|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Weathering of Historic Lithium Mine Tailings and Potential Recovery of Economically Valuable Minerals from The Former Québec Lithium Mine Site (Québec, Canada)
||Tomy Roy, Benoît Plante, Mostafa Benzaazoua, Isabelle Demers, Lucie Coudert, Sophie Turcotte
|On-Site Speaker (Planned)
Despite the fact spodumene has been mined for lithium for more than a century, literature about the weathering of hard-rock lithium mine tailings remains scarce. This paper aims to provide a better understanding of the weathering of spodumene-pegmatite tailings with preliminary field data gathered from an abandoned lithium tailings storage facility (TSF). From 1955 to 1965, the Québec Lithium mine in Abitibi-Témiscamingue (Québec, Canada) generated about 700,000 tons of tailings from mining and refining of a spodumene-pegmatite ore. In order to reach this objective, a coring campaign was done in 2020 at this TSF. Vertical profiles of the mineralogical and chemical compositions will provide insights on the tailings' weathering. In addition, it will allow to assess the potential presence of residual minerals of economic value and their amenability to reprocessing.