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:
Nov. 25, 2025
Filed:
Dec. 18, 2020
Applicant:
Andritz Oy, Helsinki, FI;
Inventors:
Outi Poukka, Metsä, FI;
Katja Salmenkivi, Metsä, FI;
Lauri Pehu-Lehtonen, Helsinki, FI;
Pauliina Sjögård, Helsinki, FI;
Tarja Tamminen, Espoo, FI;
Tiina Liitiä, Espoo, FI;
Taina Ohra-Aho, Espoo, FI;
Assignee:
Andritz Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); B01D 3/14 (2006.01); B01D 3/38 (2006.01); B01D 5/00 (2006.01); D21C 11/00 (2006.01); D21C 11/08 (2006.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); B01D 3/14 (2013.01); B01D 3/38 (2013.01); B01D 5/006 (2013.01); D21C 11/0007 (2013.01); D21C 11/08 (2013.01);
Abstract
According to an example aspect of the present invention, there is provided a method of removing volatile compounds from a lignin-containing material, the method comprising: providing a material comprising lignin and volatile compounds; treating the material by a distillation method in order to vaporize at least a part of the volatile compounds.