Method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals

A technology of valuable metals and sulfide ores, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems such as poor adaptability, difficult operation, and adverse environmental effects

Inactive Publication Date: 2015-09-09
四川有色金砂选矿药剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Full flotation process There are many types of flotation reagents added, and some flotation reagents have certain toxic and side effects, which will have certain adverse effects on the environment
[0006] (2) Gravity separation-flotation process The tailings produced by the gravity separation process need to be further concentrated to meet the subsequent flotation process, which is difficult to operate
[0007] (3) The adaptability of the process flow to ore resources The existing separation technology has poor adaptability to the processing of extremely low-grade copper-lead-zinc polymetallic sulfide ore resources, and the process flow indicators are not good

Method used

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  • Method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals
  • Method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals
  • Method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Using copper-lead-zinc-iron polymetallic sulfide ore from Hanyuan, Sichuan as raw materials, the raw ore copper grade is 0.15%, lead grade is 1.08%, zinc grade is 0.88%, and iron grade is 22.64%.

[0031] Such as figure 1 As shown, a method for processing low-grade copper-lead-zinc-iron polymetallic sulfide ore to extract valuable metals includes the following steps:

[0032] S1. Ore crushing and first-stage grinding stage: use a crusher to crush the raw material low-grade copper-lead-zinc-iron polymetallic sulfide ore to a particle size of 5mm or less, and then use a rod mill to grind the sample with a particle size of 5mm or less. The proportion of the mineral material with diameter ≤0.154mm to the total mineral material weight is 85%;

[0033] S2, spiral chute reselection and preselection stage: the mineral material obtained in step S1 is preselected by spiral chute reselection to obtain a mixed concentrate of copper, lead, zinc and iron;

[0034] S3. Drying stage of the cop...

Embodiment 2

[0045] Using copper-lead-zinc-iron polymetallic sulfide ore from Lanping, Yunnan as raw materials, the raw ore copper grade is 0.18%, lead grade is 0.86%, zinc grade is 1.15%, and iron grade is 23.66%.

[0046] Such as figure 1 As shown, a method for processing low-grade copper-lead-zinc-iron polymetallic sulfide ore to extract valuable metals includes the following steps:

[0047] S1. Ore crushing and one-stage grinding stage: use a crusher to crush the low-grade copper-lead-zinc-iron polymetallic sulfide ore ore to a particle size below 5mm, and then use a rod mill to grind the sample with a particle size below 5mm to a particle size The proportion of the mineral material with diameter ≤0.154mm to the total mineral material weight is 80%;

[0048] S2, spiral chute reselection and preselection stage: the mineral material obtained in step S1 is preselected by spiral chute reselection to obtain a mixed concentrate of copper, lead, zinc and iron;

[0049] S3. Drying stage of the copper-...

Embodiment 3

[0060] The copper-lead-zinc-iron polymetallic sulfide ore in the Xishuangbanna area of ​​Yunnan is used as raw material. The raw ore copper grade is 0.22%, lead grade is 1.05%, zinc grade is 1.24%, and iron grade is 19.65%.

[0061] Such as figure 1 As shown, a method for processing low-grade copper-lead-zinc-iron polymetallic sulfide ore to extract valuable metals includes the following steps:

[0062] S1. Ore crushing and one-stage grinding stage: use a crusher to crush the low-grade copper-lead-zinc-iron polymetallic sulfide ore ore to a particle size below 5mm, and then use a rod mill to grind the sample with a particle size below 5mm to a particle size The proportion of the mineral material with diameter ≤0.154mm to the total mineral material weight is 90%;

[0063] S2, spiral chute reselection and preselection stage: the mineral material obtained in step S1 is preselected by spiral chute reselection to obtain a mixed concentrate of copper, lead, zinc and iron;

[0064] S3. Dryin...

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Abstract

The invention discloses a method for treating low-grade copper-lead-zinc-iron multi-metal sulfide ores to extract valuable metals. The method comprises the following steps: S1, a stage of crushing, and carrying out one-stage ore milling on ores; S2, a stage of reselecting and pre-selecting a spiral chute; S3, a stage of drying copper-lead-zinc-iron mixed concentrated ore; S4, a stage of carrying out sulfated roasting; S5, a stage of carrying out second-stage ore milling; S6, a stage of carrying out a wet-process leaching; S7, a stage of carrying out solid-liquid separation; S8, adopting an electro-deposition process to treat leaching liquor to obtain a cathode copper product, and evaporating and catalyzing the residual liquid to obtain a zinc sulfate product; S9, carrying out strong magnetic separation on leaching residue to obtain iron concentrated ore, wherein a non-magnetic product adopts a shaking bed to recycle lead to obtain lead concentrated ore. The method has the beneficial effects that: comprehensive utilization for valuable metals copper, lead, zinc and iron in the low-grade copper-lead-zinc-iron multi-metal sulfide ore source can be realized and various products are obtained; a physical mineral separation technical means is adopted to carry out pre-discarding for tailings, and additional medicament is not added in the mineral separation process.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for extracting valuable metals from low-grade copper-lead-zinc-iron-iron polymetallic sulfide ores. Background technique [0002] Copper, lead, and zinc are traditional types of non-ferrous metals. The demand for non-ferrous metal resources at home and abroad is still on the rise. The beneficiation of copper-lead-zinc polymetallic sulfide ore generally adopts flotation process, but with the intensification of the development of ore resources, the resources of easy-to-select rich ore are facing shortage, and the difficulty of ore sorting is increasing. The traditional flotation process technology can no longer meet the requirements Demand for the development of low-grade copper-lead-zinc polymetallic sulfide ore resources. [0003] At present, the existing known technologies are: (1) the invention patent of "a mineral processing method for separating copper-le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 肖军辉施哲陈金花汤小军官长平徐国栋周怡玫邓星星李辉张平杨云
Owner 四川有色金砂选矿药剂有限公司
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