Recovery of niobium and tantalum by solvent extraction from Sn–Ta–Nb mining tailings
Olga Rodríguez, Francisco José Alguacil, E. Escudero, Irene García-Díaz, Paloma Fernández, Belén Sotillo, Félix A. López
Abstract
of 98.5% purity and tantalum salt, after calcination and purification, of 97.3% purity. The process described in this work opens a possibility to produce high quality materials that are considered critical by the EU from alternative sources exempt of criticality factors.
Topics & Concepts
TantalumTailingsNiobiumSolvent extractionExtraction (chemistry)MetallurgyMaterials scienceSolventInorganic chemistryChemistryChromatographyOrganic chemistryExtraction and Separation ProcessesAdvancements in Battery MaterialsMetal Extraction and Bioleaching