Application of Ionic Liquids in Hydrometallurgy
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".
Deadline for manuscript submissions: closed (12 November 2021) | Viewed by 11466
Special Issue Editors
Interests: liquid–liquid extractions of metal ions; separation technologies; ionic liquids; deep eutectics solvents
Special Issues, Collections and Topics in MDPI journals
Interests: membrane separations; ionic liquids; deep eutectic solvents
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Ionic liquids (ILs) are novel and outstanding solvents that have been proposed for many applications due to their excellent properties, such as negligible vapor pressure, non-flammability, high solvating power, a wide electrochemical window, and tunable properties. Thus, we can find ILs in applications like extractive distillation, the separation and purification of pharmaceuticals, biomass dissolution, reaction media, and catalysis. However, hydrometallurgy could end up being one of the most explored processes because ILs could provide high performance, sustainability, and safety to a mining industry that has various and serious environmental impacts. This may become of even greater importance due to the fact that there is an increasing interest in using hydrometallurgy for the selective recovery of valuable metal ions from electronic wastes or refractory minerals, avoiding, in the latter case, mining tails. Therefore, there is a window of opportunity for ILs in hydrometallurgy. Examples include the use ILs in preferential leaching; the selective solvent extraction of metal ions from pregnant leach liquors; and studies on how the viscosity of these solvents affects the performance of electrowinning despite the large electrochemical window. Thus, these solvents could be used in the entire hydrometallurgical metal recovery process in order to promote a more sustainable mining industry.
Prof. Dr. Esteban Quijada-Maldonado
Prof. Dr. Julio Romero
Guest Editors
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Keywords
- urban mining
- leaching of refractory minerals
- preferential leaching
- leaching kinetics
- selective solvent extraction
- ionic liquids as diluents
- ionic liquids as extractants
- synergistic extraction
- extraction stoichiometry
- ionic liquids as electrolytes
- effect of viscosity on electrodeposition.
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