The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Jul. 01, 2016
Basf SE, Ludwigshafen am Rhein, DE;
Alvaro Gordillo, Heidelberg, DE;
Holger Werhan, Rauenberg, DE;
Richard Dehn, Ludwigshafen, DE;
Benoit Blank, Edingen-Neckarhausen, DE;
Joaquim Henrique Teles, Waldsee, DE;
Stephan A Schunk, Heidelberg-Rohrbach, DE;
Markus Piepenbrink, Telgte, DE;
Rene Backes, Lampertheim, DE;
Lei Zhang, De Meern, NL;
BASF SE, Ludwigshafen am Rhein, DE;
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.