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. 14, 2020
Filed:
Feb. 01, 2016
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Jari Kavakka, Stockholm, SE;
Mari Granström, Kerava, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C13K 13/00 (2006.01); B01D 11/04 (2006.01); B01D 9/00 (2006.01);
U.S. Cl.
CPC ...
C13K 13/002 (2013.01); B01D 9/004 (2013.01); B01D 9/0018 (2013.01); B01D 11/04 (2013.01);
Abstract
A method of generating a refined sugar stream that comprises xylose from a biomass hydrolysis solution including contacting a biomass hydrolysis solution that includes a population of mixed sugars comprising xylose, an acid, and impurities, with an extraction solvent to form an extraction mixture; and separating from said extraction mixture a first stream that includes the acid and a second, refined sugar stream that includes the extraction solvent and xylose. The extraction solvent is a tri-alkyl phosphine oxide, a dialkylsulfoxide, or a dialkylphosphite, or any combination thereof.