Ore Leashing Processing for Yellow Cake Production and Assay of their Uranium Content by Radiometric Analysis

摘要

In this study, Ore granite samples were collected from Gattar site for leashing of yellow cake. The process involves heap leaching of uranium through four main steps; size reduction, leaching, uranium purification, and finally precipitation and filtration. The separation process has been given in details and as flow chart. Gamma spectrometry based on HpGe detector and energy dispersive X-ray (EDX) were used to assay uranium content and activity before and after separation. The uranium weight percentage value as measured by EDX were found to be 40.5 and 67.5% before and after purification respectively. The results of the calculations based on gamma measurements show high uranium activity and the uranium activity ratios values are 0.045 +/- 4.9, 0.043 +/- 4.7, and 0.046 +/- 2.3%, before purification, whereas these values were found to be 0.050 +/- 3.3, 0.049 +/- 3.3, and 0.050 +/- 2.7%, after purification, respectively. The results are discussed in details in the paper.