Stepped flotation of tin, lead and zinc sulfide mine

A step-by-step flotation and sulfide ore technology, applied in flotation, solid separation and other directions, can solve the problems of high zinc content, low lead and silver recovery rate, environmental pollution, etc., to avoid losses and ensure the effect of grade.

Inactive Publication Date: 2005-10-12
黎东明
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AI Technical Summary

Problems solved by technology

The advantage of this process is that it takes into account the recovery of lead, zinc, silver and tin. Its disadvantages are: the separation efficiency between lead-zinc-sulfur is low, the zinc content in lead concentrate is high, the grade of zinc concentrate is low, and zinc The recovery rate is low; the process uses cyanide, which pollutes the environment
The advantage of this process is that the grade of lead concentrate and zinc concentrate is high, and the recovery rate of zinc is better; the disadvantages are: the recovery rate of lead and silver is low; the recovery rate of tin is low

Method used

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  • Stepped flotation of tin, lead and zinc sulfide mine

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Embodiment Construction

[0027] 1. A cassiterite lead-zinc sulfide ore in Yunnan. The main metal minerals of the ore are galena, sphalerite, cassiterite, pyrite, and pyrrhotite. The main gangue minerals are quartz, feldspar, calcite and so on. The results of the multi-element analysis of the raw ore are shown in Table 1.

[0028] Table 1 Multi-element analysis of raw ore

[0029] Element Pb Zn S Fe Sn SiO 2

[0030] Content, % 3.38 5.27 14.50 18.98 0.30 26.81

[0031] Element Al 2 o 3 CaO MgO As Ag

[0032] Content, % 4.13 6.14 2.35 0.094 158g / t

[0033] use as figure 1 The process flow is shown, and the specific process parameters are;

[0034] ① Potential regulators are calcium hydroxide 2000g / t, ethionazine 30g / t, butyl xanthate 60g / t;

[0035] Lead quick selection: ethyl sulfur nitrogen 30g / t, 2 # Oil 30g / t; floating lead: ethyl disulfide 50g / t, 2 # Oil 20g / t;

[0036] ②Zinc flotation: activator copper sulfate 300g / t, butyl xanthate 120g / t, 2 # Oil 40g / t, sodium sulfite 500...

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Abstract

A step floatation technology for the tin-lead-zinc sulfide ore includes such steps as high-alkali high-speed floatation and separation of lead sulfide ore, high-alkali high-Ca floatation and separation of zinc sulfide ore, and floatation of zinc tailings. Its advantages are high grade and recovering rate of lead concentrate, no loss of Ag ore, and simple apparatus.

Description

technical field [0001] The invention relates to a lead-zinc-sulfur flotation separation technology from complex lead-zinc sulfide ores, in particular to a step-by-step high-alkali homeopathic flotation technology for tin-lead-zinc sulfide ores. Background technique [0002] Most of the tin-lead-zinc ores in my country are polymetallic sulfide ores, in addition to lead, zinc, sulfur, and tin, there are also rare and precious metals such as silver, cadmium, and germanium. The main metallic minerals are galena, sphalerite, pyrite, pyrrhotite and cassiterite. There are two main flotation processes for this type of ore: [0003] 1) Lead, zinc, etc. floatable-zinc-sulfur mixed flotation separation process [0004] The method includes grinding the raw ore to a fineness of -74μm60%-75%, regrinding the medium ore, and using lead sulfide minerals and a part of zinc sulfide minerals with similar floatability to lead sulfide minerals without adjusting the pH of the pulp. Xanthate or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B1/00B03D1/00B03D101/02B03D101/04B03D103/02
Inventor 黎东明黎家足黎维中
Owner 黎东明
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