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:
Jan. 21, 2020
Filed:
Apr. 13, 2016
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Archer Daniels Midland Company, Decatur, IL (US);
Stephen J. Howard, Sherman, IL (US);
Kristina A. Kreutzer, Wilmington, DE (US);
Bhuma Rajagopalan, Wilmington, DE (US);
Eric R. Sacia, Wilmington, DE (US);
Alexandra Sanborn, Lincoln, IL (US);
Brennan Smith, Decatur, IL (US);
DUPONT INDUSTRIAL BIOSCIENCES USA, LLC, Wilmington, DE (US);
ARCHER DANIELS MIDLAND COMPANY, Decatur, IL (US);
Abstract
An integrated process is described for producing 2,5-furandicarboxylic acid and/or a derivative thereof from a six carbon sugar-containing feed, comprising: a) dehydrating a feed comprising a six-carbon sugar unit, in the presence of a bromine source and of a solvent, to generate an oxidation feed comprised of at least one of 5-hydroxymethylfurfural and/or a derivative or derivatives of 5-hydroxymethylfurfural in the solvent, together with at least one bromine containing species; b) contacting the oxidation feed from step (a) with a metal catalyst and with an oxygen source under oxidation conditions to produce an oxidation product mixture comprising 2,5-furandicarboxylic acid (FDCA) and/or a derivative thereof, the solvent, and a residual catalyst; c) purifying and separating the mixture obtained in step (b) to obtain FDCA and/or a derivative thereof and the solvent; and d) recycling at least a portion of the solvent obtained in step (c) to step (a).