Abstract
Importance of removal of radioactive elements from wastewater was the motivation behind this work. Synergistic solvent extraction of U(VI) and Th(IV) ions from perchlorate solution using didodecylphosphoric acid (HDDPA) incorporated with tri-n-butyl phosphate (TBP) or tri-n-octylphosphine oxide (TOPO) as a synergists have been studied for the first time. The effects of HDDPA concentration, synergist’s concentration, pH values and temperature on the extraction process have been studied. The thermodynamic parameters of the extraction process for these ions were calculated. It was found that the synergistic contribution of TOPO is higher than TBP in the extraction of Th(IV) and U(VI).
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The authors thank the chemistry department at The University of Jordan (JU) for the financial support, utilizing their laboratories and providing all the required chemicals to complete this research.
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Nazal, M.K., Albayyari, M.A., Khalili, F.I. et al. Synergistic effect of tri-n-butyl phosphate (TBP) or tri-n-octyl phosphine oxide (TOPO) with didodecylphosphoric acid (HDDPA) on extraction of uranium(VI) and thorium(IV) ions. J Radioanal Nucl Chem 312, 133–139 (2017). https://doi.org/10.1007/s10967-017-5204-3
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DOI: https://doi.org/10.1007/s10967-017-5204-3