期刊
RARE METAL TECHNOLOGY 2021
卷 -, 期 -, 页码 217-228出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-030-65489-4_22
关键词
Red mud; Bauxite residue; Scandium; Recovery of scandium; Solvent impregnated resin; SIR; Composite-enhanced extractant polymer resin
资金
- European Community [730105]
This study presents the results of scandium extraction from Greek Bauxite Residue using sulfuric acid as the leaching agent and a composite extractant-enhanced ion-exchange resin. The optimal extraction conditions for scandium were determined at the lab scale, and pilot plants were established and operated to demonstrate the process.
This work presents the results of scandium extraction from Greek Bauxite Residue (BR) using sulfuric acid as the leaching agent and a composite extractant-enhanced ion-exchange resin for a new novel, selective-ion recovery (SIR) process developed by II-VI. The BR produced in Mytilineos's plant contains approximately 75-130 mg/kg of Sc and given the plant's current production capacity, more than 100 t of Sc are discarded each year within the BR stream. The optimum conditions for selective Sc extraction from BR were determined at lab scale in conjunction with the efficiency in Sc uptake by the resin. Under the SCALE research project, a BR leaching pilot plant (Mytilineos) and Sc extraction pilot plant (II-VI) have been established and operated in Mytilineos's plant to demonstrate this process.
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