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:
Jun. 24, 2025
Filed:
Dec. 12, 2019
Xps Expert Process Solutions—glencore Canada Corporation, Falconbridge, CA;
Ag Hydrometallurgy Services Inc., Kingston, CA;
Frontier Lithium Inc., Val Caron, CA;
XPS EXPERT PROCESS SOLUTIONS—GLENCORE CANADA CORPORATION, Falconbridge, CA;
AG HYDROMETALLURGY SERVICES INC., Kingston, CA;
FRONTIER LITHIUM INC., Val Caron, CA;
Abstract
Processes for the recovery or purification of lithium species from various sources are described. Such sources include natural sources or deposits, such as in mining applications, and synthetic or non-natural sources, such as in the recycling of lithium species from batteries. In embodiments, the process comprises treating a LiSO-comprising aqueous solution with one or more barium salts to form a precipitate comprising barium sulfate (BaSO). In embodiments, the processes may further comprise the preparation of a lithium sulfate-containing solution via treatment of the starting material or mixture with sulfuric acid. In embodiments, further treatments may be performed, for example prior to and/or subsequent to treatment with one or more barium salts, for example for initial or further sulfate removal, and/or removal of other metal species that may be present. The recovered lithium species be used directly, or converted into other forms, for use in a variety of applications.