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. 08, 2022
Filed:
May. 26, 2016
Applicant:
Upm-kymmene Corporation, Helsinki, FI;
Inventors:
Sami Turunen, Lappeenranta, FI;
Juha Tamper, Levänen, FI;
Assignee:
UPM-KYMMENE CORPORATION, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); B01D 12/00 (2006.01); B01D 33/04 (2006.01); B01D 33/64 (2006.01); C07H 1/08 (2006.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); B01D 12/00 (2013.01); B01D 33/04 (2013.01); B01D 33/64 (2013.01); C07H 1/08 (2013.01);
Abstract
The invention relates to a method and an apparatus for washing a crude lignin slurry () formed from plant based raw material, wherein the method comprises separating a soluble carbohydrate containing fraction () from the crude lignin slurry () by using displacement washing in at least one solid-liquid separation stage () so that the crude lignin slurry is prepressed, washed and pressed, and recovering a solid fraction () and the soluble carbohydrate containing fraction (). Further, the invention relates to the soluble carbohydrate containing fraction and the solid fraction, and their uses.