Frontier Lithium Successfully Produces Lithium Hydroxide from the PAK Lithium Project
Sudbury, Ontario, October 21, 2020 – Frontier Lithium Inc. (TSX.V: FL) (the “Company” or “Frontier”) is pleased to announce it has produced lithium hydroxide monohydrate (“LiOH.H2O”) as a result of bench-scale testwork that successfully employed a proprietary extraction process. The company along with XPS Expert Process Solutions (“XPS”), a Glencore company and AG Hydrometallurgy Services produced high quality lithium bearing pregnant leach solutions (“PLS”) suitable for battery grade lithium hydroxide production for the growing Lithium Ion battery market. The flowsheet has the advantage of directly producing battery-quality lithium hydroxide from spodumene without employing a lithium carbonate intermediate, thereby reducing both cost and the generation of waste products.
The bench-scale testwork utilized lithium concentrates produced by single stage dense media separation (DMS), and flotation from representative samples sourced from the Company’s PAK Lithium deposit. Pyrometallurgy and the proprietary hydrometallurgical steps have successfully resulted in the production of small quantities of high-quality pregnant solution. The Company has performed preliminary crystallization testwork that has resulted in 56.5% LiOH values on par with industry specifications. The Company is currently constructing a pilot plant to demonstrate continuous processing. The pilot testwork will produce larger quantities of PLS suitable for continuous crystallization with the objective of producing final high purity battery grade lithium hydroxide monohydrate from a steady state process.
The program results demonstrate the ability of Frontier to potentially produce lithium hydroxide within a ‘ore-to-hydroxide’ conversion route. The testwork will support the PEA study currently being conducted to access the viability of a vertically integrated chemical company through operation of a spodumene mine at the PAK Lithium Project to commercialization of high-purity lithium chemicals.
“Recent Provincial and Federal announcements have begun to lay the foundation for a regional, vertically integrated Battery Ecosystem supported by northern natural resources and Ontario’s 96% zero-carbon sources of energy,” stated Trevor Walker, President and CEO of Frontier Lithium. “Frontier is well positioned in the Great Lakes region as it develops Ontario’s largest lithium bearing spodumene resource with multiple deposits which will be required to support North American lithium ion battery production capacity.”
- Frontier Lithium and its technology partners (“the Company”) have jointly completed Bench Scale / Laboratory Testwork designed to develop a hydrometallurgical process essential for direct production of lithium hydroxide from pregnant leach solutions generated from hard rock spodumene sources;
- The Company has successfully developed a lithium extraction process and has produced high quality lithium-bearing pregnant leach solutions (“PLS”) at the bench-scale that is suitable for the production of lithium hydroxide;
- Bench scale results demonstrate the validity of the proprietary process flowsheet and are currently being used to secure intellectual property protection under an International Patent Cooperation Treaty (PCT) filing.
All scientific and technical information in this release has been reviewed and approved by Garth Drever, P.Geo., the qualified person (QP) under the definitions established by National Instrument 43-101.