Copper iron sulphide ore treatment - comprising leaching of ore concentrates

摘要

Processing copper iron sulphide ore concentrates for the hydrometallurgical prodn. of metallic copper where the ore concentrates are leached to solubilize the copper, comprises the step of making the copper iron sulphide in the ore concentrates more responsive to the leaching by reacting S vapour with the ore concentrates to form a reaction prodt. with =70% of the copper-contg. material in the reaction prodt. being x-bornite.