Recovery of Uranium(VI) from Sulfate Leach Liquor using Modified Duolite

Abstract

Silicate mercapto Duolite composite (SMDC) and activated Duolite A 101 D (AD) were prepared, characterized, and tested for uranium removal from sulfate solution using batch experiment technique. The capability of newly adsorbents for sorption of uranium was estimated and optimized under different controlling variables, including the impact of uranium initial concentration, pH of the medium, equilibrium time, temperatures, dose and interfering ions. Testing of different adsorbents for adsorption isotherms revealed that the achieved experimental data were fitting well with the Langmuir isotherm model with 68.02 mg·g -1 and 208.33 mg·g -1 as theoretical ca-* L. A. Yousef E-Mail: drlamiayousef_77@live.com [a] Nuclear Materials Authority

New Aspects of Uranium Ore Concentration by using Acidic Media Solutions

“…The effect of the solid to acid ratio has been achieved using acid concentrations 40 % with a soaking time of 48 h and the abovementioned leaching conditions for the UM sample at room temperature. The uranium concentration in the solid sample is an important factor which is effective in the produced uranium adsorption through leaching process [27] . Figures 4a, b, and c show the leaching uranium isotopes values vs solid to acid ratio for different samples.…”