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Collecting method for monomer gold particles

A particle and monomer technology, applied in the field of mining engineering, can solve the problems of complex equipment configuration, pollution of production environment, difficult connection, etc., and achieve the effect of saving capital construction investment, strong operability, and simple process.

Inactive Publication Date: 2018-02-16
CHANGCHUN GOLD RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] my country's gold resources can be divided into two types, namely, rock gold and placer gold, of which placer gold accounts for about 10% of the total reserves, and the single particle gold in the recovery placer gold has been produced for many years, usually using amalgamation method, heavy Selecting methods (such as Nelson, water jacket, jigging, spiral chute, shaking table, etc.) to recover single particle gold in placer gold; wherein the amalgamation method is an ancient method for recovering single particle gold, but the method uses Mercury is a volatile substance with a low melting point, which will cause harm to the human body and pollute the production environment. For this reason, the country has explicitly prohibited the use of this method to recover granular gold; the gravity separation method is currently a relatively common method for recovering single granular gold, especially However, the main problems of this technology are: complex equipment configuration, long process flow, high capital investment cost, narrow particle size recovery of granular gold, and recovery of fine-grained monomer gold. The rate is low; due to the low concentration of ore pulp after gravity separation, it is difficult to connect with subsequent operations such as flotation and cyanidation processes

Method used

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  • Collecting method for monomer gold particles
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  • Collecting method for monomer gold particles

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A gold-bearing ore in a mine, the metal minerals in the ore are mainly pyrite, a small amount of chalcopyrite, a very small amount of sphalerite, galena, and occasionally toxic sand, as well as bismuthite, bismuthite, Bismuthite, natural bismuth, bismuth tellurite, bismuth tellurite, tetrahedrite, chalcocite, copper blue, magnetite, limonite, etc.; gangue minerals are mainly quartz and feldspar, followed by silk Mica, muscovite, chlorite, carbonate (calcite, dolomite), kaolin, carbonaceous minerals, etc;

[0021] Table 1 Results of chemical analysis of raw ore

[0022]

[0023] The gold minerals in the ore are natural gold and silver-gold ore, and the silver minerals are natural silver, sulfur-antimony-copper-silver ore, and cadmium-silver ore. The particle size of gold minerals is relatively coarse, with +0.074mm coarse-grained accounting for 2.06%, 0.037mm-0.074mm medium-grained gold accounting for 27.64%, 0.010mm-0.037mm fine-grained gold and -0.010mm fine-graine...

Embodiment 2

[0039] Gold-bearing ore in a mine, the content of metallic minerals in the ore is 13.56%, of which the content of pyrite and pyrrhotite is 4.18%, and the content of chalcopyrite, copper indigo, bornite, tetrahedrite and chalcocite is 1.49%. The content of sphalerite and galena is 0.16%, the content of bismuthite is 0.03%, and the total content of metal sulfide is 5.86%; the metal oxide is composed of magnetite, hematite, limonite, etc., with a content of 7.70%; gangue The main minerals are quartz, garnet, magnesia, followed by albite, orthoclase, plagioclase, biotite, calcite, etc., with a content of 86.44%. The ore process type is medium sulfide primary copper-bearing gold ore. The chemical analysis results of the ore are shown in Table 4.

[0040] Table 4 Results of chemical analysis of raw ore

[0041]

[0042] The gold mineral in the ore is natural gold, and the gold mineral particle size +0.295mm giant gold and +0.074mm coarse gold content are less, 1.35%, 8.62% resp...

Embodiment 3

[0058] The main metal minerals in the ore are pyrite, very little pyrrhotite, chalcopyrite, tetrahedrite, limonite, very little tellurite, bismuth tellurite, lead-bearing natural tellurium, bismuth-bearing natural tellurium , silver tetrahedrite, silver-bearing tetrahedrite, chalcocite, argentite, silver tellurite, hexagonal tellurite, etc.; the gangue minerals in the ore are mainly quartz, feldspar (mainly albite), secondary It is dolomite (mainly iron dolomite), calcite, sericite, apatite, etc. The ore process type is less sulfide gold-bearing ore. The multi-element analysis results of the raw ore are shown in Table 7.

[0059] Table 7 Results of multi-element analysis of raw ore

[0060]

[0061] The gold minerals in the ore are mainly natural gold, accounting for 76.2%, followed by silver-gold ore, accounting for 19.4%, and a small amount of tellurium gold ore and tellurium gold-silver ore; the gold mineral particle size + 0.074mm coarse-grained gold in the ore account...

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Abstract

The invention belongs to the technical field of mine engineering, and particularly relates to a collecting method for monomer gold particles. According to the method, matching processing equipment issimple, adopted chemicals are free of toxicity, the chemicals are mature and easy to obtain, and the investment of capital construction is low; and the recovering particle grade of the gold particlesis wide, the recovering rate of micro-fine particle monomer gold is high, and gold production in situ can be achieved by carrying out simple ashing treatment on obtained flotation gold concentrate (heavy fraction).

Description

technical field [0001] The patent of the invention belongs to the technical field of mining engineering, and specifically relates to a method for collecting single-particle gold. Background technique [0002] my country's gold resources can be divided into two major types, namely rock gold and placer gold, among which placer gold accounts for about 10% of the total reserves, and the single particle gold in the recovery of placer gold has been produced for many years. Select methods (such as Nelson, water jacket, jigging, spiral chute, shaking table, etc.) to recover single particle gold in placer gold; among them, amalgamation method is an ancient method for recovering single particle gold, but the method uses The mercury is a low melting point volatile, which can cause harm to the human body and cause pollution to the production environment. For this reason, the state has explicitly prohibited the use of this method to recover granular gold; gravity separation method is curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/018B03D103/02
CPCB03D1/00B03D1/018B03D2203/025
Inventor 王艳荣张清波张国刚
Owner CHANGCHUN GOLD RES INST
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