Strontium and cesium extraction into hydrocarbons using alkyl cobalt dicarbollide and polyethylene glycols

  • R. M. Chamberlin
  • K. D. Abney
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The extraction of strontium and cesium ions from high ionic strength acid, base, and salt solutions into an organic extractant consisting of alkyl cobalt dicarbollide and polyethylene glycol (PEG) in diethylbenzene was investigated. Adding hexaethylene glycol or PEG-400 improved the strontium extraction ≥100-fold, while cesium extraction was decreased at high PEG concentrations. The extractions are rapid and selective, even in the presence of molar concentrations of sodium ion, suggesting that alkyl cobalt dicarbollide extractants are useful for the treatment of alkaline nuclear wastes. A method for the synthesis of tetra-n-hexyl(cobalt dicarbollide) is described.


Hydrocarbon Ionic Strength Strontium Cesium Molar Concentration 
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Copyright information

© Akadémiai Kiadó 1999

Authors and Affiliations

  • R. M. Chamberlin
    • 1
  • K. D. Abney
    • 1
  1. 1.Chemical Science and Technology Division, CST-11Los Alamos National LaboratoryLos AlamosUSA

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