|About this Abstract
||Part C-3: Processing of Critical Metals
||Extraction of Scandium (Sc) using a Task-Specific Ionic Liquid Protonated Betaine bis(trifluoromethylsulfonyl)imide [Hbet][TF2N].
||Godfrey Mawire, Lizelle Doreen van Dyk
|On-Site Speaker (Planned)
The extraction of scandium from its oxide with a task specific ionic liquid [Hbet][TF2N] offers potential advantages like lower energy consumption, recycling of the extractant and reduced environmental impact compared to conventional methods. In this paper, the influence of reaction temperature, solid to liquid ratio and water to ionic liquid ratio on the extraction of scandium from a synthetic scandium oxide (Sc2O3) system was studied. The influence of investigated parameters on leaching was very significant as approximately 98% scandium was extracted from its oxide after 72 hours. Furthermore, the ionic liquid also selectively extracted 47% scandium after 48 hours from a mixture of pure metal oxides containing oxides of tantalum, niobium, and scandium. The research demonstrated the potential of [Hbet][TF2N] to selectively extract scandium from columbite processing tailings and other scandium bearing ores like Ixiolite and tantalite which predominately contain tantalum and niobium.
||Planned: At-meeting proceedings