Altura Mining Reports the Results of Recent Conversion Process Testing

Altura Mining Limited (ASX Code: AJM) reported the excellent results of its recent conversion process testing in which its 25kg sample of Pilgangoora spodumene achieved a conversion to 99.97% purity Lithium Carbonate. This is above the target 99.5% lithium carbonate purity and exceeds the FMC battery grade specification. It is comparable with even more stringent EV grade lithium carbonate.

The ability to produce lithium carbonate using an unoptimized process flowsheet, which is comparable with a commercial EV grade lithium carbonate, demonstrates the high-quality grade of Altura’s Pilgangoora spodumene and the low levels of deleterious elements contained in our ore after concentration. The work was able to demonstrate the advantage Pilgangoora spodumene product holds in producing high purity lithium carbonate.

The Company conducted the independent testing through ANSTO Minerals (a division of the Australian Nuclear Science & Technology Operations) ahead of first sales of spodumene concentrate in Q2 2018. ANSTO processed the ore into Lithium Carbonate via a conventional spodumene processing flowsheet, with this process being comparable to what Altura’s customers will use once the purpose-built conversion plant currently being constructed in China is operational.

ANSTO Minerals employed a conventional spodumene processing flowsheet for the bulk lithium carbonate preparation, and more importantly, no optimisation of the processing parameters was undertaken and thus the success of the program could be further improved with further optimisation opportunities.


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