Separation of strontium from nuclear waste solutions by solvent extraction with crown ethers

  • E. Blasius
  • W. Klein
  • U. Schön


The possibilities of strontium separation from medium activity waste (MAW) solutions have been investigated. MAW originates from the PUREX process and contains NaNO3 and HNO3 in a large excess. By solvent extraction with the crown ether dicyclohexano-18-crown-6 (DC-18-C-6) in 1,1,2,2-tetrachloroethane, separation is possible. The distribution ratio for Sr2+ depends on the concentration of HNO3, NaNO3 and Pb(NO3)2. The extraction system is employed in a continuous counter-current process. After use, the extraction agent can easily be regenerated by reextraction with pure water.


HNO3 Strontium Solvent Extraction Pure Water NaNO3 
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Copyright information

© Akadémiai Kiadó 1985

Authors and Affiliations

  • E. Blasius
    • 1
  • W. Klein
    • 1
  • U. Schön
    • 1
  1. 1.Anorganische Analytik und RadiochemieUniversität des SaarlandesSaarbrücken(FRG)

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