Radiochemical Study of Re/W Adsorption Behavior on a Strongly Basic Anion Exchange Resin
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Matthew D. Gott
Abstract
Rhenium-186g is a radionuclide with a high potential for therapeutic applications. It emits therapeutic β− particles accompanied by low energy γ-rays, which allows for in-vivo tracking of the radiolabeled compound and dosimetry estimates. The current reactor production pathway 185Re(n, γ)186gRe produces low specific activity 186gRe, thereby limiting its therapeutic application. Work is underway to develop an accelerator-based, charged particle induced production method for high specific activity 186gRe from targets of enriched 186W. To optimize the chemical 186gRe recovery method, batch studies have been performed to characterize the adsorption behavior of Re and W on a strongly basic anion exchange resin. An in-depth physicochemical profile was developed for the interaction of Re with resin material, which showed the reaction to be endothermic and spontaneous. Basic (NaOH) and acidic (HNO3) matrices were used to determine the equilibrium distribution coefficients for Re and W. The resin exhibits the best affinity for Re at slightly basic conditions and little affinity above moderately acidic concentrations. Tungsten has low affinity for the resin above moderately basic concentrations. A study was performed to examine the effect of W concentration on Re adsorption, which showed that even a high ionic WO42– strength of up to 1.9 mol kg–1 does not significantly compromise ReO4– retention on the resin.
©2014 Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- TEM study of Green Rust Sodium Sulphate (GRNa,SO4) Interacted with Neptunyl Ions (NpO2+)
- Study on the identification of organic and common anions in the pyrohydrolysis distillate of mixed uranium-plutonium carbide for the interference free determination of chlorine and fluorine by ion chromatography
- Actinides sorption onto hematite: experimental data, surface complexation modeling and linear free energy relationship
- Research reactor fuel element corrosion under repository relevant conditions: separation, identification, and quantification of secondary alteration phases of UAlx-Al in MgCl2-rich brine
- Radiochemical Study of Re/W Adsorption Behavior on a Strongly Basic Anion Exchange Resin
- Chronological development of element concentrations in grapes during growth and ripeness and during fermentation of must determined by instrumental neutron-activation analyses
- Parametric investigations on proton conducting membrane by radiation induced grafting of 4-vinylpyridine onto poly(vinylidene fluoride) and phosphoric acid doping
- Zirconium-titanium-phosphate nanoparticles: Triton X-100 based size modification, characterization and application in radiochemical separation
Artikel in diesem Heft
- Frontmatter
- TEM study of Green Rust Sodium Sulphate (GRNa,SO4) Interacted with Neptunyl Ions (NpO2+)
- Study on the identification of organic and common anions in the pyrohydrolysis distillate of mixed uranium-plutonium carbide for the interference free determination of chlorine and fluorine by ion chromatography
- Actinides sorption onto hematite: experimental data, surface complexation modeling and linear free energy relationship
- Research reactor fuel element corrosion under repository relevant conditions: separation, identification, and quantification of secondary alteration phases of UAlx-Al in MgCl2-rich brine
- Radiochemical Study of Re/W Adsorption Behavior on a Strongly Basic Anion Exchange Resin
- Chronological development of element concentrations in grapes during growth and ripeness and during fermentation of must determined by instrumental neutron-activation analyses
- Parametric investigations on proton conducting membrane by radiation induced grafting of 4-vinylpyridine onto poly(vinylidene fluoride) and phosphoric acid doping
- Zirconium-titanium-phosphate nanoparticles: Triton X-100 based size modification, characterization and application in radiochemical separation
