MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617094332 A) filed by Metso Finland Oy on August 04, 2026, for A Novel Atmospheric Leaching Process Of Uncalcined Lithium Concentrates.
Inventors include Zhang, Tian; and Kolehmainen, Eero.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: According to the present invention, there is provided a method for processing a concentrate containing lithium in uncalcined form by leaching at atmospheric pressure. Typically, the leaching takes place at a temperature below the boiling point of the leach solution, and is a mild leaching process that can be carried out without using an autoclave.
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