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. 09, 2024
Filed:
Aug. 08, 2019
Ut-battelle, Llc, Oak Ridge, TN (US);
All American Lithium Llc, Brawley, CA (US);
Ramesh R. Bhave, Knoxville, TN (US);
Vishwanath Deshmane, Painted Post, NY (US);
Nicholas N. Linneen, Knoxville, TN (US);
Stephen Harrison, Benicia, CA (US);
Mariappan Paranthaman, Knoxville, TN (US);
Bruce A. Moyer, Oak Ridge, TN (US);
Syed Z. Islam, Oak Ridge, TN (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
TERRALITHIUM LLC, Houston, TX (US);
Abstract
A method of concentrating a lithium-containing aqueous solution, the method comprising: (i) providing a water-permeable structure having an inner surface and outer surface, wherein at least said outer surface is coated with a water-permeable hydrophilic polymer having a thermal stability of at least 100° C.; and (ii) flowing a lithium-containing aqueous feed solution having an initial concentration of lithium over said inner surface while said outer surface is in contact with an aqueous draw solution containing a higher overall ion concentration than said lithium-containing aqueous feed solution, to result in forward osmosis of water from said lithium-containing aqueous feed solution to said aqueous draw solution, and wherein said forward osmosis results in a lithium-containing aqueous product solution having an increased concentration of lithium relative to the initial concentration of lithium in the lithium-containing aqueous feed solution.