Solvent extraction of Cs by crown compounds

Sasaki, Yuji  ; Yoshizuka, Kazuharu*

It is important to study the solvent extraction of Cs, therefore the study on the diluent for the crown compounds is necessary. In this work, we investigate the physical properties of diluents and Cs extraction using the extraction solvents. The results indicate that distribution of Cs is higher when diluent having higher dielectric constant is used. Furthermore, the results using 2-nonanone, which have high dielectric constant, give the strong dependence of D(Cs) on nitric acid concentration.