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Environment-friendly low-toxicity gold ore ore-dressing additive and preparation method thereof

A technology for additives and gold ore, which is applied in the field of environmental protection and low-toxicity gold ore beneficiation additives and its preparation, can solve the problems of resource loss, low recovery rate, waste, etc., and achieves the effect of improving gold recovery rate and high safety

Inactive Publication Date: 2018-02-16
广西南宁晴空万里环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the gold mines in my country are associated with multiple components, and the grade is low. In addition, the effect of mineral processing additives is not good, resulting in low recovery rate, serious resource loss and waste.
At present, the cyanide method is the most popular method for beneficiation, but the cyanide solution is highly toxic and has environmental protection problems, and the leaching effect of cyanide is still not ideal, and the recovery rate of gold is still not high

Method used

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  • Environment-friendly low-toxicity gold ore ore-dressing additive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] An environment-friendly and low-toxicity gold ore dressing additive consists of the following raw materials in parts by weight:

[0026] Potassium ferrocyanide 20 parts, potassium iodide 8 parts, potassium bromide 5 parts, potassium sulfide 5 parts, sodium percarbonate 40 parts, polyacrylamide 5 parts, urea 10 parts, sodium hydroxide 5 parts, sodium tripolyphosphate 10 parts 10 parts, 10 parts of ethoxylated alkyl sodium sulfate, 10 parts of magnetite powder.

[0027] The preparation method of environment-friendly and low-toxicity gold ore dressing additive comprises:

[0028] Step 1. Take the magnet powder in the above parts by weight, heat it to a molten state, add the potassium iodide, potassium bromide and potassium sulfide in the above parts by weight, mix well, and keep it for 2 hours, then cool to 900 °C at a rate of 10 °C / hour Cool down to 600°C, then raise the temperature to 900°C at a rate of 15°C / hour, repeat the operation of cooling at a rate of 10°C / hour a...

Embodiment 2

[0036] An environment-friendly and low-toxicity gold ore dressing additive consists of the following raw materials in parts by weight:

[0037] Potassium ferrocyanide 30 parts, potassium iodide 10 parts, potassium bromide 8 parts, potassium sulfide 8 parts, sodium percarbonate 50 parts, polyacrylamide 10 parts, urea 15 parts, sodium hydroxide 10 parts, sodium tripolyphosphate 15 parts 15 parts, ethoxylated alkyl sodium sulfate 15 parts, magnetite powder 15 parts.

[0038] The preparation method of environment-friendly and low-toxicity gold ore dressing additive comprises:

[0039] Step 1. Take the magnet powder in the above parts by weight, heat it to a molten state, add the potassium iodide, potassium bromide and potassium sulfide in the above parts by weight, mix evenly, and keep it for 3 hours, cool to 900 °C at a rate of 10 °C / hour Cool down to 600°C, then raise the temperature to 900°C at a rate of 15°C / hour, repeat the operation of cooling at a rate of 10°C / hour and hea...

Embodiment 3

[0047] An environment-friendly and low-toxicity gold ore dressing additive consists of the following raw materials in parts by weight:

[0048] Potassium ferrocyanide 25 parts, potassium iodide 9 parts, potassium bromide 6 parts, potassium sulfide 6 parts, sodium percarbonate 45 parts, polyacrylamide 8 parts, urea 12 parts, sodium hydroxide 8 parts, sodium tripolyphosphate 12 parts 12 parts, ethoxylated alkyl sodium sulfate 12 parts, magnetite powder 12 parts.

[0049] The preparation method of environment-friendly and low-toxicity gold ore dressing additive comprises:

[0050]Step 1. Take the magnet powder in the above parts by weight, heat it to a molten state, add the potassium iodide, potassium bromide and potassium sulfide in the above parts by weight, mix well, and keep it for 2 hours, then cool to 900 °C at a rate of 10 °C / hour Cool down to 600°C, then raise the temperature to 900°C at a rate of 15°C / hour, repeat the operation of cooling at a rate of 10°C / hour and heat...

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Abstract

The invention discloses an environment-friendly low-toxicity gold ore-dressing additive. The environment-friendly low-toxicity gold ore-dressing additive is prepared from the following raw materials in parts by weight: 20-30 parts of potassium ferrocyanide, 8-10 parts of potassium iodide, 5-8 parts of potassium bromide, 5-8 parts of potassium sulphide, 40-50 parts of sodium percarbonate, 5-10 parts of polyacrylamide, 10-15 parts of urea, 5-10 parts of sodium hydroxide, 10-15 parts of sodium tripolyphosphate, 10-15 parts of sodium ethoxylated alkyl sulfate and 10-15 parts of magnet powder. Theinvention further provides a preparation method for the environment-friendly low-toxicity gold ore-dressing additive. The environment-friendly low-toxicity gold ore-dressing additive does not includevirulent cyanide, adopts non-toxicity and low-toxicity chemical reagents, is relatively environment-friendly, and is high in safety.

Description

technical field [0001] The invention relates to the field of gold ore beneficiation. More specifically, the invention relates to an environment-friendly and low-toxicity gold ore beneficiation additive and a preparation method thereof. Background technique [0002] With the continuous improvement of Chinese living standards, the demand for gold is also increasing. However, most of the gold mines in my country are associated with multiple components, and the grade is low. In addition, the effect of mineral processing additives is not good, resulting in low recovery rate, serious resource loss and waste. At present, the cyanide method is the most popular method for beneficiation, but the cyanide solution is highly toxic and has environmental protection problems, and the leaching effect of cyanide is still not ideal, and the gold recovery rate is still not high. Therefore, it is urgent to design a new beneficiation additive. Contents of the invention [0003] An object of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B11/00
CPCC22B11/00
Inventor 刘营营
Owner 广西南宁晴空万里环保科技有限公司
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