Leaching of Scandium From Scandium Concentrate by HCl and 7~# reagent

The condition experiments of leaching scandium from scandium concentrate with HCl and 7~(#) reagent is carried out. The experimental optimum conditions are that concentration of HCl is (30.4)%,ratio of liquid to solid is 2.5∶1,leaching temperature is 90 ℃ ,leaching time is 10 hours,(particle) size of ore is less than 0.046 mm, and dosage of 7~(#) reagent is 40 g/t. Under the optimum (conditions),the leaching of scandium is 80.47%.