A mineral processing method for processing low-grade tin-lead-zinc polymetallic oxide ore

A technology of polymetallic oxidation ore and mineral processing methods, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problem of failing to fully consider the rational link and overall optimization of the entire process of mineral processing and smelting, and failing to achieve low-grade oxidation Efficient development and utilization of lead-zinc mines, lead-zinc recovery rate less than 40%, etc., to achieve the effect of simplifying tin recovery process, easy control, and improving lead-zinc recovery rate

Inactive Publication Date: 2016-08-31
GUANGXI JINSHAN INDIUM & GERMANIUM METALLURGICAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results show that except for the good recovery rate of tin, the actual recovery rate of lead and zinc is less than 40%. It also contains more lead, antimony and silver elements, and the beneficiation index is very poor
[0005] For a long time, most of the processing and treatment of low-grade lead-zinc oxide ore has been through a single method of beneficiation or smelting, which has not fully considered the reasonable link and overall optimization of the whole process of beneficiation and smelting, resulting in separation of beneficiation and smelting. As a result, it has not been able to Realize the efficient development and utilization of low-grade lead-zinc oxide ore

Method used

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  • A mineral processing method for processing low-grade tin-lead-zinc polymetallic oxide ore

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A beneficiation method for processing low-grade tin-lead-zinc polymetallic oxide ore. The raw ore composition of low-grade tin-lead-zinc polymetallic oxide ore: 0.27% tin, 0.88% lead, 0.52% antimony, 76.6g / t silver, zinc 1.06%, indium 38.5g / t, lead oxidation rate 92.45%, zinc oxidation rate 91.30%.

[0031] Above-mentioned raw ore is passed through following processing steps:

[0032] (1) Grinding: After the raw ore is crushed, the ore is ground to -200 mesh, about 70%.

[0033] (2) Grading shaker beneficiation: Divide the grinding product into -0.2mm~+0.074mm, -0.074mm two grain grades, send the raw ore with -0.2mm~+0.074mm grain grade to a section of fine sand shaker for heavy For the beneficiation operation, the ore concentration is about 25%; the raw ore with a particle size of -0.074mm is sent to a section of grooved shaker for gravity separation, and the ore concentration is about 20%; the mixed coarse concentrate of tin, lead, antimony, silver, zinc and indium, ...

Embodiment 2

[0042] A beneficiation method for processing low-grade tin-lead-zinc polymetallic oxide ore, the raw ore composition of low-grade tin-lead-zinc polymetallic oxide ore: 0.54% tin, 1.43% lead, 0.82% antimony, 80.4g / t silver, zinc 4.12%, indium 41.2g / t, lead oxidation rate 93.12%, zinc oxidation rate 92.15%.

[0043] Above-mentioned raw ore is passed through following processing steps:

[0044] (1) Grinding: After the raw ore is crushed, the ore is ground to -200 mesh, about 75%.

[0045] (2) Grading shaker beneficiation: Divide the grinding product into -0.2mm~+0.074mm, -0.074mm two grain grades, send the raw ore with -0.2mm~+0.074mm grain grade to a section of fine sand shaker for heavy For the beneficiation operation, the ore concentration is about 20%; the raw ore with a particle size of -0.074mm is sent to a section of grooved shaker for gravity separation, and the ore concentration is about 15%; the mixed coarse concentrate of tin, lead, antimony, silver, zinc and indium, ...

Embodiment 3

[0054] A beneficiation method for processing low-grade tin-lead-zinc polymetallic oxide ore. The raw ore composition of low-grade tin-lead-zinc polymetallic oxide ore: 0.71% tin, 2.81% lead, 1.87% antimony, 95.6g / t silver, zinc 1.52%, indium 52.2g / t, lead oxidation rate 93.12%, zinc oxidation rate 92.15%.

[0055] Above-mentioned raw ore is passed through following processing steps:

[0056] (1) Grinding: After the raw ore is crushed, the ore is ground to -200 mesh, about 70%.

[0057] (2) Grading shaker beneficiation: Divide the grinding product into -0.2mm~+0.074mm, -0.074mm two grain grades, send the raw ore with -0.2mm~+0.074mm grain grade to a section of fine sand shaker for heavy For the beneficiation operation, the ore concentration is about 20%; the raw ore with a particle size of -0.074mm is sent to a section of grooved shaker for gravity separation, and the ore concentration is about 15%; the mixed coarse concentrate of tin, lead, antimony, silver, zinc and indium, ...

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Abstract

The invention discloses a beneficiation method for processing low-grade tin-lead-zinc polymetallic oxide ore. Firstly, the raw ore is crushed and ball milled; Concentrate, middle ore 1 and tailings 1; tailings 1 is re-selected on a shaking table in the second stage to obtain rough concentrate 2, middle ore 2 and tailings; middle ore 1, rough concentrate 2 and middle ore 2 are re-selected After grinding, return to the primary shaker for re-election. Mix tin, lead, antimony, silver, zinc and indium with coarse concentrate for reverse flotation; the materials in the flotation tank are re-selected by shaking table to obtain qualified tin concentrate, middle ore three and tailings; middle ore three is directly merged into flotation Select the foam product and obtain the mixed concentrate of tin, lead, antimony, silver, zinc and indium. The present invention adopts the combination of the gravity separation process and the reverse flotation process of the gravity-concentration rough ore product, requires fewer types of chemicals, lower dosage, and less environmental pollution, conforms to the national policy of clean production and circular economy, and achieves energy saving, emission reduction, and environmental protection. The purpose of consumption and comprehensive utilization of resources.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for recovering tin, lead, antimony, silver, zinc and indium from low-grade tin-lead-zinc polymetallic oxide ore. Background technique [0002] my country's lead-zinc oxide resources are abundant, of which low-grade refractory lead-zinc oxide resources account for a considerable proportion. For this part of resources, due to the lack of efficient processing technology, they have not yet been developed and utilized on a large scale, resulting in A lot of waste of resources. The low-grade tin-lead-zinc polymetallic oxide ores on the surface of the Dachang mining area in Nandan County, Hechi, Guangxi are rich in reserves, and the ores contain valuable metals such as tin, lead, antimony, silver, zinc, indium, etc. It exists in lead ore, and indium exists in zinc ore. The content of various metals in this ore is low, and the oxidation rate of lead and z...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B5/04B03D1/018
Inventor 王宗贤刘科晓林辉韦平阳永明
Owner GUANGXI JINSHAN INDIUM & GERMANIUM METALLURGICAL CHEM
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