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Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore

A polymetallic, low-grade technology, used in solid separation, wet separation, chemical instruments and methods, etc., can solve problems such as inability to mine and utilize, and achieve the effects of low pollution, simple equipment and stable indicators.

Active Publication Date: 2013-03-27
有研资源环境技术研究院(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of low-grade copper-lead-zinc complex polymetallic sulfide ore, there is no ready-made process at present, and it cannot be mined and utilized. Therefore, it is necessary to provide a new way for the utilization of this kind of resources

Method used

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  • Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore
  • Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore
  • Separation process for low-grade Cu-Pb-Zn complex multi-metal sulphide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low-grade copper-lead-zinc complex polymetallic sulfide ore in Mongolia in my country. The metal sulfide minerals in the ore are mainly chalcopyrite, galena and sphalerite. The copper-lead-zinc minerals in the ore basically exist in the form of independent minerals. The floatability of copper-lead-zinc minerals in the ore is very similar, which brings great difficulties to the separation of the three minerals. The lead content in the ore is 0.77%, copper is 0.40%, and zinc is 0.73%.

[0024] Utilize the process provided by the present invention ( figure 1 ), the crude ore is ground to -100 mesh for gravity separation, and the crude lead is further purified by flotation using sodium diethylaminodithioformate. The amount of reagent for flotation purification is 20g / t, and the flotation time is 18 minutes; shaker tail The ore (-200 mesh 55%) directly uses O-isopropyl-N-ethylthiocarbamate for copper and zinc mixed floatation and then separated. The flotation slurry concentrat...

Embodiment 2

[0029] The source of the ore is the same as in Example 1.

[0030] Utilize the process provided by the present invention ( figure 1 ), the crude ore is ground to -100 mesh for gravity separation, the crude lead is refined by using sodium diethylaminodithioformate + ammonium dibutyldithiophosphate (weight ratio 1:1) for further flotation purification, flotation The total amount of purified reagent is 20g / t, and the flotation time is 20 minutes; the shaker tailings (-200 mesh 65%) directly use O-isopropyl-N-ethylthiocarbamate+ethylxanthogen Sodium (weight ratio is 1:1) is mixed with copper and zinc and then separated. The concentration of flotation slurry is 30% (weight percentage), the total dosage of reagent is 55g / t, and the flotation time of mixed flotation is 12 minutes. , The test results are shown in Table 1.

[0031] Table 1 Test results of different processes

[0032]

[0033]

[0034] It can be seen from Table 1 that whether it is Example 1 or Example 2, the process provide...

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Abstract

The invention relates to a novel separation process for a low-grade Cu-Pb-Zn complex multi-metal sulphide ore. The process comprises the following steps of: separating Cu-Pb-Zn minerals by adopting a reselection-flotation combined process, namely, reclaiming Pb by utilizing a reselection process firstly, further purifying an obtained Pb concentrate, and then carrying out Cu-Pb separation on reselected tailings by utilizing a floatation process. The invention has the advantages that: the separation of three minerals can be realized basically by utilizing the process; and the process has simple device, less pollution and stable indexes.

Description

Technical field [0001] The invention relates to a new process for the separation of low-grade copper-lead-zinc complex polymetallic sulfide ore. Background technique [0002] At present, the sum of the grades of lead and zinc in the copper-lead-zinc polymetallic sulfide ore that has been produced is above 4% on average, and the grade of associated copper is greater than 0.15%. The beneficiation of copper-lead-zinc polymetallic sulfide ore generally adopts two principle processes: full priority flotation and copper and lead mixed separation and separation. Full priority flotation makes full use of the differences in the natural flotability of copper, lead, and zinc minerals, and achieves the separation between the three by selecting different chemical systems and other operating conditions. The advantage of this method is that the types of chemicals used are small and the process is It is simple, easy to operate and manage, and has strong adaptability to ore. The disadvantage is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03D1/012B03D1/008B03D1/01B03B5/04B03B5/62
Inventor 宋永胜李文娟周桂英温建康
Owner 有研资源环境技术研究院(北京)有限公司