What is it about?
A Chelating resin derived from glycidyl methacrylate and crosslinked with divinylbenzene was prepared. The obtained resin was anchored with PEHA as active moieties to give GMA/DVB/PEHA, which shows a high capacity for Th(IV) and U(VI). The adsorption of Th(IV) and U(VI) was found to proceed according to pseudo second order kinetics indicating the influence of textural properties of resin on the rate of adsorption. The thermodynamic parameters obtained showed that the adsorption process is endothermic, spontaneous process and dominated by entropy rather than enthalpy change.
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Why is it important?
Quantitative recovery of uranium and thorium (114 and 78 mg/g, respectively) were achieved by GMA/DVB/PEHA.
Perspectives
Quantitative recovery of uranium and thorium (114 and 78 mg/g, respectively) were achieved by GMA/DVB/PEHA.
Dr Mahmoud Osman Abd El-Magied
Nuclear Materials Authority
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This page is a summary of: Uranium(VI) and Thorium(IV) Adsorption Studies on Chelating Resin Containing Pentaethylenehexamine as a Functional Group, Journal of Dispersion Science and Technology, May 2014, Taylor & Francis,
DOI: 10.1080/01932691.2013.809507.
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