|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Scandium Extraction from Bauxite Residue Using Sulfuric Acid and a Composite Extractant-enhanced Ion-exchange Polymer Resin
||Efthymios Balomenos, Ghazaleh Nazari, Panagiotis Davris, Gomer Abrenica, Anastasia Pilichou, Eleni Mikeli, Dimitrios Panias, Shailesh Patkar , Wen-Qing Xu
|On-Site Speaker (Planned)
This work presents the results of Scandium extraction from Greek Bauxite Residue (BR) using sulfuric acid as the leaching agent and a solvent impregnated resin (SIR- developed by II-VI) as the extraction agent. The BR produced in Mytilineos’s plant contains app. 75-130 ppm of Sc and given the plant current production capacity, more than 100 t of Sc are discarded each year within the BR stream. Τhe optimum conditions for selective Sc extraction from BR were determined in lab scale in conjuction with the efficiency in Sc uptake, of the SIR resin.
Under the SCALE research project, a BR leaching pilot plant (Mytilineos) and Sc extraction pilot plant (II-VI) have been erraected and operated at Mytilineos plant to demonstrate this process.
Acknowledgements The research leading to these results has received funding from the European Community’s H2020 Programme SCALE-730105.