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Gold mining and processing methods

A processing method and gold mine technology, applied in data processing applications, forecasting, instruments, etc., can solve the problems of difficult control of the economic benefits of gold production enterprises, large fluctuations in international gold prices, and unfavorable long-term stable development of enterprises, so as to ensure that enterprises Economic benefits, less cyanide time, and the effect of preventing the formation of thiocyanate

Active Publication Date: 2017-08-18
SHENYANG KUNYUAN TECH SERVICES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, the international gold price fluctuates greatly, which makes it difficult to control the economic benefits of gold production enterprises. Under this situation, the enterprise's ability to resist risks is poor, which is not conducive to the long-term stable development of enterprises

Method used

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  • Gold mining and processing methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Firstly, the gold ore raw material is obtained by grinding after mining the gold ore, that is, the slurry with a concentration of 35%; the gold ore raw material with a weight of 200kg is processed at a temperature of 180°C and a total pressure of 2600kPa to produce oxidized solid minerals. The pressurized oxidation process can be carried out in an autoclave, and 5% of the oxidized solid minerals (the remaining 95% enters the cyanidation step) are returned to the oxidation container to be mixed with another 200kg of ore slurry, and then heated again at 180°C and Under the total pressure of 2600kPa, process to produce oxidized solid minerals, continue to return 5% of the oxidized solid minerals (the remaining 95% enters the cyanidation step) to the oxidation container and mix with another 200kg of ore slurry, so cycle. Send the remaining 95% oxidized solid minerals into a container with an oxygen pressure of 3500kpa for cyanidation for 45 minutes, and obtain gold ingots t...

Embodiment 2

[0079] First of all, the gold ore raw material obtained by grinding after mining the gold ore, that is, a slurry with a concentration of 39%; the gold ore raw material with a weight of 210kg is processed at a temperature of 150°C and a total pressure of 2500kPa to produce oxidized solid minerals. 3% of the oxidized solid mineral (the remaining 97% enters the cyanidation step) is returned to the oxidation vessel to be mixed with another 210kg of ore slurry, and processed again at 150°C and a total pressure of 2500kPa to produce oxidized Solid minerals, continue to return 3% of the oxidized solid minerals (the remaining 97% enters the cyanidation step) to return to the oxidation container to mix with another 210kg of ore slurry, and so circulate. Send the remaining 97% oxidized solid minerals into a container with an oxygen pressure of 3000kpa for cyanidation for 60 minutes, and obtain gold ingots by desorption and electrolysis of the gold-loaded carbon produced under the above-m...

Embodiment 3

[0082] First, the gold ore raw material obtained by grinding after mining the gold ore, that is, the concentration is 50% ore pulp; the gold ore raw material with a weight of 180kg is processed at a temperature of 200°C and a total pressure of 3500kPa to produce oxidized solid minerals, 10% of this oxidized solid mineral (the remaining 90% enters the cyanidation step) is returned to the oxidation vessel to be mixed with another 180kg of ore slurry, and processed again at 200°C and a total pressure of 3500kPa to produce oxidized Solid minerals, continue to return 10% of the oxidized solid minerals (remaining 90% enters the cyanidation step) to return to the oxidation container to mix with another 180kg of ore slurry, and so circulate. Send the remaining 90% oxidized solid minerals into a container with an oxygen pressure of 2500kpa for cyanidation for 35 minutes, and obtain gold ingots through desorption and electrolysis of the gold-loaded carbon produced under the above-mention...

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Abstract

Provided are a gold mining and processing method. The method comprises steps of: A. After gold ore are mined, grinding the gold ore to obtain a gold mine raw material; B. Processing a gold ore material of weight m at a temperature of 150-200 °C and a total pressure of 2500-3500 kPa to produce an oxidized solid mineral; C. Mixing 3%-10% of the oxidized solid mineral into another gold ore raw material of weight m and processing again at a temperature of 150-200 °C and a total pressure of 2500-3500 kPa to produce an oxidized solid mineral, and repeating the step C; D. Transferring the remaining oxidized solid mineral of steps B and C to a vessel having an oxygen pressure of 3000-6000 kPa for cyanation for 35-60 minutes to recover Au.

Description

technical field [0001] The invention belongs to the field of gold mining, in particular to a gold mining and processing method. Background technique [0002] my country is relatively rich in refractory gold ore resources. Among the proven gold geological reserves, about 1,000 tons are refractory gold ore resources, accounting for about 1 / 4 of the proven reserves. Such resources are widely distributed and distributed in various industries. It is distributed in gold provinces, among which western provinces such as Guizhou, Yunnan, Sichuan, Gansu, Qinghai, Guangxi and Shaanxi occupy a large proportion. Studies at home and abroad believe that carbon plays an important role in the formation of fine-grained gold primary deposits, especially in the formation of gold deposits with sedimentary rocks as host rocks. The Kalin Gold Mine, the Dongbeizhai Gold Mine in Sichuan, and some gold deposits in the Guizhou-Guizhou-Yunnan Golden Triangle all contain relatively high carbonaceous and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B11/08C22B1/00C22B3/18G06Q10/04G06Q50/02
CPCC22B1/00C22B3/18C22B11/08G06Q10/04G06Q50/02Y02P10/20
Inventor 游海滨
Owner SHENYANG KUNYUAN TECH SERVICES LTD