PROCESSING

Lithium extraction process in the works

Process for extracting lithium from spodumene concentrate under works

Staff reporter
Lithium extraction process in the works

PRESS RELEASE: Light Metals International (LMI) has developed a thermochemical technology to rapidly manufacture lithium carbonate (Li2CO3) and/or lithium hydroxide (LiOH) from a variety of spodumene (LiAlSi2O6-rich) concentrates. The method is modular and highly scalable, thereby enabling a small ‘factory footprint’, and holds the potential to significantly decrease overall hard-rock lithium production costs. 

Unique features of the technology include:

  • Only three feedstock materials are required: a spodumene concentrate, to produce high-purity Li2CO3 and/or high-purity LiOH; high-purity CO2, which is consumed in forming Li2CO3; and high-purity H2O, which is consumed in forming LiOH.
  • Creates three potentially saleable high-purity products: Li2CO3 and/or LiOH, aluminum hydroxide, Al(OH)3, and amorphous silica, SiO2.
  • Eliminates use of conventional sulfuric acid leaching.
  • Modular capabilities allow for scalable and remote deployment.

Orion and LMI are led by James G. Blencoe, who has more than 40 years of experience designing, constructing, operating and maintaining specialised equipment for advanced chemical production.

MGX and joint-venture partner Power Metals have agreed to provide Dr Blencoe with a 10kg sample of spodumene-rich rock originating from the Case Lake lithium project in Ontario, Canada, which will be used to perform initial bench-scale laboratory testing.

“The success of our Case Lake, Ontario, joint venture has led us to review new metallurgical methods that have the potential to significantly reduce the costs and equipment required for extraction of the principle spodumene elements lithium, aluminium and silicon (the latter in the form of silica),” said MGX president and CEO Jared Lazerson. “We believe Dr. Blencoe has a firm understanding of the thermochemical requirements to achieve such a goal.”

A growing series of reports, each focused on a key discussion point for the mining sector, brought to you by the Mining Magazine Intelligence team.

A growing series of reports, each focused on a key discussion point for the mining sector, brought to you by the Mining Magazine Intelligence team.

editions

ESG Mining Company Index: Benchmarking the Future of Sustainable Mining

The ESG Mining Company Index report provides an in-depth evaluation of ESG performance of 61 of the world's largest mining companies. Using a robust framework, it assesses each company across 9 meticulously weighted indicators within 6 essential pillars.

editions

Mining Magazine Intelligence Exploration Report 2024 (feat. Opaxe data)

A comprehensive review of exploration trends and technologies, highlighting the best intercepts and discoveries and the latest initial resource estimates.

editions

Mining Magazine Intelligence Future Fleets Report 2024

The report paints a picture of the equipment landscape and includes detailed profiles of mines that are employing these fleets

editions

Mining Magazine Intelligence Digitalisation Report 2023

An in-depth review of operations that use digitalisation technology to drive improvements across all areas of mining production