Extraction/transportation of Co2+ metal ions with bis(2-ethylhexyl) phosphate dissolved in kerosene using a multidropped liquid membrane technique

Authors

VOLKAN DEMİRELFollow
RAMAZAN DONATFollow

DOI

10.55730/1300-0527.3619

Abstract

The transport properties of Co2+ ions from the aqueous donor phase to aqueous acceptor phase with the recently developed multidroplet liquid membrane (MDLM) extraction system were studied. This system serves as a continuous process for the transportation of ions and requires fewer reagents for starting and conducting the procedure. Moreover, the procedure results in fewer waste chemicals and mixtures in comparison to traditional extraction methods. During extraction, bis(2-ethylhexyl) phosphate (D2EHPA) was used as a carrier material and 5% potassium thiocyanate (KSCN) solution was used to obtain a colored complex for UV-Vis detection. By means of several experiments, the optimum D2EHPA concentration, pH range for both donor and acceptor phases, and temperature range effect on transport kinetics were investigated. In the extraction of cobalt ions with the MDLM system, the activation energy was calculated as Ea = 13.80 kcal mol–1, and it was found that the extraction was chemically controlled since it was greater than 10 kcal mol–1.

Keywords

Cobalt, D2EHPA, transport, membrane, multidroplet liquid membrane system

First Page

1355

Last Page

1369

Recommended Citation

DEMİREL, VOLKAN and DONAT, RAMAZAN (2023) "Extraction/transportation of Co2+ metal ions with bis(2-ethylhexyl) phosphate dissolved in kerosene using a multidropped liquid membrane technique," Turkish Journal of Chemistry: Vol. 47: No. 6, Article 6. https://doi.org/10.55730/1300-0527.3619
Available at: https://journals.tubitak.gov.tr/chem/vol47/iss6/6