Method for selecting zinc oxide from muddy zinc oxide fine ore grains

A technology of zinc oxide ore and zinc oxide, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems such as waste, environmental water pollution, resource backlog, etc., and achieve improved recovery rate, easy operation, and acquisition method simple effect

Active Publication Date: 2012-05-02
兰坪县矿产三废回收厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially after many years of mining, a large amount of low-grade lead-zinc oxide ore with iron mud has accumulated, which not only causes a backlog and waste of resources, but also causes environmental pollution, especially water pollution, due to long-term wind, sun, and rain. And it is a potential factor leading to natural disasters such as mudslides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A. Take clayey mud zinc oxide ore, the raw ore contains 8.52% zinc, after crushing, the ore is ground and classified into a pulp with a particle size of -0.18mm accounting for 70%, and the pulp is then classified to obtain a particle size of -0.18mm ~+0.125mm The ore pulp and the -0.125mm particle size pulp; the obtained -0.18mm ~+0.125mm is sorted by conventional shaking table for zinc oxide;

[0017] B. After pulping the -0.125mm particle size pulp obtained in step A to a mass concentration of 14%, add commercially available sodium carbonate in an amount of 500g / ton (raw ore) to the pulp, stir for 5 minutes, and press 1kg In the amount of 100g / ton (raw ore), add commercially available sodium hydroxide and stir for 6 minutes, add commercially available hydrolyzed anion PAM in an amount of 100g / ton (raw ore), and stir for 5 minutes to obtain ore pulp;

[0018] C. The pulp obtained in step B is sent to a conventional shaking table pulp distributor for shaking table se...

Embodiment 2

[0020] A. Take iron mud zinc oxide ore, the original ore contains 7.68% zinc, after crushing, the ore is ground and classified into a pulp with a particle size of -0.18mm, accounting for 70%, and the pulp is then classified to obtain a particle size of -0.18mm ~+0.125mm The ore pulp and the -0.125mm particle size pulp; the obtained -0.18mm ~+0.125mm is sorted by conventional shaking table for zinc oxide;

[0021] B. After the pulp of -0.125mm grain size obtained in step A is adjusted to a mass concentration of 17%, in the pulp, add commercially available sodium hydroxide in an amount of 600g / ton (raw ore), stir for 6 minutes, press Add commercially available calcium hydroxide in an amount of 2kg / ton (raw ore), and stir for 5 minutes; add microparticles of commercially available hydrolyzed starch in an amount of 400g / ton (raw ore), and stir for 6 minutes to obtain a pulp;

[0022] C. The pulp obtained in step B is sent to a conventional shaking table pulp distributor for sha...

Embodiment 3

[0024] A. Carbonate zinc oxide ore is taken, the raw ore contains 6.93% zinc, after crushing, the ore is ground and classified into a pulp with a particle size of -0.18mm, which accounts for 70% of the pulp, and the pulp is then classified to obtain a pulp with a particle size of -0.18mm ~+0.125mm Ore pulp and -0.125mm particle size pulp; the resulting -0.18mm ~+0.125mm is separated into zinc oxide by conventional shaking table;

[0025] B. After pulping the -0.125mm particle size pulp obtained in step A to a mass concentration of 20%, add commercially available sodium carbonate in an amount of 700g / ton (raw ore) to the pulp, stir for 6 minutes, and press 1.2kg / ton (raw ore) amount, add commercially available sodium hydroxide, stir for 6 minutes, press the amount of 200g / ton (raw ore), add commercially available hydrolyzed anion PAM, stir for 7 minutes to obtain ore slurry;

[0026] C. The pulp obtained in step B is sent to a conventional shaking table pulp distributor fo...

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Abstract

The invention provides a method for selecting zinc oxide from muddy zinc oxide fine ore grains. Muddy zinc oxide ore is ground into ore pulp after being crushed and then is classified, then the ore pulp with size fraction smaller than 0.125mm is mixed, ore pulp gangue dispersing agent, siliceous gangue activating agent and granular zinc oxide ore agglomeration agent are respectively added in the ore pulp and then are stirred to obtain ore pulp, the ore pulp is conveyed to an ore distributor of a conventional table concentrator to realize table concentrator sorting, and then zinc oxide fine ore with the granularity smaller than 0.125mm is sorted. The method is simple and easy in operation, equipment includes a conventional crusher, an ore grinder and the table concentrator and investment is saved, particularly, zinc oxide recovery rate can be effectively improved, problems that low-grade lead-zinc oxide ore is difficult to be sorted in the prior art and then is accumulated, resources are waste and environments and water are polluted are solved, resources are recycled, and the method brings rich economical benefit for mine enterprises.

Description

[0001] technical field [0002] The invention relates to a mineral processing method, in particular to a method for separating zinc oxide from argillaceous zinc oxide ore fine particles, and belongs to the technical field of nonferrous metal mineral processing. Background technique [0003] Low-grade lead-zinc oxide ore has the characteristics of small difference in specific gravity between zinc minerals and gangue, and its recovery rate is low when it is separated by conventional gravity separation. At present, it is impossible to select fine-grained minerals of argillaceous zinc oxide in my country by conventional techniques. After the argillaceous zinc oxide ore is ground, its -0.125mm fine-grained minerals will account for 28-32% of the total ore. Therefore, the development and recovery of this fine-grained zinc oxide ore will be beneficial to the integration of my country's mineral resources. , It is of great significance to improve the economic benefits of mining enter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/04B03B1/04
Inventor 杨佳定陈铁
Owner 兰坪县矿产三废回收厂
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