Renascor confirms cost parity for hydrofluoric acid-free process to produce high-purity graphite
ASX-listed graphite developer Renascor Resources confirms in a cost study the viable economic potential to use its hydrofluoric acid-free method for purifying graphite for use in lithium-ion battery anodes.
The company undertook detailed engineering and testwork at its purified spherical graphite (PSG) demonstration plant, in South Australia, with the purification cost study estimating operating costs of about $459/t, which makes it competitive among hydrofluoric acid-based purification methods being developed in Western jurisdictions.
Renascor's hydrofluoric acid-free purification process is designed to provide a competitive ex-China alternative to conventional hydrofluoric acid-based methods through lower reagent costs, reagent recycling enabled by integrated water treatment, and by eliminating the need for higher health, safety and environmental management costs associated with the use of hydrofluoric acid.
Renascor is currently commissioning its Australian government co-funded PSG demonstration plant to validate engineering, operating and process parameters ahead of commercial-scale downstream development.
Concurrently, the company is working with prospective customers and strategic partners through the demonstration plant by generating and sharing operating data, as well as product samples, to support customer qualification, offtake and strategic investment discussions.
“As global battery supply chains increasingly seek competitive ex-China sources of battery materials, Renascor’s strategy is to combine the scale and quality of the Siviour graphite deposit with downstream PSG processing in South Australia to establish an integrated Australian mine-to-PSG operation. This will provide anode manufacturers with a secure and commercially competitive source of spherical graphite produced using a hydrofluoric acid-free purification process," Renascor concludes.
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