METHOD FOR THE TREATMENT OF COPPER-BEARING MATERIALS

摘要

The present invention relates to a method for the treatment of copper-bearing materials, such as copper concentrates, so that the impurities and gangue minerals in the materials, such as silicates, are in effect removed completely. The copper leaving material is leached and the leaching product is converted in the presence of material containing iron sulphide in order to produce copper sulphide. Gangue mineral separation is carried out on the copper sulphide produced by the converting step before further processing of the copper sulphide. The copper sulphide produced can be routed to a smelter for the fabrication of raw copper.