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:
Oct. 01, 2019
Filed:
Nov. 03, 2016
Basf SE, Ludwigshafen am Rhein, DE;
Alvaro Gordillo, Heidelberg, DE;
Martin Alexander Bohn, Mannheim, DE;
Stephan A. Schunk, Heidelberg-Rohrbach, DE;
Ivana Jevtovikj, Heidelberg, DE;
Rene Backes, Lampertheim, DE;
Holger Werhan, Rauenberg, DE;
Svenia Duefert, Ludwigshafen, DE;
Richard Dehn, Ludwigshafen, DE;
Markus Piepenbrink, Telgte, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
Provided herein is a process for preparing furan-2,5-dicarboxylic acid. The process includes the following steps: (A-1) preparing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of: hexoses, oligosaccharides comprising hexose units, and polysaccharides including hexose units, and as a solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of a formula (II) and (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, resulting in a mixture including 5-(hydroxymethyl)furfural and/or the one or more HMF esters of a formula (I), one or more carboxylic acids of a formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).