
QEM extracts 99.93% pure vanadium pentoxide from industrial waste
Critical minerals explorer and developer QEM (ASX: QEM) has extracted 99.93% pure vanadium pentoxide from Queensland industrial waste. These results complete the study carried out on QEM’s behalf by The University of Queensland Hydrometallurgy Research Laboratories (UQ), part of the School of Chemical Engineering. The results set the groundwork to begin optimisation and pilot-scale work. QEM supplied The University of Queensland with vanadium-bearing spent catalyst from Incitec Pivot’s Mount Isa sulphuric acid plant. Work determined that an acid lead followed by solvent extraction, crystallisation and calcining is a technically viable method of recycling spent catalyst to produce high-purity vanadium pentoxide. Vanadium electrolyte is one of the critical components of vanadium flow batteries for long-duration energy storage, complementing renewable electricity generation.…









