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Gold ore composite collecting agent and application thereof

A composite collector and collector technology, applied in solid separation, flotation, etc., can solve the problems of high grade tailings, low recovery rate of gold concentrate, and inability to directly throw tails, etc.

Active Publication Date: 2021-09-17
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Flotation is an important technical means in the gold ore beneficiation process, but the current flotation reagents for quartz vein-altered rock type gold mines generally have the disadvantages of poor mineral selectivity, high tailings grade and cannot be directly thrown, gold concentrate Mineral recovery rate is low

Method used

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  • Gold ore composite collecting agent and application thereof
  • Gold ore composite collecting agent and application thereof
  • Gold ore composite collecting agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Raw ore: Tugurige Gold Mine located in Bayannaoer City, Inner Mongolia, is a large quartz vein deposit. There are two types of ore in the deposit: gold-bearing quartz vein-type ore and gold-bearing altered rock-type ore. The main gold-bearing minerals are It is natural gold and tellurite, which is associated with pyrite, galena, limonite, hematite and quartz; non-metallic minerals are quartz, feldspar, a small amount of chlorite and calcite; the Au grade in the ore is 1.2 ~6g / t, the average Au grade is 4.2g / t;

[0086] Main collector: the mass ratio of xanthate, black medicine, fatty acid salt and mercaptan salt is 50:25:20:5, among which, xanthate is ethyl xanthate, butyl xanthate and Y89 xanthate according to the mass ratio 5:90:5 mixture, the black medicine is a mixture of butyl ammonium black medicine and No. 31 black medicine according to the mass ratio of 90:10, the fatty acid salt is oxidized paraffin wax soap, and the mercaptan salt is di-n-butyl-2- Mercapto-et...

Embodiment 2

[0110] The mass ratio of xanthate, black powder and fatty acid salt in the main collector is 60:35:5, and the rest of the technical means are the same as in Example 1 to obtain gold concentrate and tailings.

Embodiment 3

[0122] The mass ratio of xanthate, black powder, fatty acid salt and mercaptan salt in the main collector is 45:35:15:5, and other technical means are the same as in Example 1 to obtain gold concentrate and tailings.

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Abstract

The invention belongs to the technical field of flotation, and particularly relates to a gold ore composite collecting agent and application thereof. The gold ore composite collecting agent comprises a main collecting agent and an auxiliary collecting agent which are independently subpackaged; the main collecting agent comprises xanthate, black powder and fatty acid salt; and the auxiliary collecting agent comprises diisooctanoic acid thioether, RA935 and sodium linoleate. According to the method, the selectivity and collecting capacity of the main collecting agents on the gold-containing sulfide are different, the selective collecting effect of the gold-containing sulfide is improved through synergistic cooperation, the collecting effect of gold-containing oxides such as hematite is improved through fatty acid salt, and the main collecting agents have colloidal bundles of active functional groups of xanthate, black powder and fatty acid salt; common adsorption of sulfides, altered pyrite and oxides in the quartz vein-altered rock type gold ore is facilitated, and the oxygen-sulfur mixed flotation effect is improved; and through the synergistic effect of the auxiliary collecting agent, the collecting effect of gold minerals and gold-containing oxides in the quartz vein-altered rock type gold ore is further improved.

Description

technical field [0001] The invention belongs to the technical field of flotation, in particular to a gold ore composite collector and its application. Background technique [0002] Quartz vein type gold deposit refers to a type of deposit formed by metasomatism and precipitation of hot water solution in vein shape. The main useful minerals in the ore are natural gold and a small amount of tellurite. The main metal minerals include pyrite, Chalcopyrite and galena, minor metallic minerals include antimony tetrahedrite, stibnite, sphalerite and azurite; major non-metallic minerals include quartz, feldspar, a small amount of chlorite and calcite. The embedded particle size of natural gold in the ore ranges from 0.2 to 300 μm. Except for a small amount of natural gold particles which are relatively coarse, the embedded particle size of most gold minerals is fine, and most of them are embedded in pyrite and galena in a dispersed form. , quartz, limonite or hematite and other mine...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D1/008B03D1/02B03D101/02B03D103/02
CPCB03D1/012B03D1/008B03D1/025B03D2201/02B03D2203/025
Inventor 李春风刘志超李广唐宝彬马嘉强录德
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY