Alguacil, F.J.; Robla, J.I. Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents. Minerals2023, 13, 1288.
Alguacil, F.J.; Robla, J.I. Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents. Minerals 2023, 13, 1288.
Alguacil, F.J.; Robla, J.I. Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents. Minerals2023, 13, 1288.
Alguacil, F.J.; Robla, J.I. Recent Work on the Recovery of Rare Earths Using Ionic Liquids and Deep Eutectic Solvents. Minerals 2023, 13, 1288.
Abstract
With the developments of smart technologies, the use of rare earth elements (REEs) knows a widespread use, thus, their importance as valuable and strategic metals boosted to levels never known before. Due to their scarcity in Earth crust, the recovery of these elements from secondary resources also knows further developments. Traditional pyrometallurgical and hydrometallurgical processing, though of wide use, in the recovery of these REEs, have some environmental drawbacks, thus, the development of new recovery approaches are under developments. Here, Solvometallurgy appeared as a friendly environmental technology, and ionic liquids and deep eutectic solvents re-sulted as a first-row chemicals to be used in the different unit operations used in solvometallurgical processing: leaching, liquid-liquid extraction, ion exchange (adsorption), precipitation and elec-trolysis. This manuscript reviewed the most recent literature concerning the use of ionic liquids and deep eutectic solvents in the recovery of REEs from various sources.
Keywords
rare earths elements; ionic liquids; deep eutectic solvents; solvometallurgy; recovery
Subject
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright:
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