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:
Apr. 25, 2023
Filed:
Sep. 15, 2020
Incor Lithium, Nicosia, CY;
InCoR Lithium, Nicosia, CY;
Abstract
Processes are provided for the selective recovery of lithium from brines using aqueous redox reactions, involving lithium extraction into a particulate ferric phosphate solid in the form of an iron (III) heterosite, in the presence of a reducing agent capable of reducing ionic lithium, at a controlled lithium extraction pH. Lithium elution involves exposing the loaded lithium ferrous phosphate solids, in the form of lithium iron (II) triphylite, to an oxidizing agent capable of mediating the oxidation of the sequestered atomic lithium. This is carried out at a controlled acidic lithium elution pH. Conditions in the lithium extraction and elution steps are provided so that a concentrated liquid lithium eluate is provided to subsequent steps of impurity removal and lithium carbonate precipitation.