Inhibitor for separating blue chalcocite and iron pyrite and mineral separation method thereof

Abstract

The invention provides an inhibitor for separating blue chalcocite and iron pyrite and a mineral separation method of the inhibitor. The inhibitor is formed by mixing citric acid, sodium sulfite and gallotannic acid according to the mass ratio of 0.5 to 0.65:1.0 to 1.2:1.5 to 1.65. The mineral separation method mainly comprises the technological steps that firstly, raw ore of the blue chalcocite is ground into ore pulp with 30 to 35 percent mass concentration, catching agent sodium n-butylxanthate and ester-112 are added into the ore pulp, stirring is carried out for two minutes to four minutes, copper and sulphur mixing flotation is carried out, and copper and sulphur mixing rough concentrates are obtained; secondly, secondary selection is carried out on the copper and sulphur mixing rough concentrates to obtain copper and sulphur mixing concentrates; thirdly, the inhibitor is added into the copper and sulphur mixing concentrates, copper and sulphur separation is carried through flotation, and copper rough concentrates and sulphur rough concentrates are obtained; fourthly, copper concentrates are obtained through one-time to two-time selection of the copper rough concentrates, and sulphur concentrates are obtained through one-time selection of the sulphur rough concentrates.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation separation, and in particular relates to an inhibitor for separation of blue chalcocite and pyrite and a method for beneficiation using the inhibitor. Background technique [0002] In my country's non-ferrous metal resources, copper ore is a resource with high mining value. There are relatively complete types of copper deposits in my country, mainly copper sulfide, and less secondary blue chalcocite, and the secondary blue chalcocite belongs to the type of copper ore that is difficult to be separated. With the rapid development of my country's economy, the demand for copper metal is increasing, but mineral resources are non-renewable resources, and my country's copper mineral resources are decreasing after years of mining, so there is an urgent need to develop and utilize complex and difficult-to-select resources. The beneficiation of blue chalcocite is mainly to separate blue chalcoci...

AI Technical Summary

Problems solved by technology

[0003] 1) The pipeline is fouled, easy to block, and the mine wastewater is seriously polluted;

[0004] 2) It is not conducive to the comprehensive recovery of valuable associated elements;

[0005] 3) The collector ester-112 is easy to react with lime, causing sticky copper concentrate foam and affecting the quality of copper concentrate;

[0006] 4) The activity of the secondary blue chalcocite itself is poor, and the blue chalcocite is easily lost in the tailings by using this process, resulting in a low recovery rate;

[0007] 5) Extensive use of lime will increase the cost of beneficiation