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Beneficiation method for copper-lead sulphide ore

A sulfide ore, copper-lead technology, applied in flotation, solid separation, etc., can solve the problems of low recovery rate of copper and lead, achieve the effect of reducing the slurry potential, increasing the recovery rate, and promoting separation

Active Publication Date: 2018-08-17
广西华洋矿源材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the invention of the present invention is to provide a method for selecting copper-lead sulfide ore in view of the above problems, which is used to solve the problem of low recovery rate of copper and lead in the process of selecting copper-lead sulfide ore by traditional flotation

Method used

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  • Beneficiation method for copper-lead sulphide ore
  • Beneficiation method for copper-lead sulphide ore

Examples

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Effect test

Embodiment 1

[0029] A method for selecting copper-lead sulfide ore, comprising the following steps:

[0030] (1) Raw ore grinding: Finely grind the selected raw ore to obtain an ore slurry with an abrasive grain size of -74 μm, accounting for 76%.

[0031] (2) Copper-lead mixed flotation: the described ore slurry obtained in step (1) is subjected to a rough separation of copper and lead, three times of copper-lead concentration and two times of copper-lead sweeping to obtain copper-lead concentrate and copper-lead tailings . During copper-lead mixed flotation, the mass percent concentration of the pulp is adjusted to 35%, the pH is adjusted to 9, and the copper-lead medium ore produced in the copper-lead mixed flotation process is returned to the previous process in sequence.

[0032] The following reagents are added to the copper and lead roughing process: lime 2000g / t, calcium hypochlorite 600g / t, zinc sulfate 800g / t, sodium sulfite 400g / t, sodium sulfide 300g / t, dimethyl dicarbonate 20...

Embodiment 2

[0040] A method for selecting copper-lead sulfide ore, comprising the following steps:

[0041] (1) Raw ore grinding: Finely grind the selected raw ore to obtain an ore slurry with an abrasive particle size of -74 μm, accounting for 80%.

[0042] (2) Copper-lead mixed flotation: the described ore slurry obtained in step (1) is subjected to a rough separation of copper and lead, three times of copper-lead concentration and two times of copper-lead sweeping to obtain copper-lead concentrate and copper-lead tailings . During copper-lead mixed flotation, the mass percentage concentration of the pulp is adjusted to 45%, the pH is adjusted to 12, and the copper-lead medium ore produced in the copper-lead mixed flotation process is returned to the previous step in sequence.

[0043] The following reagents are added to the copper and lead roughing process: lime 2400g / t, calcium hypochlorite 800g / t, zinc sulfate 1000g / t, sodium sulfite 600g / t, sodium sulfide 600g / t, dimethyl dicarbona...

Embodiment 3

[0051] A method for selecting copper-lead sulfide ore, comprising the following steps:

[0052] (1) Raw ore grinding: Finely grind the selected raw ore to obtain an ore slurry with an abrasive grain size of -74 μm, accounting for 78%.

[0053] (2) Copper-lead mixed flotation: the described ore slurry obtained in step (1) is subjected to a rough separation of copper and lead, three times of copper-lead concentration and two times of copper-lead sweeping to obtain copper-lead concentrate and copper-lead tailings . During copper-lead mixed flotation, the mass percentage concentration of the pulp is adjusted to 40%, the pH is adjusted to 11, and the copper-lead middlings produced in the copper-lead mixed flotation process are returned to the previous process in sequence.

[0054] The following reagents are added to the copper and lead roughing process: lime 2200g / t, calcium hypochlorite 700g / t, zinc sulfate 900g / t, sodium sulfite 500g / t, sodium sulfide 450g / t, dimethyl dicarbonat...

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Abstract

The invention discloses a beneficiation method for copper-lead sulphide ore, and belongs to the technical field of beneficiation. The method comprises raw ore grinding, copper-lead mixing flotation and copper-lead separation. Copper-lead mixing flotation comprises primary copper-lead roughing, tertiary copper-lead fine selecting and secondary copper-lead scavenging. Copper-lead separation comprises primary copper roughing, tertiary copper fine selecting and secondary copper scavenging. Lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulphide, dimethyl dicarbonate, sodium pyrophosphate, sodium citrate, ethionine ester, ethyl thio carbamate, sodium n-butylxanthate, aniline aerofloat, diphenyl amino phosphorodithioic acid and sodium carbonate are added in the copper-lead roughing and copper-lead scavenging processes. Lime, water glass, sodium phosphate starch, carboxymethyl starch, phthalic acid, thiosalicylic acid, ethionine ester and sodium ethylxanthate are added in the copper roughing and copper scavenging processes. The beneficiation method solves the problem that in the process of beneficiation of the copper-lead sulphide ore through a traditional flotation method, the copper and lead recycling rate is low.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for selecting copper-lead sulfide ore. Background technique [0002] The separation of copper and lead is one of the main problems in the beneficiation of complex sulfide ores. The use of cyanide to suppress copper and float lead or dichromate to suppress lead and float copper are two typical copper-lead separation schemes commonly used in production practice. However, both cyanide and dichromate are highly toxic agents, which will cause damage to the environment; in addition, there are disadvantages of low recovery of copper and lead in the selection process of copper-lead sulfide ore by traditional flotation; therefore , it is necessary to provide a method for selecting copper-lead sulfide ore to solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provide a method for selecting copper-lead sulfide ore to...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/06B03D103/02
CPCB03D1/00B03D1/018B03D2201/02B03D2201/06B03D2203/02
Inventor 李文康张宸宇欧西江
Owner 广西华洋矿源材料有限公司
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