Beneficiation method for complex and difficult-to-treat copper-sulfur sulfide ore

Abstract

The invention belongs to the technical field of beneficiation, and discloses a beneficiation method of complex and difficult-to-treat copper-sulfur sulfide ore. The method comprises the steps of firstly, grinding, then adding an organic regulator, a collecting agent and a foaming agent for pulp mixing, roughing to obtain copper sulfide roughing concentrate, further concentrating to obtain copper concentrate, carrying out flotation on copper sulfide roughing tailings to obtain pyrite roughing concentrate, and further concentrating the pyrite roughing concentrate to obtain sulfur concentrate. The organic regulator is adsorbed on the surface of the pyrite to form a hydrophilic film to inhibit the pyrite, meanwhile, the electrochemical corrosion effect of the pyrite and copper sulfide in flotation pulp can be reduced, the activation effect of dissolution of copper ions in copper sulfide ore on the pyrite is reduced, and meanwhile through the synergistic effect of flotation collecting agents, the collection of copper sulphide ore is enhanced, so that the copper sulphide ore is separated under low alkalinity, and the use amount of lime is reduced; the organic regulator used in the invention is easy to degrade and less in environmental pollution.

Description

Technical field [0001] The present invention belongs to the selection technique, and more particularly to a complicated method for complex treatment of copper sulfide. Background technique [0002] At present, copper is an important material for modern human society, and its application is very important for industrial development. As the largest developing country, my country's first in China is the world. In 2015, China has a copper metal amount of copper metal, accounting for 8.7% of global production, accounting for 29.5% of the total demand in China, and the external dependency is high. Most copper metals are refined from copper sulfide, and copper and sulfur are usually accompanied by copper sulfur ore, copper sulfide ore ore is an important source of extracting copper sulfide ore. my country is a large country of copper ore, and the resource reserves ranks in the world. However, the amount of per capita resources is serious. At the same time, my country's copper ore resour...

AI Technical Summary

Problems solved by technology

[0004] The problems existing in the prior art are: (1) the addition of a large amount of lime in the slurry will cause the low rate of recovery of associated precious metals;

[0005] (2) It will cause pyrite ore to be difficult to recover, and pipeline fouling and blockage

[0006] (3) Causes mineral processing wastewater to be difficult to deal with and affects the environment and other issues

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