abstract
A biphasic system composed of two deep eutectic solvents (DES) sharing a common hydrogen-bond donor exhibits a tuneable phase behavior and efficient metal partitioning, yielding an improved separation selectivity of trivalent from divalent metal ions compared to the equivalent aqueous system.
keywords
SOLVENT-EXTRACTION; IONIC LIQUIDS; SPECIATION; COMPLEXES
subject category
Chemistry
authors
Nogueira, A; Vallejos-Michea, C; Fateixa, S; Jimenez, YP; Coutinho, JAP; Schaeffer, N
our authors
Projects
Hydrophobic Eutectic Solvents for Tailored Metal Separation and Recycling (DESignSX)
Collaboratory for Emerging Technologies, CoLab (EMERGING TECHNOLOGIES)
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
acknowledgements
This work was co-funded by the European Union ERC-StG,DESignSX, (project 101116461). This work was partly developed with in the scope of the project CICECO - Aveiro Institute of Materials, UIDB/50011/2020 (DOI:https://doi.org/10.54499/UIDB/50011/2020), UIDP/50011/2020 (DOI:https://doi.org/10.54499/UIDP/50011/2020) & LA/P/0006/2020 (DOI:https://doi.org/10.54499/LA/P/0006/2020), financed by national funds through the FCT/MCTES (PIDDAC). A. N. and S. F. acknowledge FCT, I.P., for the PhD grant 2023.01418.BD and research contract REF-069-88-ARH-2018 funded by national funds (OE) inthe scope of the framework contract foreseen in the numbers 4,5, and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19, respectively. Y. P. J. and C. V. M. thank the Universidad de Antofagasta, the doctoral program in mineral process engineering, and ANID-Chile (No. 21221050) for funding this research through the FONDECYT (No. 1221428) project.