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:
Mar. 19, 2013
Filed:
Apr. 12, 2012
James A. Dumesic, Verona, WI (US);
David Martin Alonso, Madison, WI (US);
Elif I. Gürbüz, Madison, WI (US);
Stephanie G. Wettstein, Madison, WI (US);
James A. Dumesic, Verona, WI (US);
David Martin Alonso, Madison, WI (US);
Elif I. Gürbüz, Madison, WI (US);
Stephanie G. Wettstein, Madison, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
A method to make levulinic acid (LA), furfural, or gamma-valerolactone (GVL). React cellulose (and/or other Ccarbohydrates) or xylose (and/or other Ccarbohydrates) or combinations thereof in a monophasic reaction medium comprising GVL and an acid; or (ii) a biphasic reaction system comprising an organic layer comprising GVL, and a substantially immiscible aqueous layer. At least a portion of the cellulose (and/or other Ccarbohydrates), if present, is converted to LA and at least a portion of the xylose (and/or other Ccarbohydrates), if present, is converted into furfural.