Selection method for copper sulfide copper minerals and associated elements thereof

Abstract

The invention belongs to mineral processing field, relates to a beneficiation method, and particularly relates to a selection method for copper sulfide copper minerals and associated elements thereof. The method comprises rapid flotation, bulk flotation and selection period flotation. The rapid flotation step is composed of one-time rougher flotation and one-time selection. The bulk flotation step is composed of one-time copper-sulfur mixing rougher flotation and two-time scavenging. The selection period flotation step is composed of one-time rougher flotation, two-time selection, and three-time scavenging. By means of the selection method for the copper sulfide copper minerals and the associated elements thereof, rapid flotation is conducted on rough concentrate, pyrite is little in content, copper minerals are mainly monomers and rich aggregates, and selection is conducted under a weak alkali environment, so that lime is saved, and recycling of the associated elements is guaranteed at the same time. Bulk flotation is conducted on the rough concentrate, pyrite and copper-poor aggregates are high in content, regrinding high-alkali separation process is adopted, and therefore the tenor and the recovery rate of copper are enabled to be high.

Description

[0001] technical field [0002] The invention belongs to the field of mineral processing, and relates to a beneficiation method, in particular to a beneficiation method for copper sulfide ore copper and its associated elements; Background technique [0003] Over the years, copper sulfide mines at home and abroad have either adopted copper-sulfur mixed flotation separation process, which is difficult to separate copper and sulfur, and the grade of copper concentrate is difficult to guarantee; or adopted priority flotation process, which is difficult to recover due to strong inhibition of sulfur, and the recovery rate of associated elements Not high; the present invention provides a low-grade copper sulfide low-alkali flotation new process for low-grade sulfide ore with low grade, high degree of oxidation, and net-like dissemination and embedded cloth, which improves the grade of copper concentrate and reduces the amount of lime The amount used ensures the recovery of the asso...

AI Technical Summary

Problems solved by technology

[0003] Over the years, copper sulfide mines at home and abroad have either adopted copper-sulfur mixed flotation separation process, which is difficult to separate copper and sulfur, and the grade of copper concentrate is difficult to guarantee; or adopted priority flotation process, which is difficult to recover due to strong inhibition of sulfur, and the recovery rate of associated elements Not high; the present invention provides a low-grade copper sulfide low-alkali flotation new process for low-grade sulfide ore with low grade, high degree of oxidation, and net-like dissemination and embedded cloth, which improves the grade of copper concentrate and reduces the amount of lime The amount used ensures the recovery of the associated resource molybdenum;

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