A review on rubidium and cesium extraction methods from geothermal and radioactive sourced materials

TD Christopher & EK Mroczek
A review has been undertaken of methods employed to extract rubidium and cesium from a range of different aqueous sources at the laboratory and pilot scale. The techniques included solvent extraction, ionic exchange and fractional precipitation. In this study, we evaluated the extraction potentials of selected extraction methods on simulant solutions containing rubidium and cesium at concentrations similar to that found in geothermal waters in New Zealand (~5 mg/kg). Our work has shown that the...
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