Separation method of copper-lead sulfide minerals

A beneficiation method, copper and lead technology, applied in solid separation, flotation and other directions, can solve the problems of unsuitable large-scale promotion, high production cost, environmental pollution, etc.

Active Publication Date: 2013-02-13
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above prior art are;
[0004] Although dichromate and cyanide can effectively realize the flotation separation of copper and lead sulfide minerals, they will cause serious pollution to the environm

Method used

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  • Separation method of copper-lead sulfide minerals
  • Separation method of copper-lead sulfide minerals
  • Separation method of copper-lead sulfide minerals

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example one

[0021] The grade of copper-lead sulfide ore is Cu 0.35%, Pb1.35%, and the ore is ground to -74μm72%. The slurry is added to the flotation tank for the copper-lead mixed flotation operation, and the copper-lead mixed roughing operation is added with lime 2Kg / ton. Raw ore, Z-200# 30g / ton raw ore, Dingxanthate 80g / ton raw ore, 25# black powder 40g / ton raw ore, flotation obtains copper-lead mixed coarse concentrate; copper-lead mixed flotation is added to Z-200# 15g / ton raw ore, 40g / ton raw ore of butyl xanthate, 20g / ton raw ore of 25# black powder, flotation to obtain copper-lead scavenging concentrate one; copper-lead mixed flotation separation two adding Z-200#7g / ton raw ore, 20g / ton raw ore of Dingxanthophyll, 10g / ton raw ore of 25# black powder, flotation to obtain copper-lead mixed sweep concentrate II.

[0022] Copper-lead mixed coarse concentrate selection one adds lime 300g / ton raw ore, zinc sulfate 220g / ton raw ore, selection two adds lime 220g / ton raw o...

Example Embodiment

[0030] Example two

[0031] The grade of copper-lead sulfide ore is Cu0.98%, Pb3.94%, and the ore is ground to -74μm75%. The slurry is added to the flotation tank for the copper-lead mixed flotation operation, and the copper-lead mixed roughing operation is added with lime 1.5Kg / Ton of raw ore, Z-200#30g / ton of raw ore, 120g / ton of raw ore, 25# black powder 35g / ton of raw ore, flotation to obtain copper-lead mixed coarse concentrate; copper-lead mixed scavenging and adding Z-200 #15g / ton raw ore, butyl xanthate 55g / ton raw ore, 25# black powder 20g / ton raw ore, flotation obtains copper-lead scavenging concentrate one; copper-lead mixed scavenging two is added to Z-200#10g / ton raw ore, Dingxanthose 35g / ton raw ore, 25# black powder 10g / ton raw ore, flotation obtains copper-lead mixed scavenging concentrate II.

[0032] Copper-lead mixed coarse concentrate is selected one by adding lime 290g / ton of raw ore, zinc sulfate 180g / ton of raw ore, selected two is added with lime 170g / ton ...

Example Embodiment

[0040] Example three

[0041] The grade of copper-lead sulfide ore is Cu0.91%, Pb1.03%, and the ore is ground to -74μm75%. The slurry is added to the flotation tank for copper-lead mixed flotation operation, and the copper-lead mixed roughing operation is added with lime 3.2Kg / Ton of raw ore, Z-200#33g / ton of raw ore, 60g / ton of raw ore, 25# black powder 30g / ton of raw ore, flotation to obtain copper-lead mixed coarse concentrate; copper-lead mixed flotation, adding Z- 200#10g / ton raw ore, butyl xanthate 20g / ton raw ore, 25# black powder 10g / ton raw ore, flotation obtains copper-lead scavenging concentrate one; copper-lead mixed flotation scavenging two is added to Z-200#7g / ton Raw ore, 10g / ton raw ore of butyl xanthate, 5g / ton raw ore of 25# black powder, flotation to obtain copper-lead mixed scavenging concentrate II.

[0042] Copper-lead mixed coarse concentrate is selected by adding lime 370g / ton of raw ore and zinc sulfate 260 / ton; for selected second, adding lime 180g / ton o...

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Abstract

The invention discloses a separation method of copper-lead sulfide minerals and belongs to the field of mineral separation. According to the method, the copper-lead sulfide minerals are used as raw materials. The separation method includes steps that raw ores are milled; copper and lead mixed rough concentrate is obtained by means of a flotation method, lime and zinc sulfate which serve as inhibitors are added to the copper and lead mixed rough concentrate for concentration to obtain copper and lead mixed concentrate, CMLM (starch phosphate: sodium carboxymethyl starch=(2-4):1) is added to the copper and lead mixed concentrate, the CMLM is used as an inhibitor of lead minerals, and Z-200# is used as a flotation collecting agent of copper minerals for performing copper-lead separation. The CMLM which is used as an inhibitor of lead sulfide minerals has the advantages of being good in selectivity, high in inhibiting ability, small in using amount and convenient to add, activated carbon reagent removal or mechanical concentration reagent removal is not required during the process of copper-lead separation, the operating procedure is simple, problems of environmental pollution brought by traditional dichromate methods and cyanide methods and high costs are solved, and the floating separation method for separating the copper-lead sulfide minerals is simple, convenient, efficient and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for separating copper-lead sulfide minerals. Background technique [0002] At present, there are two schemes for the separation of copper and lead: one is floating copper to suppress lead, and the other is floating lead to suppress copper. Commonly used methods are (1) dichromate method. Flotation of copper sulfide minerals by inhibiting galena with dichromate to achieve separation of copper and lead. (2) Cyanide method. Cyanide has a strong inhibitory effect on chalcopyrite, but almost no inhibitory effect on galena. Using this method, copper flotation and lead can be inhibited, and better results can be obtained. (3) Heating method. The method is to use steam to heat the copper-lead mixed concentrate to about 60°C. In the acidic or neutral slurry, the collector on the surface of the galena is desorbed, and the surface is oxidized and hydrophilic, while t...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/016B03D101/02B03D101/06
Inventor 陈代雄李晓东杨建文董艳红祁忠旭薛伟胡波曾惠明庞威朱雅卓毛竞
Owner HUNAN RES INST FOR NONFERROUS METALS
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