Efficient flotation separation method of copper sulfide ores

Abstract

The invention discloses an efficient flotation separation method of copper sulfide ores. The method includes the steps: taking the copper sulfide ores to perform ore grinding, and adjusting the mass percentage concentration of ore pulp to reach 40%; adding calcium oxide into the ore pulp according to the proportion of 800g / t-1500g / t, adding combination regulators into the ore pulp according to theproportion of 150g / t-260g / t, and adding combination collectors into the ore pulp according to the proportion of 80g / t-120g / t. The combination regulators comprise, by weight, 10-20 parts of sodium sulfide, 10-30 parts of sodium hexametaphosphate and 5-10 parts of sodium humate. The combination collectors comprise, by weight, 1-3 parts of acrylonitrile alkyl xanthate, 0.5-2 parts of Xanthate diester, 0.5-1 part of ammonium dibutyl dithiophosphate, 1-2 parts of methyl benzyl thiazide and 1-2 parts of terpene alcohol. According to the method, efficient flotation separation of copper sulfide and gangue minerals is achieved, concentrate quality is high, and environmental pollution is omitted.

Description

technical field [0001] The invention relates to a high-efficiency flotation separation method for copper sulfide ore, and belongs to the technical field of flotation separation. Background technique [0002] Copper is a non-ferrous metal closely related to human beings. It is widely used in electrical, light industry, machinery manufacturing, construction industry, defense industry and other fields. It is second only to aluminum in the consumption of non-ferrous metal materials in China. my country is a country with a relative shortage of copper resources, the per capita copper possession is very small, and the copper self-sufficiency rate is only 30%. With the rapid development of my country's economy, the demand for copper is increasing, and the contradiction between supply and demand will become more and more prominent. It is very necessary to comprehensively recycle my country's complex copper resources to alleviate the contradiction between supply and demand of my count...

AI Technical Summary

Problems solved by technology

For copper sulfide ores containing easily muddy gangue minerals, collectors are required to have higher selectivity, and the traditional reagent system has many shortcomings in flotation of such ores: xanthate is the most widely used, and its collection capacity is strong , but the selectivity is poor; the selectivity of black medicine is better than that of xanthate, and it has foaming properties. For the slurry system containing a large amount of slime, the use of black medicine will often cause sticky foam and increase the degree of mechanical inclusion; sulfur and nitrogen collection The capacity, flotation speed, and selectivity are all better than xanthate, but the chemical properties of sulfur and nitrogen are unstable and sensitive to ore slime; sulfur urethane has good selectivity, strong ability to collect copper, and stable chemical properties , but thiourethane has a strong foaming property, which will cause the flotation foam to be too stable, aggravate the degree of mechanical inclusion, and reduce the quality of the concentrate

[0005] In order to effectively solve the problem of recycling copper sulfide ore containing easily muddy gangue minerals, the present invention provides a high-efficiency flotation separation method for copper sulfide ore

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