SULFATATION METHOD FOR METAL RECOVERY FROM SULFIDE ORES

摘要

FIELD: hydrometallurgy, in particular treatment of metal containing sulfide ores and concentrates.;SUBSTANCE: reaction is carried out by mixing of metal containing sulfide ores and concentrates, wherein said metal is selected from group comprising of iron, copper, zinc, nickel, cobalt, and manganese, with concentrated sulfuric acid at temperature of 300-400C in presence of oxygen to provide solid metal sulfate and gaseous reaction product, essentially sulfur trioxide. Solid metal sulfate is extracted with diluted (5 %-35 %) sulfuric acid solution to recover metal components therefrom and to form metal containing solution. Formed sulfur trioxide is compounded with metal containing solution to deposit metal sulfate from said solution and to obtain sulfuric acid with concentration in solution of about 35-50 %.;EFFECT: method for production of high purity metal sulfates without using of additional reagent amount.;8 cl, 11 ex