MTM Critical Metals reported initial results from flash joule heating tests on spodumene concentrate, showing up to 92% reduction in calcination time compared to conventional methods.

The goal is to enhance lithium extraction efficiency from spodumene, addressing current high energy demands.

MTM Chairman John Hannaford highlighted the flash joule heating's potential to revolutionise lithium refining by potentially eliminating the calcination step crucial for spodumene leaching.

Ongoing tests will optimise the process and assess downstream leaching properties, including recovery from spodumene waste tailings.