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Converter copper slag deep smelting process

A converter copper and depth technology, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problem of low utilization rate of converter copper slag, and achieve the effect of solving low utilization rate

Inactive Publication Date: 2020-04-03
HUBEI DABEIJIANG ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a deep smelting process of converter copper slag to solve the defect of low utilization rate of converter copper slag

Method used

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  • Converter copper slag deep smelting process

Examples

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Effect test

Embodiment 1

[0018] Converter copper smelting slag is used as raw material to select copper tailings, the proportion of raw material is 4.05, and the content of magnetic substances is 55%. The raw material is released into the vertical stirring mill for stirring, and after stirring, flotation is carried out to separate the copper concentrate, and the remaining flotation The tailings are put into a magnetic field with multi-level magnetic field strength for magnetic separation, and the non-magnetic tailings are separated through a rough and two-fine magnetic separation process, and the rest of the magnetic separation concentrate is subjected to gravity separation using a concentrated cyclone , to obtain a specific gravity of 4.40, a dense medium with a magnetic substance content of 95%, that is, cyclone grit. Dense medium yield was 32%. Dense media can be used for secondary use.

Embodiment 2

[0020] Example 2 adopts the same process flow as Example 1, the difference is that the specific gravity of the raw material is 4.15, the content of magnetic substances is 59%, and the dense medium with a specific gravity of 4.45 and a content of magnetic substances of 95% is obtained, that is, cyclone sand settling. The heavy medium yield was 35%.

[0021] To sum up, in the deep smelting process of converter copper slag, the converter copper slag is subjected to steps such as stirring, flotation, magnetic separation and gravity separation to separate the components with higher iron content in the converter copper slag, which are carried out in the form of dense medium. Secondary utilization solves the defect of low utilization rate of converter copper slag.

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Abstract

The invention relates to the field of non-ferrous metal smelting and provides a converter copper slag deep smelting process, which comprises the steps of stirring, floating, magnetic separation, gravity concentration and the like for converter copper slag, so that components with high iron content in the converter copper slag are separated and are secondarily utilized in a dense medium mode, thereby solving the low utilization rate of the converter copper slag.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal smelting, in particular to a deep smelting process of converter copper slag. Background technique [0002] At present, my country produces more than 8 million tons of copper smelting slag (including more than 4 million tons of iron and nearly 20,000 tons of copper) every year. , fine particle size, various types, complex composition and so on. The slag contains Fe, Cu, Zn, Pb, Co, Ni and other valuable metals and a small amount of precious metals Au, Ag, etc. About 45% of the iron in the converter copper smelting slag exists in the form of ferrosilicate, and changes during the smelting process Its properties make it magnetic, which makes it difficult to use converter copper smelting slag flotation tailings to produce up-to-standard iron ore concentrate. At present, the copper utilization rate of copper smelting slag does not exceed 12%, and the iron utilization rate is less than 1%. Most ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B9/04
CPCB03B7/00B03B9/04
Inventor 安源水邓红飞王能往魏巍李儒仁邓海涛
Owner HUBEI DABEIJIANG ENVIRONMENTAL TECH CO LTD
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