Patent ID: 8470269
Filing Date: 2013-06-25
Classification: C22B

Abstract:
1. A uranium leaching method comprising: mixing water, sulfuric acid, manganese dioxide (MnO2) as an oxidant, and iron sulfate in an amount of 2 to 5 g/l with uranium ore to prepare a mixture for uranium leaching while applying ultrasound during the uranium leaching, wherein an oxidation-reduction potential is 450 to 600 mV during the uranium leaching, wherein the uranium leaching is carried out at a temperature of 20 to 40° C., wherein the ultrasound is applied at an output power of 10 to 90 W during the uranium leaching, and wherein consumption of the oxidant is controlled to be equal to or less than 27.0 g per 1 Kg of uranium during the uranium leaching.