A new study on Uranium (VI) stripping from loaded Alamine 336 using some of alkaline solutions

Stripping of U (VI) from loaded Alamine 336 by synthetic sulphuric acid solution and real leach liquor solution was investigated by employing various stripping agents comparing (NH4)2CO3, NH4Cl and Na2CO3 in the concentration range of 0.25-2.00 mol/L and phase ratio of 0.5-5.0. To study the effect of the operating parameters and to find optimum conditions, response surface methodology was employed. U (VI) stripping efficiency under the optimum conditions (0.8, 0.6 and 0.72 mol/L at the stripping concentrations as well as 1.81, 1.16 and 1.16 values for organic/aqueous phases ratio) equaled 67.32, 42.18 and 54.13% of (NH4)2CO3, NH4Cl and Na2CO3 stripping efficiencies, respectively.