidized to FDCA.
Bibliography:Application Number: US201616060382