Lepidico says it has produced battery-grade lithium carbonate grading 99.8 per cent from a tailings stream using its L-Max process technology.
A standard suite of L-Max by-products was also generated as part of the testwork program, which used tailings from the Mt Cattlin spodumene operations, the company said.
Optimisation testwork specific to Mt Cattlin is being evaluated to maximise lithium and by-product extractions, while minimising acid and power consumption.
“This testwork program demonstrates conventional flotation coupled with Lepidico’s proprietary L-Max process technology can be used to produce battery-grade lithium carbonate from modest lithium grade tailings sourced from primary spodumene
operations,” Lepidico managing director Joe Walsh said.
“Furthermore, this work implies that L-Max can materially enhance the mineral resource potential and thereby value of mixed lithium mineral hard-rock deposits that contain lithium-micas.”