PROCESS FOR THE PREPARATION OF 2,5-FURANDICARBOXYLIC ACID (FDCA) BY OXIDATION OF 5-(HYDROXYMETHYL)FURFURAL (HMF) OR 5-(ALKYLOXYMETHYL)FURFURAL (AMF) WITH OXYGEN IN THE PRESENCE OF A CO(II) OR CE(III) CATALYST, A BROMIDE SALT AND A SOLVENT

摘要

A process for the preparation of 2,5-furandicarboxylic acid (FDCA) by oxidation of 5-(hydroxymethyl)furfural (HMF) or 5-(alkyloxymethyl)furfural (AMF) with oxygen in the presence of a Co(II) or Ce(III) catalyst, a bromide salt and a solvent.;AMF is oxidized to the intermediate compound 5-(alkoxycarbonyl)furancarboxylic acid (AcMFA), which is then hydrolysed to FDCA.;The process is carried out preferably at T=80-130 °C and 800-1000 psi.;Acetic acid is the preferred solvent.