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:
Sep. 17, 2024
Filed:
Sep. 29, 2023
James G. Blencoe, Fernandina Beach, FL (US);
Arend Groen, Kingston, TN (US);
James G. Blencoe, Fernandina Beach, FL (US);
Arend Groen, Kingston, TN (US);
Abstract
An improved beta(β)-spodumene (˜LiAlSiO) nitric acid conversion process produces discrete lithium (Li), aluminum (Al) and silica (SiO) materials by: (i) converting lithium nitrate, LiNO, to lithium carbonate, LiCO; (ii) creating a Al-rich precipitate either by thermally decomposing aluminum nitrate, Al(NO), or by reacting Al(NO)with aqueous and/or solid ammonium carbonate, (NH)CO; and (iii) forming a solid SiO-rich aluminosilicate residue by selectively leaching Li and Al from β-spodumene. Three key reactants consumed during processing—nitric acid (HNO), ammonia (NH), and magnesium oxide (MgO)—may be regenerated internally by closed-loop chemical cycles, this feature of the process greatly improving its economics in commercial applications.