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. 01, 2022
Filed:
Jul. 29, 2020
Georgia Tech Research Corporation, Atlanta, GA (US);
Fereshteh Rashidi, Atlanta, GA (US);
Sankar Nair, Atlanta, GA (US);
Nikita Kevlich, Atlanta, GA (US);
Meisha Shofner, Atlanta, GA (US);
Scott Sinquefield, Atlanta, GA (US);
Zhongzhen Wang, Atlanta, GA (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
The disclosed technology includes a membrane-based device configured to concentrate black liquor, which results from papermaking. Certain embodiments may comprise a nanofiltration membrane configured to remove lignin from black liquor, and the nanofiltration membrane may include a first macroporous polymer substrate and a first graphene oxide membrane covering the first macroporous polymer substrate. Some embodiments may comprise a reverse osmosis membrane, which may include a second macroporous polymer substrate and a second graphene oxide membrane covering the second macroporous polymer substrate.