Abstract
Non-dispersive extraction of Zn(II) and Cu(II) from single and binary solutions across a flat-sheet membrane to an organic solution containing di(2-ethylhexyl)phosphoric acid (D2EHPA) was studied. Hydrophilic microporous and cation exchange membranes were used. Experiments were performed as a function of the pH (2–6), metal concentration (0.31–3.13 mol/m3), and D2EHPA concentration (50–500 mol/m3). It was shown that the presence of one metal retarded the transport of the other. Compared to the hydrophilic microporous membrane, the cation exchange membrane gave a low extraction rate of both metals in either single or binary systems, but gave a higher selectivity of Zn(II) over Cu(II) in binary systems at high D2EHPA concentrations.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call