kinetic and thermodynamic evaluation of the uranium (vi) stripping from alamine-336 in the presence of iron (iii)

An economic process was developed via the batch scale for the uranium (vi) stripping in the presence of iron (iii) from loaded alamine-336 by ammonium carbonate solution. the optimum conditions were assessed for the uranium (vi) stripping using the central composite design method, which is a subset of response surface methodology. the r-squared, u (vi), and fe (iii) stripping percentages with a value of equal 0.989, 72.61%, and 0.1% were obtained, respectively in the optimum conditions of the u (vi) and fe (iii) stripping from loaded alamine336. the optimum stripping conditions led to the obtaining of the ammonium carbonate concentration equal to 0.64 mol/l, the phase ratio of 0.8 (o/a), the temperature of 53 , the contact time of 2510 seconds, and the shaking speed of 1100 rpm. moreover, the stripping kinetics, equilibrium constant, and thermodynamic data were determined to describe the nature of the u (vi) and fe (iii) stripping from loaded alamine336 by the ammonium carbonate solution. the temperaturedependent data showed that the u (vi) stripping was an endothermic process.