Canadian Manufacturing

Frontier Lithium finds PFS-level metallurgical results

Locked cycle flotation produced a lithium concentrate with grade of 6.15 per cent lithium oxide with a corresponding Li recovery of 78.1  per cent.

January 12, 2022   by CM Staff

SUDBURY — Frontier Lithium Inc. has reported metallurgical results from the company’s  Lithium Project in the Red Lake Mining District, Northwestern Ontario.

The company stated that it performed locked cycle test flotation work ahead of conducting a pilot plant campaign that will commence in the coming weeks with a representative 7 tonne bulk sample from the Spark deposit. The test work was undertaken by a third-party lab, based in Ontario the company also stated.

According to Frontier Lithium, the program returned favourable results, confirming the suitability of the flowsheet design.

Locked cycle flotation produced a lithium concentrate with grade of 6.15 per cent lithium oxide with a corresponding Li recovery of 78.1  per cent. The test involved six cycles and was very stable indicating good metallurgy.

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The sample included approximate zonation variability of the resource with dilution at the average Spark resource grade of 1.59 per cent lithium oxide and final iron oxide levels of 0.44 per cent Fe2O3. These results confirm the suitability of the material to meet the most rigorous specifications of the lithium market, according to the company.

The company stated that the metallurgical results from the PAK and Spark deposits give them confidence in continuing their work on the pilot plant that will process a combined sample of PAK and Spark ore. Additionally, they expect to produce 1,000 kg of concentrate to be used for the development of the downstream lithium hydroxide conversion process.

“Frontier is currently conducting a Pre-Feasibility Study, and the positive LCT results are another important step in de-risking the Project. These results meet and exceed chemical grade requirements for further upgrading to produce compounds for the lithium-ion battery market – a global market that is anxious to source sustainable, low-iron, high purity lithium materials from a favourable jurisdiction,” said Dr. Naizhen Cao, Vice President, Technology of Frontier Lithium in a statement.

Frontier Lithium has also stated that Mr. Garth Drever, P.Geo., is the “qualified person” for Frontier defined under NI 43-101 and has reviewed and approved the technical information contained in the company’s statements.