Blended concentrate flotation technology

A mixed concentrate and flotation technology, applied in flotation, solid separation, etc., can solve the problems of poor separation effect, different effects, unfavorable mineral processing, etc., achieve fast flotation speed, improve hydrophilicity, and save the amount of chemicals Effect

Inactive Publication Date: 2019-05-10
山西紫金矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods will lead to the dissolution of a small amount of precious metals and cause serious pollution to the environment, which is extremely unfavorable to mineral processing. In today's society that pays attention to environmental protection, the traditional separation process can no longer meet the requirements of the times.
In recent years, various countries have extensively carried out research on cyanide-free and chromium-free or less cyanide-less chromium, as well as research on some related mineral processing equipment, which has made great progress, but the effect is different for different ore samples, especially in higher-grade copper-lead mixed Poor separation in concentrates

Method used

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  • Blended concentrate flotation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A mixed concentrate flotation process, the specific process is: the copper-lead mixed concentrate is sorted by an open-circuit process for one roughing and two beneficiation to obtain lead concentrate and gold concentrate;

[0021] The roughing process is as follows: adding sodium hexametaphosphate, activated carbon, lime, zinc sulfate heptahydrate, ethion and pinitol oil to the copper-lead mixed concentrate, and the concentration of each flotation agent is sodium hexametaphosphate 1000g / t, activated carbon 160g / t, lime 5000g / t, zinc sulfate heptahydrate 800g / t, ethyl disulfide 20g / t, terpineol oil 10g / t, the control roughing time is 3min;

[0022] The beneficiation includes primary beneficiation and secondary beneficiation, the primary beneficiation is: adding concentration of 1200g / t sodium sulfide, 450g / t sodium sulfite and 1500g / t lime to the roughing pulp; the secondary beneficiation is: adding Sodium sulfide with a concentration of 450g / t is added to the primary ...

Embodiment 2

[0024] A mixed concentrate flotation process, the specific process is: the copper-lead mixed concentrate is sorted by an open-circuit process for one roughing and two beneficiation to obtain lead concentrate and gold concentrate;

[0025] The roughing process is as follows: adding sodium hexametaphosphate, activated carbon, lime, zinc sulfate heptahydrate, ethion and pinitol oil to the copper-lead mixed concentrate, and the concentration of each flotation agent is sodium hexametaphosphate 200g / t, 60g / t of activated carbon, 1000g / t of lime, 200g / t of zinc sulfate heptahydrate, 5g / t of ethyl disulfide, 1g / t of pinitol oil, and the control roughing time is 3min;

[0026] The beneficiation includes primary beneficiation and secondary beneficiation. The primary beneficiation is: adding concentration of 500g / t sodium sulfide, 200g / t sodium sulfite and 1000g / t lime to the rough beneficiation pulp; the secondary beneficiation is: adding Sodium sulfide with a concentration of 150g / t i...

Embodiment 3

[0028] A mixed concentrate flotation process, the specific process is: the copper-lead mixed concentrate is sorted by an open-circuit process for one roughing and two beneficiation to obtain lead concentrate and gold concentrate;

[0029] The roughing process is: add sodium hexametaphosphate, activated carbon, lime, zinc sulfate heptahydrate, ethion and pine alcohol to the copper-lead mixed concentrate, and the concentration of each flotation agent is sodium hexametaphosphate 600g / t, activated carbon 100g / t, lime 2500g / t, zinc sulfate heptahydrate 500g / t, ethyl disulfide 15g / t, terpineol oil 5g / t, the control roughing time is 3min;

[0030] The beneficiation includes primary beneficiation and secondary beneficiation. The primary beneficiation is: adding concentration of 1000g / t sodium sulfide, 300g / t sodium sulfite and 1200g / t lime to the roughing pulp; the secondary beneficiation is: adding Sodium sulfide with a concentration of 400g / t is added to the primary beneficiation p...

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Abstract

The invention belongs to the technical field of beneficiation, particularly relates to a blended concentrate flotation technology and aims to provide a blended concentrate flotation separation technology which is a flotation separation method which can effectively increase gold and lead recovery rate, has fewer process steps and saves cost. The technical scheme includes that copper-lead blended concentrate is roughed once and concentrated twice by an open process and separated to obtain lead concentrate and gold lead concentrate. The roughing technology is characterized in that dispersing agents, activated carbon, regulators A, zinc sulfate heptahydrate, ethyl thio carbamate and terpenic oil are added into the copper-lead blended concentrate, and roughing time is controlled to be 3 minutes. Concentration includes primary concentration and secondary concentration, primary concentration includes adding inhibitors A, auxiliary inhibitors and regulators B into rough ore pulp, secondary concentration includes adding inhibitors B into primary ore concentrate pulp to finish the flotation technology, and the primary ore concentrate pulp is separated to obtain the lead concentrate and the gold lead concentrate. The blended concentrate flotation technology is widely applied to the technical field of blended concentrate flotation.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a mixed concentrate flotation process. Background technique [0002] Because there is a large amount of excess flotation reagents in the copper-lead mixed concentrate, which often has a negative impact on the separation effect, so before the mixed concentrate is sorted, the reagents adsorbed on the surface of the ore pulp and minerals must be removed first, that is, copper and lead The separation flotation of mixed concentrate is generally carried out first to remove the drug, and then sorted. Common drug removal methods are divided into mechanical drug removal methods, chemical and physical chemical drug removal methods, and special drug removal methods. In the copper-lead mixed concentrate, the lead minerals are relatively simple, mainly galena, but there are many types of copper minerals, and the buoyancy is different. Therefore, the separation process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D1/00B03D101/02B03D101/06B03D101/00B03D103/02
Inventor 胡耀山兰启城相有兵游华群赵永红
Owner 山西紫金矿业有限公司
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