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:
Jul. 25, 2017
Filed:
Nov. 06, 2012
Applicant:
Annikki Gmbh, Graz, AT;
Inventors:
Anton Friedl, Vienna, AT;
Abdel Halim Fuqaha, Tulln, AT;
Felix Weinwurm, Vienna, AT;
Thomas Ters, Vienna, AT;
Assignee:
ANNIKKI GMBH, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); B01D 61/02 (2006.01); B01D 61/58 (2006.01); C08H 7/00 (2011.01); C08H 8/00 (2010.01); C08L 97/00 (2006.01); B01D 61/14 (2006.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); B01D 61/027 (2013.01); B01D 61/58 (2013.01); C08H 6/00 (2013.01); C08H 8/00 (2013.01); C08L 97/005 (2013.01); B01D 61/145 (2013.01); B01D 2317/022 (2013.01); Y02P 20/582 (2015.11);
Abstract
A method for working up an aqueous, alkaline-alcoholic and lignin containing solution via nanofiltration, wherein a permeate and a retentate are obtained, which permeate is an aqueous, lignin-starved solution and which retentate is an aqueous lignin-enriched solution.