Separation of strontium from nuclear waste solutions by solvent extraction with crown ethers |
| |
Authors: | E. Blasius W. Klein U. Schön |
| |
Affiliation: | 1. Anorganische Analytik und Radiochemie, Universit?t des Saarlandes, Saarbrücken, (FRG)
|
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|