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Flotation separation process for mixed copper and lead concentrate

A technology of mixing concentrates and copper and lead, applied in the field of metallurgy, can solve the problems of unreflected metal value, economic loss of resources in the beneficiation plant, complicated smelting process, etc., and achieve the effect of easy operation, simple management and low cost

Active Publication Date: 2015-07-15
青海鸿鑫矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the content is too much, it will not only complicate the smelting process, but also the non-valuation mode of the smelter will not reflect the value of the metal, causing the concentrator to suffer economic losses and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A. Refractory copper-lead mixed concentrate contains 5.42% Cu and 45.99% Pb. The fineness of the raw ore is 80%-0.074mm. The monomer dissociation degrees of copper minerals and lead minerals reach 90% and 94% respectively. Grinding, making the mixed concentrate into a slurry with a concentration of 35%, and using a stirring device to fully stir it evenly;

[0031] B. Use activated carbon to remove the drug from the copper-lead mixed concentrate and then transfer to copper-lead flotation separation operation, use H 2 o 2 300g / t, ferric chlorate 60g / t, sodium thiosulfate 1500g / t is the combination inhibitor of lead minerals, Z-200 is the collector of copper minerals, 730A is the foaming agent, the separation operation flotation process goes through After 1 stage of roughing, 3 stages of refining, and 2 stages of sweeping, the copper rough concentrate contains 14.95% Cu and 33.56% Pb; the lead concentrate contains 65.12% Pb and 1.24% Cu.

[0032] C. Copper rough concent...

Embodiment 2

[0034] A. Refractory copper-lead mixed concentrate contains 7.53% Cu and 36.75% Pb. The raw ore fineness is 60%-0.074mm. The raw ore is ground with a grinding concentration of 50% and a grinding fineness of 85%- 0.074mm, making the monomer dissociation degree of copper minerals and lead minerals reach more than 90%;

[0035] B. The copper-lead concentrate pulp after grinding enters the copper-lead flotation separation operation, using H 2 o 2 250g / t, ferric chlorate 50g / t, sodium thiosulfate 1300g / t is the combined inhibitor of lead minerals, Z-200 is the collector of copper minerals, 24K is the foaming agent, the separation operation flotation process goes through After 1 stage of roughing, 2 stages of beneficiation, and 3 stages of sweeping, the copper rough concentrate contains 18.27% Cu and 20.72% Pb; the lead concentrate contains 55.74% Pb and 1.76% Cu.

[0036] C. Copper rough concentrate is de-drugged with activated carbon and enters the 200G centrifugal force field ...

Embodiment 3

[0038] A. The refractory copper-lead mixed concentrate contains 4.50% Cu and 27.37% Pb. The raw ore fineness is 72%-0.074mm. The raw ore is ground with a grinding concentration of 50% and a grinding fineness of 90%- 0.074mm, making the monomer dissociation degree of copper minerals and lead minerals reach more than 90%;

[0039] B. The copper-lead mixed concentrate slurry after grinding enters the copper-lead flotation separation operation, using H 2 o 2 150g / t, ferric chlorate 40g / t, sodium thiosulfate 1000g / t is the combined inhibitor of lead minerals, Z-200 is the collector of copper minerals, 24K is the foaming agent, the separation operation flotation process goes through After 1 stage of roughing, 2 stages of beneficiation, and 4 stages of sweeping, the copper rough concentrate contains 16.42% Cu and 34.75% Pb; the lead concentrate contains 56.78% Pb and 0.87% Cu.

[0040] C. Copper rough concentrate is de-drugged with activated carbon and enters the 250G centrifugal ...

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PUM

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Abstract

The invention discloses a flotation separation process for mixed copper and lead concentrate. The flotation separation process is characterized by comprising the steps of pretreatment, flotation separation and gravity concentration, and concretely comprises the following flows of performing ore grinding and reagent removal on raw ore; adding a combined inhibitor which consists of the combination of H2O2, ferric chlorate and sodium thiosulfate, a collecting agent and a foaming agent, and performing rough concentration, refining and scavenging to obtain lead concentrate and copper rough concentrate; performing the gravity concentration on the copper rough concentrate in a high centrifugal field after the gravity concentration is performed on the copper rough concentrate to obtain copper concentrate and middling products; returning the middling products to the step of the flotation separation for cycle operation after the ore grinding is performed on the middling products. According to the flotation separation process disclosed by the invention, in allusion to a joint separation process adopted by mixed copper sulfide and lead concentrate, the mixed copper and lead concentrate is effectively and comprehensively utilized and efficiently recovered; the process is simple, and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a flotation separation process of copper-lead mixed concentrate. Background technique [0002] The commonly used copper-lead sulfide mixed concentrate separation method is mainly flotation method. The most studied flotation process structures are: copper-lead mineral priority flotation process, copper-lead mineral mixed flotation tailings-mixed concentrate flotation separation process and Wait for the buoyant process. However, no matter which process is used, the problem of copper-lead separation will be faced, and the difficulty of separation varies according to the nature of the ore. [0003] Normally, whether copper in lead concentrate or lead in copper concentrate, copper or lead is not a harmful factor in lead concentrate or copper concentrate, but copper in lead concentrate or copper in concentrate Lead is regulated. According to the "National Standard for...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03B5/32B03D101/06
Inventor 刘玫华张曙光梁溢强谢锋乔吉波闫森杨林汤优优陈献梅赵文娟冯丽萍
Owner 青海鸿鑫矿业有限公司
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