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A kind of beneficiation method of refractory lead-zinc sulfide ore

A beneficiation method and sulfide ore technology, applied in flotation, solid separation, etc., can solve the problems of refractory chemical degradation, environmental impact, etc., and achieve the effect of selective inhibition and promotion of adsorption

Active Publication Date: 2022-01-11
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of medicament has a certain inhibitory effect on galena while inhibiting sphalerite. At the same time, the medicament is difficult to degrade and has an impact on the environment.

Method used

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  • A kind of beneficiation method of refractory lead-zinc sulfide ore
  • A kind of beneficiation method of refractory lead-zinc sulfide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Grind a lead-zinc sulfide ore until the content of -0.074mm accounts for 80%, add 400g / t hydrogen peroxide, 500g / t sodium alginate, 120g / t bis(2-methylpropyl)- Sodium dithiophosphonate, 30g / t No. 2 oil, roughing lead sulfide minerals after pulping to obtain lead sulfide roughing concentrate and roughing tailings; add 400g / t seaweed to the lead sulfide roughing concentrate sodium alginate for the first beneficiation, the first beneficiation of the middle ore returns to roughing, the first beneficiation concentrate is then added with 200g / t sodium alginate for the second beneficiation to obtain lead concentrate, the second Return to the first beneficiation in the secondary beneficiation medium ore; add 100g / t bis(2-methylpropyl)-sodium dithiophosphonate to the lead roughing tailings for the first scavenging, and the first scavenging The concentrated ore returns to the rougher, and the scavenging tailings are added with 50g / t bis(2-methylpropyl)-sodium dithiophosphonate fo...

Embodiment 2

[0038]Grind a lead-zinc sulfide ore until the content of -0.074mm accounts for 75%, add 200g / t hydrogen peroxide, 400g / t sodium alginate, 180g / t bis(2-methylpropyl)- Sodium dithiophosphonate, 30g / t No. 2 oil, roughing lead sulfide minerals after pulping to obtain lead sulfide roughing concentrate and roughing tailings; add 200g / t seaweed to the lead sulfide roughing concentrate sodium alginate for the first beneficiation, the first beneficiation of medium ore returns to roughing, the first beneficiation concentrate is added with 100g / t sodium alginate for the second beneficiation to obtain lead concentrate, the second beneficiation Return to the first beneficiation of the middle ore in the beneficiation; add 90g / t bis(2-methylpropyl)-sodium dithiophosphonate to the lead roughing tailings for the first scavenging, the first scavenging The concentrate is returned to the rougher, and 40g / t of bis(2-methylpropyl)-sodium dithiophosphonate is added to the tailings for the second swe...

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Abstract

The invention provides a beneficiation method for refractory lead-zinc sulfide ore, which belongs to the technical field of beneficiation. In this method, the ore is firstly ground, and then oxidant, polymer inhibitor, collector, and foaming agent are added to adjust the slurry, and then roughed to obtain the lead sulfide roughing concentrate, which is further refined to obtain the lead concentrate, and the lead sulfide roughing tail The zinc sulfide roughing concentrate is obtained by sweeping ore, and the lead sulfide roughing concentrate is further refined to obtain zinc concentrate. This method uses the relationship between the surface oxidation behavior of sulfide minerals and the adsorption behavior of polymer inhibitors, and uses oxidants and vulcanizing agents to regulate the oxidation behavior of the surface of lead-zinc sulfide minerals, promote the adsorption of polymer inhibitors on the surface of specific sulfide minerals, and achieve high Selective inhibition of different sulfide minerals by molecular inhibitors. The invention solves the problems of low separation precision and serious mutual inclusion of lead and zinc in the flotation process of lead-zinc sulfide ore, uses an organic inhibitor at the same time, is easy to degrade, and has less environmental pollution.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a mineral processing method for refractory lead-zinc sulfide ore. Background technique [0002] Mineral resources are an important material basis for national economic development and national defense construction, and are also an indispensable and important support for ensuring social stability and national security in our country. Among non-ferrous metal mineral resources, lead-zinc resources have extremely high development and utilization value. In addition to lead and zinc metals, they are often accompanied by important metals such as gold, silver, copper, sulfur and iron. occupies an extremely important position. my country is a country with a large amount of lead and zinc resources. The reserves of lead and zinc resources account for 20% of the world's total. The output, consumption and export volume of lead and zinc are all in the forefront of the world. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/002B03D1/016B03D1/008B03D1/012B03B1/00B03D103/02B03D101/00B03D101/06B03D101/02
CPCB03D1/002B03D1/016B03D1/008B03D1/012B03B1/00B03D2203/02B03D2201/00B03D2201/06B03D2201/02
Inventor 冯博汪惠惠郭宇涛王涛张良柱钟春晖
Owner JIANGXI UNIV OF SCI & TECH