Study on extraction of Rh(III) by DABCO-based ionic liquid from hydrochloric acid medium

Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane

“…These results concluded that in the 5-100 g/L gold concentrations range the variation in the percentage of gold extraction in the organic phase was almost negligible (96-98%), whereas at higher initial gold concentrations in the aqueous solutions these percentages decreased from 93% at 100 g/L gold to 87% at 200 g/L gold. This decrease in the percentage of gold extraction with the increase of the initial metal concentration was not rare [25][26][27][28], and it can be due to polymerization of the metal in the aqueous phase and also to the common ion effect, in which the organic phase was dominated by the metal anion (AuCl4 -in this work) and the aqueous phase by the halide ions (Clin this case) [29].…”

Solvent Extraction of Gold(III) by 2-Ethylhexanol and Modeling of Facilitated Transport across a Supported Liquid Membrane

“…These results concluded that, in the 5-100 g/L gold concentration range, the variation in the percentage of gold extraction during the organic phase was almost negligible (96-98%), whereas, at higher initial gold concentrations, in the aqueous solutions, these percentages decreased from 93% at a 100 g/L gold concentration to 87% at a 200 g/L gold concentration. This decrease in the percentage of gold extraction with the increase in the initial metal concentration is not rare [25][26][27][28] and can be due to the polymerization of the metal in the aqueous phase and also to the common ion effect, according to which the organic phase is dominated by the metal anion (AuCl 4 − in this work) and the aqueous phase by the halide ions (Cl − in this case) [29].…”