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Environmentally-friendly gold beneficiation agent and production method thereof

A production method and technology of mineral dressing agent, applied in the field of environment-friendly gold mineral dressing agent, can solve problems such as skin, oral cavity trauma, long leaching time, etc., and achieve the effect of low production cost and shortened production and processing time

Inactive Publication Date: 2013-04-24
熊宝琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant believes that its technical solution has the following defects: 1) Sodium hydroxide and potassium hydroxide are used as pH regulators. As we all know, these two compounds are strongly alkaline and can easily cause trauma to the skin and mouth of construction workers; 2) The applicant used the above-mentioned patent to conduct multiple tests and verifications, and found that using this technical solution to extract gold does not achieve better results; 3) The leaching time of the above-mentioned patented technical solution is relatively long, up to 48 hours

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A kind of environment-friendly type gold beneficiation agent and production method thereof, the steps of the present invention are:

[0019] 1) Preparation of mineral dressing agent: mix yellow blood salt and urea according to the weight ratio of 1:1, put it in the boiler, add glass sodium sulfate during the slow heating process, heat to molten state, continue to add glass sodium sulfate to melt The pH value of the product is controlled at 9.5, and the melting temperature is maintained for 30 minutes, then poured out and cooled to normal temperature to obtain the mineral dressing agent;

[0020] 2) Preparation before recovery: recover precious metals as gold; take 1 ton of gold mineral powder, the mineral powder contains 4 grams of gold per ton, use 250 grams of mineral dressing agent, add 30 kg of lime per ton of mineral powder and mix According to the dosage of mineral dressing agent, 1000 kg of water is added to dissolve it, and the ore powder after adding lime is so...

Embodiment 2

[0023] A kind of environment-friendly type gold beneficiation agent and production method thereof, the steps of the present invention are:

[0024] 1) Preparation of mineral dressing agent: mix yellow blood salt and urea according to the weight ratio of 1:4, put it in the boiler, add glass sodium sulfate during the slow heating process, heat to molten state, continue to add glass sodium sulfate to melt The pH value of the product is controlled at 10, the melting temperature is maintained for 40 minutes, and then poured out and cooled to normal temperature to obtain the mineral dressing agent;

[0025] 2) Preparation before recovery: recover precious metals as gold; take 1 ton of gold mineral powder, the mineral powder contains 4 grams of gold per ton, use 300 grams of mineral dressing agent, add 40 kg of lime per ton of mineral powder and mix According to the dosage of mineral dressing agent, add 1500 kg of water to dissolve, soak or heap the ore powder after adding lime accor...

Embodiment 3

[0027] A kind of environment-friendly type gold beneficiation agent and production method thereof, the steps of the present invention are:

[0028] 1) Preparation of mineral dressing agent: mix yellow blood salt and urea according to the weight ratio of 1:8, put it in the boiler, add glass sodium sulfate during the slow heating process, after heating to molten state, continue to add glass sodium sulfate to melt The pH value of the product is controlled at 10.5, and the melting temperature is maintained for 35 minutes, then poured out and cooled to normal temperature to obtain the mineral dressing agent;

[0029] 2) Preparation before recovery: recover precious metals as gold; take 1 ton of gold mineral powder, the mineral powder contains 4 grams of gold per ton, use 275 grams of mineral dressing agent, add 35 kg of lime per ton of mineral powder and mix According to the dosage of mineral dressing agent, add 1250 kg of water to dissolve, soak or heap the ore powder after adding...

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PUM

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Abstract

The invention relates to an environmentally-friendly gold beneficiation agent and a production method thereof. The production method comprises the following steps: 1) preparing a beneficiation agent; and 2) performing preparation before recovery. The environmentally-friendly gold beneficiation agent provided by the invention has the advantages of 1) environment friendliness; 2) harmlessness to a human body in use; 3) short leaching time; and 4) high gold extracting rate.

Description

technical field [0001] The invention relates to the technical field of an environment-friendly gold beneficiation agent and a production method thereof. Background technique [0002] At present, the commonly used gold beneficiation adopts cyanide method, and more than 85% of the gold in the world is extracted by cyanide method. The production of gold by cyanidation is a relatively mature process. Its advantages are simple process, low production cost, strong adaptability to mineral powder, and high leaching rate; the disadvantages are long leaching time, serious harm to personal safety, agriculture, animal husbandry, and fishery, and environmental pollution. [0003] In order to solve the problem of highly toxic cyanide pollution, for decades, relevant scholars at home and abroad have carried out a lot of experimental research work, trying to find cyanide-free, non-toxic or low-toxic mineral dressing agents, such as the application number "201110195752.4", the patent The p...

Claims

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Application Information

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IPC IPC(8): C22B11/00C22B3/12B03B1/04
CPCY02P10/20
Inventor 熊宝琳
Owner 熊宝琳
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