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:
Feb. 09, 2021
Filed:
Sep. 30, 2015
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Isto Heiskanen, Imatra, FI;
Kaj Backfolk, Lappeenranta, FI;
Valentas Gaidelis, Vilnius, LT;
Jonas Sidaravicius, Vilnius, LT;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); D21C 11/00 (2006.01); C08H 7/00 (2011.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); C08H 6/00 (2013.01); D21C 11/00 (2013.01); D21C 11/0007 (2013.01);
Abstract
The present invention relates to a process for purifying, such as salt/ion depletion, and/or ash reduction, and/or sulphur removal, and/or free sugar depletion, and/or VOC depletion or fractionating, preferably by using dewatering, of a slurry comprising a lignin or lignin derivative or a combination thereof. A lignin or lignin derivative obtainable from said process and uses thereof are also disclosed.