United Lithium (CSE: ULTH) this morning posted further results from testwork being conducted to produce lithium carbonate, also known as Li2CO3. The technical grade of the lithium carbonate, as well as the recovery of Li2O is said to be excellent. The results follow the successful testing of proprietary floatation tech.
The lithium carbonate under the test process was produced from spodumene concentrate, with the testing producing a final product with a purity of 99.1%. Lithium rich pegmatite was sourced for the program from Canada, with spodumene specifically selected due to it being classified as the “most important commercial lithium mineral due to its high Li content and favourable processing characteristics.” The processes of calcination, acid roasting, and water leaching were used to produce the lithium carbonate from the spodumene.
Following the successful tests, the company is now proceeding to test for the product of lithium hydroxide from the spodumene concentrate. Pilot plant testing meanwhile will begin in early 2022, which will test lithium rich feed materials. The results of such testing will then be utilized for an economic assessment for the viability of producing lithium from both spodumene and petalite feed.
“Test work to date has demonstrated that it is possible to modify traditional processes and shortcut lithium carbonate production using innovative out of the box thinking. United Lithium aims to commercialize a sustainable and robust process flow sheet for lithium concentrate production, high grade lithium carbonate and potentially high purity battery grade lithium hydroxide, with the ability to accommodate multiple feed materials with minimal modifications,” said CEO Michael Dehn on the development.
United Lithium last traded at $0.70 on the CSE.
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