METHOD FOR PRODUCING COPPER CONCENTRATES FROM COMPLEX COPPER ORE USING LEACHING AND CEMENTATION

摘要

The present invention relates to a complex copper ore concentration method using leaching and cementation. The complex copper ore concentration method using leaching and cementation which is a method for producing copper concentrate from complex copper raw ore containing talc-containing gangue mineral and copper-containing mineral comprises: a talc removing step of separating talc from the copper-containing mineral by floating talc and depositing the copper-containing mineral in an ore solution through floatation with respect to the complex copper raw ore which was crushed and pulverized in order to remove talc; copper leaching step of putting acid in the ore solution containing the complex copper raw ore from which talc is removed in order to leach copper contained in the copper-containing mineral; a copper precipitating step of putting a reducing agent which is higher in ionization than copper ion and has magnetism in the ore solution in which copper is deposited in order to precipitate copper onto the surface of the reducing agent through cementation; a magnetic separation step of separating magnetic materials from the ore solution through magnetic separation; and a copper concentrate producing step of separating copper by floating copper onto the ore solution and depositing the reducing agent in the ore solution through floatation with respect to the magnetic materials separated in the magnetic separation step.