فراوري اورانيوم و مس كانسنگ دچان به روشهاي فروشويي ستوني و بطري چرخان

Uranium and Copper Processing of Dochan Deposit by Column and Rotating Bottle Leaching

Dochan deposit is located in 30km north-west of Sarab. As the Dochan has a low grade uranium ore and due to its high permeability, different leaching methods (e,g. bottle rotation, and column leaching) in bench scale by using sulfuric acid were tested. Bottle rotation tests were carried out in two different column sizes of small and medium, and obtained results showed that the ore comminution effects the kinetics of metal recovery, but has little effect on recovery value, using 160 kg/ton.ore of sulfuric acid with 78 l/ton.ore flow rate. Material used in bottle rotation tests were 4 mesh and 28 mesh in size and results indicated that a pulp with 33% solids in weight would be recommended in leaching, using 122.6 gr (245 kg/ton.ore) of sulfuric acid at pH=0.2 for 4 hours.