Invention Grant
- Patent Title: Black liquor concentration by a membrane comprising graphene oxide on porous polymer
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Application No.: US16941963Application Date: 2020-07-29
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Publication No.: US11484838B2Publication Date: 2022-11-01
- Inventor: Fereshteh Rashidi , Sankar Nair , Nikita Kevlich , Meisha Shofner , Scott Sinquefield , Zhongzhen Wang
- Applicant: Georgia Tech Research Corporation
- Applicant Address: US GA Atlanta
- Assignee: Georgia Tech Research Corporation
- Current Assignee: Georgia Tech Research Corporation
- Current Assignee Address: US GA Atlanta
- Agency: Troutman Pepper Hamilton Sanders LLP
- Agent Ryan A. Schneider
- Main IPC: B01D61/02
- IPC: B01D61/02 ; B01D71/02 ; B01D63/06 ; D21C11/00 ; B01D63/10 ; B01D69/02 ; B01D71/68 ; B01D69/10
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.
Public/Granted literature
- US20200368688A1 Black Liquor Concentration by a Membrane Comprising Graphene Oxide on Porous Polymer Public/Granted day:2020-11-26
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