Process for preparing furan-2,5-dicarboxylic acid

US10385033B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Alvaro Gordillo · Heidelberg, DE
• Holger Werhan · Wiesloch, DE
• Richard Dehn · Ludwigshafen, DE
• Benoit Blank · Edingen-Neckarhausen, DE
• Joaquim Henrique Teles · Waldsee, DE
• Stephan Schunk · Heidelberg, DE
• Markus Piepenbrink · Telgte, DE
• Rene Backes · Lampertheim, DE
• Lei Zhang · Beijing, CN

Key dates

• Filing date: Jul 1, 2016
• Grant date: Aug 20, 2019
• Expiry date: Jul 1, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing furan-2,5-dicarboxylic acid is disclosed. The process includes the following steps: preparing or providing a starting mixture including 5-(hydroxy-methyl)furfural (HMF), 5,5′-[oxy-bis(methylene)]bis-2-furfural (di-HMF), and water; subjecting said starting mixture to oxidation conditions in the presence of an oxygen-containing gas and a catalytically effective amount of a heterogeneous catalyst including one or more noble metals on a support so that both HMF and di-HMF react to give furane-2,5-dicarboxylic acid in a product mixture also including water and oxidation by-products. The use of a catalyst is also disclosed, the catalyst including one or more noble metals on a support as an heterogeneous oxidation catalyst for catalyzing in an aqueous starting mixture the reaction of both HMF and di-HMF to furane-2,5-dicarboxylic acid.