Sustainable hydrophobic terpene-based eutectic solvents for the extraction and separation of metals†
Nicolas
Schaeffer, 
a
Mónia A. R.
Martins,
abc
Catarina M. S. S.
Neves,
a
Simão P.
Pinho
bc
and
João A. P.
Coutinho
*a
a
Mónia A. R.
Martins,
abc
Catarina M. S. S.
Neves,
a
Simão P.
Pinho
bc
and
João A. P.
Coutinho
*a
Abstract
Sustainable hydrophobic eutectic solvents, composed of low-priced and biodegradable terpenes and fatty acids, were used for the extraction and separation of Cu(II) from other transition metals in mildly acidic solutions. Multiple parameters were evaluated for metal extraction and the hydrophobic eutectic solvent was successfully recovered and reused.
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