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Method of extracting valuable element from waste water and waste slag

A technology for valuable elements and waste slag, which is applied in the field of extracting valuable elements, can solve the problems of shortage of sulfuric acid raw materials, tailings stockpiling and pollution of the environment, and achieve the effect of highlighting substantive features, simple process equipment configuration, and eliminating pollution

Active Publication Date: 2007-11-28
SHANDONG HUMON SMELTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for extracting valuable elements by using waste water and waste residue, which mainly solves the problems of shortage of sulfuric acid raw materials and environmental pollution caused by tailings stockpiling.

Method used

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  • Method of extracting valuable element from waste water and waste slag
  • Method of extracting valuable element from waste water and waste slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Example 1, under laboratory conditions, conventional cyanide tailings are mixed with acidic waste water, the pH value is adjusted to 5-6, the influence of silicic acid skeleton and cyanide complex hydrophilic film is eliminated, and the foaming agent and The performance of collectors and minerals can reduce the impact of organic matter such as defoamers; then enter the stirring tank before flotation, add protective alkali to neutralize and precipitate impurity ions, and make the interaction between flotation agents, which is beneficial to increase the value of valuable elements. The recovery rate; add flotation agents, flotation agents are flotation oil, xanthate, black medicine, first add flotation oil, xanthate, black medicine in the stirring tank for a rough selection, then add flotation oil, xanthate Carry out two sweeps, and finally carry out a beneficiation to produce a concentrate; the flotation concentrate is roasted in two or one stages, and the flue gas is puri...

Embodiment 2

[0009] Example 2, under laboratory conditions, the cyanide tailings after bacterial oxidation were mixed with acidic wastewater, and the pH value was adjusted to 5-6 to eliminate the influence of the silicic acid skeleton and the hydrophilic film of the cyanide complex, and improve foaming The performance of the interaction between agent and collector and minerals, reducing the impact of organic matter such as defoamers; and then entering the stirring tank before flotation, adding protective alkali to neutralize the precipitated impurity ions, so that the interaction between flotation agents is beneficial to improve the efficiency. The recovery rate of valence elements; add flotation agents, flotation agents are flotation oil, xanthate, and black medicine, first add flotation oil, xanthate, and black medicine to the stirring tank for a rough selection, then add flotation oil, The xanthate is swept and separated twice, and the concentrated ore is produced by a final selection; t...

Embodiment 3

[0011] Example 3, under industrial test conditions, conventional cyanide tailings are mixed with acidic waste water, the pH value is adjusted to 5-6, the influence of silicic acid skeleton and cyanide complex hydrophilic film is eliminated, and the foaming agent is improved and collectors and minerals to reduce the impact of organic matter such as defoamers; then enter the stirring tank before flotation, add protective alkali to neutralize the precipitated impurity ions, and make the flotation agents interact, which is beneficial to improve the value The recovery rate of elements; adding flotation reagents, the flotation reagents are flotation oil, xanthate and black medicine, first add flotation oil, xanthate and black medicine to the stirring tank for a rough selection, then add flotation oil, yellow medicine Sweeping is carried out twice, and finally a concentration is carried out to produce a concentrate; the flotation concentrate is subjected to two or one stages of roasti...

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Abstract

A method to extract charge elements with drain water and waster slag, It contains the following technology steps: a To acidulate; the cyanide tailings and blended with acid drain water. b To add protection alkali; To enter the agitated tank before floatation, and add protection alkali to neutralize and precipitate the ion of impurity. C To recover by flotation; the beneficiated ore will be produced out after a rude choice, two scavengings, and a choice. d To floatate the smelting end product of beneficiated ore; to produce out end product: vitriol, copper, bullion bar, sycee, and iron ore concentrate, the remained tailings will be sell to produce brick, the arrangement of the technology equipment is simple, and the operation is stable and easy to control, It' s adaptability to the cyanide tailings produced by different technology is very high, It not only eliminates the pollution to environment caused by the pile-up of tailings, but also further accelerates the reclaim of the useful element, and at the same time, it saves a part of cost spend in dealing with the drain water.

Description

Technical field: [0001] The invention relates to the technical field of smelting, in particular to a method for extracting valuable elements from waste water and residue. Background technique: [0002] At present, with the expansion of the sulfuric acid market and the increasing consumption of resources, the supply of existing raw materials is becoming more and more tense. In addition, the cyanide tailings produced by cyanide gold extraction in different treatment processes cannot be used due to the low content of valuable elements. , Stacking brings certain pollution to the environment. Invention content: [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a method for extracting valuable elements by using waste water and waste residue, which mainly solves the problems of shortage of sulfuric acid raw materials and environmental pollution caused by tailings stockpiling. [0004] In order to achieve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B11/00B03B5/28C22B1/02C22B15/00C25C1/12B03C1/02C01B17/74C04B18/14
CPCY02P10/20Y02W30/91
Inventor 王信恩曲胜利曲华东王雄斌马少卫曲晓明王元张会健
Owner SHANDONG HUMON SMELTING
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