Separation method for cupric oxide and copper sulfide mixed ore

Abstract

The invention discloses a separation method for cupric oxide and copper sulfide mixed ore. The separation method comprises the following steps: S1, grinding the cupric oxide and copper sulfide mixed ore to below the grade of 0.074mm accounting for 60 to 70 percent of fineness; S2, adding a regulator, a collector and a foaming agent for floating copper sulfide ore into ore pulp obtained from S1; S3, grinding copper sulfide rough concentrate obtained from S2, and carrying out aeration floatation to obtain copper sulfide concentrate; S4, adding a vulcanizing agent, the regulator, the collector and the foaming agent into copper sulfide rougher tailings obtain from S2 and carrying out floatation to obtain cupric oxide rough concentrate; and S5, adding the vulcanizing agent, the regulator, the collector and the foaming agent into the cupric oxide rough concentrate obtained from S4, carrying out floatation to obtain cupric oxide concentrate and cleaner tailings, scavenging the cleaner tailings and outputting the cleaner tailings. By use of the separation method disclosed by the invention, the copper sulfide concentrate and the cupric oxide concentrate with higher grade and higher recoveryrate can be obtained, so that the investment is saved; and the separation method can be applied to industrial production.

Description

technical field [0001] The invention belongs to the technical field of copper ore treatment, and in particular relates to a method for sorting copper oxide and copper sulfide mixed ore. Background technique [0002] Among the copper ore resources, a certain amount of oxygen-sulfur mixed copper ore resources have been formed after the copper sulfide deposits have been wind-eroded and oxidized. Due to the large surface tension of the copper oxide ore, it will have a strong effect when it meets water, and its minerals The structural structure of the composition is also relatively complex, which makes the separation of copper oxide minerals more difficult. The general mixed copper ore flotation technology has a good recovery effect for copper sulfide ore (primary chalcopyrite, secondary copper and copper blue), but the separation recovery rate for copper oxide ore is low. [0003] At present, the mixed flotation process is adopted for the mixed ore of copper sulfide ore and cop...

AI Technical Summary

Problems solved by technology

[0004] In addition, for the mixed ore of copper sulfide ore and copper oxide ore, the hydrometallurgy process of stirring and leaching, extraction, and electrowinning of the extract is used to recover, and the recovery rate of copper sulfide is low; bacterial heap leaching is used for extraction, and then electrowinning smelting process, the production cycle is as long as 6 months or even several years, and the recovery rate of leaching is unstable; stirring leaching, leaching slag flotation, leachate extraction, and electrowinning processes are used, and solid-liquid separation equipment is required for leaching tailings. The continuity and stability of the dressing pulp are poor, the flotation fluctuation is large, and it is not easy to operate in industrial production

Images