| Title |
Alkaline Leaching of Uranium Ore from the Deposit of Okchon Series |
| Authors |
이효숙(Hyo Sook Lee); 한규진(Kyu Jin Han); 김대수(Dae Soo Kim) |
| Abstract |
Alkaline leaching of an uranium containing coaly shale in Okchon Series was investigated under the various oxygen partial pressure and different alkaline concentrations. The relationship between oxygen partial pressure, P, and uranium leachability, X, was determined as follows: X＝kP^(0.34), X＝kp^(0.11) for carbonate and carbonate-bicarbonate solutions, respectively, where k is an overall rate constant. As the carbonate concentration increased the leachability of uranium increased up to 80 %. With the mixture of carbonate-bicarbonate solutions higher leachability was obtained. |