Treatment process for high-carbon high-arsenic gold ores

A treatment process and gold ore technology, which is applied in the field of high-carbon and high-arsenic gold ore treatment process, can solve the problems of poor effect, poor effect of carbide or arsenide, etc., so as to improve crushing efficiency, reduce bondage, and reduce industrial energy. consumption effect

Active Publication Date: 2014-05-07
SHANDONG GOLD GUILAIZHUANG MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixed flora of the prior art mainly oxidizes low-valent sulfur compounds into soluble sulfate; this kind of mixed flora can not only efficiently oxidize Fe 2+ , and can efficiently oxidize sulfide to produce sulfuric acid and sulfate, but the effect on carbide or arsenic is poor; the effect of using the above mixed bacteria to treat high-carbon and high-arsenic gold ore is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The gold ore selected as the material is a high-arsenic carbonaceous gold ore in Guizhou Province. The main metallic minerals are arsenopyrite, pyrite and chalcopyrite, etc. The main non-metallic minerals are mica, followed by quartz, graphite and carbon. The main element analysis results of the ore samples are shown in Table 1.

[0030] Table 1 Analysis of the main elements

[0031] element As Fe Cu C S Au content% 15.1 21.3 0.04 8.2 6.4 0.0039

[0032]A treatment process for high-carbon and high-arsenic gold ore, comprising the steps of:

[0033] The high-carbon and high-arsenic gold ore is crushed by an ore crusher, then sent to a ball mill, and ground to a particle size of 100 mesh ore powder, wherein an activator is added to the ball mill in an amount of one thousandth of the mass of the gold ore; the activation The agent is mixed according to the mass ratio of sodium silicate: carbon tetrachloride is 1:1; add 1% (V / V) hydrogen...

Embodiment 2

[0046] Bacteria effect comparison test:

[0047] The researchers divided the bacterial agents into four groups, specifically the control group 1, the control group 2, and the control group 3, and the experimental group was the embodiment 1 group of the present invention.

[0048] Control group 1: The bacterial agent is prepared from acidophilic Thiobacillus ferrooxidans and acidophilic Thiobacillus acidophilus according to the ratio of 1:1, the dosage of sodium cyanide is 5kg / t, and the rest is the same as in Example 1; the control group 2: The bacterial agent is prepared from Alicyclobacillus, Acidithiobacillus and Leptospira ferrophilum according to the ratio of 2:1:1, the dosage of sodium cyanide is 2kg / t, and the rest are the same as in Example 1; Control 3 : The bacterial agent is prepared from Alicyclobacillus, Acidophilus, Leptospira and Pseudomonas aeruginosa according to the ratio of 3:2:1:1, and the dosage of sodium cyanide is 1kg / t. The method is the same as in Exa...

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Abstract

The invention belongs to the field of metallurgy technology and relates to a treatment process for high-carbon high-arsenic gold ores. The treatment process comprises the steps of breaking and oxidizing, biologically catalyzing and cyaniding. By adopting the treatment process, a carbide and an arsenide can be effectively removed, carbon and arsenic elements are inhibited from covering gold element, therefore, the leaching yield of gold is greatly improved; the treatment process is environmental and free of pollution and is applied to the industrial production.

Description

technical field [0001] The invention belongs to the field of beneficiation of mineral resources, and relates to a treatment process for high-carbon and high-arsenic gold ore. Background technique [0002] In recent years, with the continuous development and utilization of mineral resources, easy-to-handle gold ore resources have become increasingly scarce, while the proportion of low-content ore has increased accordingly, causing conventional treatment methods to face severe challenges in both technical and economic aspects. For the carbon-containing (graphite) and sulfur-containing gold ores mined and produced by many mines, because the ore contains carbon (graphite) or other forms of carbon substances and arsenic compounds, if it is directly cyanided and leached without treatment, the cyanide leached During the process, this carbon (graphite) and arsenic-containing substance has a very strong adsorption activity on the gold-cyanide complex. During the cyanidation process, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/18C22B11/08
CPCY02P10/20
Inventor 唐守营尹国光施兴平唐相锋姚友海何智文李勇池洁李颂杨光武伟政
Owner SHANDONG GOLD GUILAIZHUANG MINING CO LTD
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