Comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc

A recovery method and multi-metal technology, applied in the direction of sulfur preparation/purification, flotation, solid separation, etc., can solve the problems of increasing the difficulty of processing and production costs, unfavorable sulfur recovery and environmental protection, and unsuitable for long-distance transportation. The effect of compact and smooth process structure, reduced beneficiation cost and simplified pharmaceutical system

Inactive Publication Date: 2010-02-10
WESTERN MINING CO LTD
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Problems solved by technology

When the mixed concentrate is treated with one-stage oxygen pressure leaching process, a large amount of elements such as iron and arsenic in the concentrate are also leached, and the concentration of residual acid in the leach solution is high, which increases the difficulty of subsequent processing and production costs
The roasting process will produce a large amou...

Method used

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  • Comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc
  • Comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc
  • Comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc

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Embodiment 1

[0024] The percentages described in the examples are all mass percentages.

[0025] The typical chemical composition of this sulfide ore is shown in Table 1:

[0026] Table 1 Chemical composition of raw ore

[0027] Element

Cu

Pb

Zn

Ag*

Au*

Content%

0.54

4.11

6.44

136

0.26

Element

As

Sb

CD

Fe

S

Content%

0.068

0.4

0.034

5.50

10.08

[0028] *The unit is g / t.

[0029] According to X-ray diffraction analysis, the main metal minerals in this mineral are sphalerite, galena, tetrahedrite (mainly Sb-rich tetrahedrite), pyrite, chalcopyrite, and tetrahedrite. The relative content of ore is obviously more than that of chalcopyrite, and most of Cu, Ag and As are contained in it.

[0030] Step 1: Perform mixed flotation on the mined complex copper-lead-zinc-silver polymetallic sulfide ore to obtain polymetallic mix...

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Abstract

The invention discloses a comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc and adopts dressing-metallurgy combination method and hydrometallurgy-pyrometallurgy combination method to recover metals. The recovery method comprises the following steps: first performing bulk flotation to the complex polymetal sulphide ore, fine grinding the obtained concentrate, leaching by using two-step counter flow oxygen pressure leaching process, extracting and separating copper and zinc from the obtained leachate, electrodepositing the strip liquor of copper-loaded organic phase to obtain cathode copper, cleaning the obtained raffinate and electrodepositing to obtain cathode zinc; pressurizing leaching residue to perform flotation separation and obtain sulfur concentrate and lead silver residue, distilling sulfur concentrate to obtain sulfur; performing lead smelting process to lead silver residue to obtain electrolytic lead product and lead anodic slime; and comprehensively recovering noble metals such as gold, silver and the like from lead anodic slime. The method can greatly improve the metal recovery rate, resource utilization and the economic efficiency of mines and generate a lot of sulfur so as to obviously reduce the sulfur dioxide pollution to the atmosphere.

Description

technical field [0001] The invention relates to a comprehensive recovery method for mineral materials, in particular to a comprehensive recovery method for complex copper-lead-zinc-silver polymetallic sulfide ores. Background technique [0002] This sulfide ore is a complex polymetallic ore unique to "Three Rivers Source". Similar buoyancy, difficult to separate. Many domestic flotation tests have proved that the priority flotation process not only has a low recovery rate of main metals, but also has high mutual content of each metal in the sorted copper concentrate, lead concentrate, and zinc concentrate, and the quality is unqualified. Therefore, it is an effective way to process this kind of ore by using mixed flotation to obtain mixed concentrate, and then using smelting to separate the metals. [0003] However, there is no production practice at home and abroad for direct smelting of copper-lead-zinc mixed concentrate. Some domestic scientific research institutes hav...

Claims

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Application Information

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IPC IPC(8): C22B15/00C22B13/00C22B19/02C22B11/00C22B3/08C22B3/26C22B7/04B03D1/00C01B17/06
CPCY02P10/20
Inventor 张秉青杨俊奎徐斌陆业大王魁珽
Owner WESTERN MINING CO LTD
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