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.

Date of Patent:
Aug. 11, 2026

Filed:

Jul. 24, 2020
Applicant:

Ohio State Innovation Foundation, Columbus, OH (US);

Inventors:

Chin-Min Cheng, Columbus, OH (US);

Tarunjit Butalia, Dublin, OH (US);

Jeffrey Bielicki, Columbus, OH (US);

John Lenhart, Columbus, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/20 (2006.01); C01F 17/10 (2020.01); C01F 17/206 (2020.01); C22B 59/00 (2006.01);
U.S. Cl.
CPC ...
C01F 17/10 (2020.01); C01F 17/206 (2020.01); C22B 3/20 (2013.01); C22B 59/00 (2013.01);
Abstract

Provided herein are methods recovering rare earth elements (REEs) from a solution containing one or more REEs. These methods can comprise contacting an aqueous solution comprising one or more rare earth elements (REEs) with a solid sequestration media (e.g., a stabilized flue gas desulfurization (sFGD) material, or a sludge by-product from a water treatment process) to provide a REE-containing solid feedstock; and contacting the solid feedstock with an extraction solution to generate a rare earth element (REE) solution.


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