Novel environment-friendly gold extracting agent and preparation method thereof

A gold extraction agent and environmental protection technology, which is applied in the fields of non-ferrous metals, beneficiation, tailings, metallurgy, and mining. It can solve the problems of high toxicity, low toxicity, and unfavorable environmental protection, and achieves high complexing capacity and convenient operation. , the effect of large complexation stability constant

Active Publication Date: 2015-01-07
王荣增
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a new type of environment-friendly gold extraction agent, which is beneficial to environmental protection and is suitable for low-grade micro-series. The recovery and utilization of gold-bearing oxide semi-oxidized ore, sulfide ore semi-sulfide ore, tailings and tailings, turning waste into treasure, seeking gold from waste, and creating economic benefits for the country to save resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The environment-friendly gold extracting agent of the present embodiment is made from the raw materials of following parts by weight: 15 parts of sodium carbonate, 13 parts of sodium chloride, cosolvent 13 Parts, 35 parts of sodium ethylenediamine tetramethylene phosphate, 21 parts of sodium citrate, 25 parts of sodium sulfide, and 23 parts of sodium hydroxide.

[0025] The co-solvent is made of the following raw materials in weight ratio: Glauber's salt 41%, sodium bicarbonate 11%, hydrogen peroxide 35%, agar powder 5%.

[0026] The preparation method is as follows: put sodium carbonate, sodium chloride, co-solvent, sodium citrate, and sodium ethylenediaminetetramethylene phosphate into a stirring reactor according to the formula ratio, stir at room temperature for 1 to 2 hours, and then add sodium sulfide 1. Sodium hydroxide is put into the stirred reaction kettle, stirred at normal temperature for 1 hour, and the new environment-friendly gold extracting agent can be ...

Embodiment 2

[0028] The environment-friendly gold extracting agent of the present embodiment is made from the raw materials of following parts by weight: 16 parts of sodium carbonate, 11 parts of sodium chloride, cosolvent 11 Parts, sodium ethylenediaminetetramethylene phosphate 34 Parts, 28 parts of sodium citrate, 29 parts of sodium sulfide, 25 parts of sodium hydroxide.

[0029] The co-solvent is made of the following raw materials in weight ratio: Glauber's salt 41%, sodium bicarbonate 11%, hydrogen peroxide 35%, agar powder 5%.

[0030] The preparation method is as follows: put sodium carbonate, sodium chloride, co-solvent, sodium citrate, and sodium ethylenediaminetetramethylene phosphate into a stirring reactor according to the formula ratio, stir at room temperature for 1 to 2 hours, and then add sodium sulfide 1. Sodium hydroxide is put into the stirred reaction kettle, stirred at normal temperature for 1 hour, and the new environment-friendly gold extracting agent can be made by...

Embodiment 3

[0032] The environment-friendly gold extracting agent of the present embodiment is made from the raw materials of following parts by weight: 18 parts of sodium carbonate, 13 parts of sodium chloride, cosolvent 21 Parts, sodium ethylenediaminetetramethylene phosphate 33 Parts, 30 parts of sodium citrate, 30 parts of sodium sulfide, 29 parts of sodium hydroxide.

[0033] The co-solvent is made of the following raw materials in weight ratio: Glauber's salt 41%, sodium bicarbonate 11%, hydrogen peroxide 35%, agar powder 5%.

[0034] The preparation method is as follows: put sodium carbonate, sodium chloride, co-solvent, sodium citrate, and sodium ethylenediaminetetramethylene phosphate into a stirring reactor according to the formula ratio, stir at room temperature for 1 to 2 hours, and then add sodium sulfide 1. Sodium hydroxide is put into the stirred reaction kettle, stirred at normal temperature for 1 hour, and the new environment-friendly gold extracting agent can be made by...

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PUM

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Abstract

The invention discloses a novel environment-friendly gold extracting agent and a preparation method thereof. The gold extracting agent is prepared from the following raw materials in parts by weight: 15-25 parts of sodium carbonate, 11-15 parts of sodium chloride, 11-21 parts of a cosolvent, 31-35 parts of ethylene diamine tetramethylidene phosphate sodium, 21-35 parts of sodium citrate, 21-31 parts of sodium sulfide and 23-35 parts of sodium hydroxide. By adopting a product formula, the problem of environmental protection of gold mines can be solved, and the problem of environmental pollution of the mines also can be solved; the product has a good reaction effect when being applied to part of the gold mines, and is non-toxic and harmless; and the novel environment-friendly gold extracting agent disclosed by the invention cannot cause harm to the environment, is suitable for production processes of a dripping method, a heap leaching method, a pool leaching method and a carbon-in-pulp method, is suitable for recycling a micro series of low-grade gold-containing oxidized ores and semi-oxidized ores, sulfide ores and semi-sulfide ores and tailings, can be used for turning waste into treasure and extracting gold from the waste, and can create huge economic benefits and contributions to resource conservation of the country.

Description

technical field [0001] The invention belongs to the fields of non-ferrous metals, metallurgy, mining, ore dressing and tailings, and in particular relates to a novel environment-friendly gold extraction agent. Background technique [0002] At present, the production of gold by cyanide is a relatively mature production process. Its advantages are simple process, low production cost and high leaching rate. , The fishery is seriously harmful and brings serious pollution to the environment of the mine production area. Therefore, the use of sodium cyanide to leaching gold is extremely harmful. my country is one of the largest gold production countries in the world, and it is also a country with a relatively fast development of gold production. Like other countries, my country is facing severe challenges of resources and environmental protection in the development of gold production. The Chinese government attaches great importance to the pollution of mercury and cyanide in gol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B11/00
Inventor 王荣增荣科全荣益王钇王平范晓东王基敏刘辉王烁富
Owner 王荣增
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