Mosleh, M., El-Hakim, E., Ahmed, A., Abd El-Ghany, M., El-Didamony, A. (2020). Uranium extraction from different acidic media using a novel solvent-impregnated resin. Bulletin of Faculty of Science, Zagazig University, (), -. doi: 10.21608/bfszu.2020.40456.1037
Mahmoud Mosleh; Elham H. El-Hakim; Anwar Z. Ahmed; Mohamed S. Abd El-Ghany; Akram Mohamed El-Didamony. "Uranium extraction from different acidic media using a novel solvent-impregnated resin". Bulletin of Faculty of Science, Zagazig University, , , 2020, -. doi: 10.21608/bfszu.2020.40456.1037
Mosleh, M., El-Hakim, E., Ahmed, A., Abd El-Ghany, M., El-Didamony, A. (2020). 'Uranium extraction from different acidic media using a novel solvent-impregnated resin', Bulletin of Faculty of Science, Zagazig University, (), pp. -. doi: 10.21608/bfszu.2020.40456.1037
Mosleh, M., El-Hakim, E., Ahmed, A., Abd El-Ghany, M., El-Didamony, A. Uranium extraction from different acidic media using a novel solvent-impregnated resin. Bulletin of Faculty of Science, Zagazig University, 2020; (): -. doi: 10.21608/bfszu.2020.40456.1037
Uranium extraction from different acidic media using a novel solvent-impregnated resin
Articles in Press, Accepted Manuscript, Available Online from 17 October 2020
1Chemistry Department, Faculty of Science, Zagazig University
2Nuclear Metallurgy Department, Nuclear Research Center, Atomic Energy Authority
3Production Sector, Nuclear Materials Authority
4Department of Chemistry, Zagazig University
Abstract
In present study, uranium (VI) extraction from different acidic media (e.g. H2SO4, HCl and HNO3 aqueous solutions) using tri-n-octylamine (TOA) impregnated into Siplite LX-16 polymeric resin has been investigated using batch experiments. The extraction parameters including aqueous pH, free acidity, salting-out agent addition, initial uranium concentration, volume of aqueous solution to weight of the impregnated resin (v/w) ratio and the phases contact time have been studied. Batch adsorption studies reveal that the prepared TOA/Siplite LX-16 has a significant capacity for the adsorption of U(VI) from aqueous solutions. The maximum sorption capacity of U(VI) from sulfate solution onto the working resin was 92.74 mg/g at an optimum pH range from 1.4 to 1.6. Quantitative desorption of the extracted uranium has successfully been achieved using 0.75 M NaCl acidified with 0.15 M HCl solution. Finally, a complete precipitation of uranium from the eluate solution was attained by hydrogen peroxide precipitation at pH 2.