Assessment of certain theoretical modeling for extraction data of uranium ion by loaded SM-7 with TBP using fixed bed column operation

Theoretical evaluation of experimental extraction data of U (VI) from nitric acid solutions by tri-n-butyl phosphate (TBP) loaded on macro reticular polymer SM-7 was verified using Thomas and Yan models. These data are represented by breakthrough relations at different conditions; flow rate, concentrations and interfering ions. Comparing correlation coefficients (R${}^2$) of both models, it was found that R${}^2$ equal 0.96 for Thomas model comparing to 0.88 for Yan one, indicating that Thomas model is convenient for evaluation of that extraction process. The calculated, theoretically, value of (q${}_{Th}$) was found to be almost equal to (q${}_{exp}$) the practical one.