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Studies on uranium extraction from leach liquor of the mineralized shear zone at El-Missikat area using tri-n-octylamine

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Abstract

Fast extraction of uranium from Egyptian low-grade uranium mineralization sulfate leach liquor was studied with kerosene solutions of tri-n-octylamine (TOA). The parameters affecting uranium extraction were studied and the optimum conditions were determined. The equilibrium isotherm demonstrated the association of four moles of TOA per mole of uranium. Thermodynamic studies at different temperatures indicated that the extraction process was exothermic, favorable and spontaneous in nature. The organic phase loaded with uranyl sulfate under the optimum extraction conditions were examined by infrared spectrometry. The McCabe–Thiele plot for circuit of uranium with TOA predicted three extraction stages and two stripping stages.

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Authors and Affiliations

  1. Nuclear Materials Authority, P.O. Box 530, Maadi Kattameya, Cairo, Egypt

    Mohammed Ramadan Ahmed, Hesham Samir Mohammed & Mohamed Galal El-Feky

  2. Department of Chemistry, Faculty of Science, Menoufia University, Shibin El Kom, Egypt

    Yasser Kamal Abdel-Monem

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  1. Mohammed Ramadan Ahmed
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Correspondence to Hesham Samir Mohammed.

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Ahmed, M.R., Mohammed, H.S., El-Feky, M.G. et al. Studies on uranium extraction from leach liquor of the mineralized shear zone at El-Missikat area using tri-n-octylamine. J Radioanal Nucl Chem 327, 731–743 (2021). https://doi.org/10.1007/s10967-020-07545-3

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