"Additionally, conventional acid leach, microwave assisted acid digestion, HF acid “free” acid digestion and thermal purification were covered under the spherical graphite purification testwork. Dorfner ANZAPLAN tested all four different purification methods, highlighting that the spherical graphite was able to be purified to the minimum + 99.95 wt.-% fixed carbon, which is required for battery applications."
Taken from announcement Feb 2020.
BEM Chart, page-46
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