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Floatation method of sulfur-oxygen mixed lead antimony ore

A mixed ore, sulfur and oxygen technology, applied in flotation, solid separation, etc., can solve the problems of long production process, unstable production, difficult production control, etc., and achieve high recovery rate, simple process structure and high-grade effect

Inactive Publication Date: 2015-12-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of sulfur-oxygen mixed lead-antimony ore, the flotation process of floating sulfide ore first and then oxidized minerals can be used at present, or asynchronous flotation, but the disadvantage of this method is that the production process is long and it is not easy to control during production. The production is unstable; in addition, there is a plan for flotation of sulfide and oxidized minerals together, or synchronous flotation, but this method must use targeted selective agents

Method used

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  • Floatation method of sulfur-oxygen mixed lead antimony ore
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  • Floatation method of sulfur-oxygen mixed lead antimony ore

Examples

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Embodiment 1

[0015] An example of the flotation method of sulfur-oxygen mixed lead-antimony ore of the present invention comprises the steps:

[0016] 1. Mineral raw materials:

[0017] The mineral raw material used is lead-antimony-zinc-oxygen mixed ore, and the content of lead in the ore is 0.28%, antimony 0.24%, zinc 1.26%, and sulfur 5.63%. The phase analysis shows that the lead-antimony minerals are mainly brittle-stibnite, with a small amount of galena and stibnite; Mainly iron ore and pyrrhotite, with a small amount of arsenopyrite. The oxidation rate of lead in the ore reaches 24.27%, the oxidation rate of antimony reaches 28.10%, and the oxidation rate of zinc reaches 19.65%.

[0018] 2. Flotation agents and operating conditions:

[0019]

[0020]

[0021] During the flotation process, the ore is ground until the mineral monomers are dissociated, then sodium carbonate is added to adjust the pH to 7.5-8, sodium hexametaphosphate is used as a fine mud mineral dispersant, zi...

Embodiment 2

[0023] Another example of the flotation method of sulfur-oxygen mixed lead-antimony ore of the present invention comprises the steps:

[0024] 1. Mineral raw materials:

[0025] The mineral raw material used is lead-antimony-zinc-oxygen mixed ore, and the content of lead in the ore is 1.07%, antimony 0.83%, zinc 3.20%, and sulfur 7.36%. The phase analysis shows that the lead minerals are mainly galena and a small amount of white lead minerals, the antimony is mainly stibnite, the zinc minerals are mainly sphalerite and a small amount of sphalerite, and the sulfur minerals are mainly Mainly pyrite and arsenopyrite, with a small amount of pyrrhotite. The oxidation rate of lead in the ore reaches 30.50%, the oxidation rate of antimony reaches 33.52%, and the oxidation rate of zinc reaches 21.70%.

[0026] 2. Flotation agents and operating conditions:

[0027]

[0028] During the flotation process, the ore is ground until the mineral monomers are dissociated, then sodium car...

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Abstract

The invention relates to a floatation method of sulfur-oxygen mixed lead antimony ore. Sodium carbonate is used as a pH regulator, sodium hexametaphosphate is used as a fine sludge mineral dispersing agent, zinc sulfate and calcium hypochlorite are used as a gangue mineral inhibitor, sodium sulfide, ammonium bicarbonate and lead nitrate are used as a lead antimony ore activator, diethyl dithiocarbamate and butyl xanthate are used as a lead antimony ore collector, and 2# oil is used as a foaming agent, thereby performing floatation on the sulfur-oxygen mixed lead antimony ore to obtain the lead antimony mixed concentrate. The method can effectively recover the sulfur-oxygen mixed lead antimony ore. Under the conditions that the lead grade of the feed ore is 0.28-1.07% and the antimony grade is 0.24-0.83%, the lead antimony mixed concentrate, of which the lead grade is 20.87-34.55% and the antimony grade is 17.53-28.40%, can be obtained. The lead recovery rate is 75.21-82.77%, and the antimony recovery rate is 73.60-80.75%.

Description

1. Technical field [0001] The invention relates to a mineral recovery method, in particular to a flotation method of sulfur-oxygen mixed lead-antimony ore. 2. Background technology [0002] Sulfur-oxygen mixed ore lead-antimony ore is a refractory ore due to its complex composition, large mud content, and high oxidation rate. At present, domestic and foreign sulfur-oxygen mixed lead-antimony ores generally adopt the process of recovering sulfide ore first and then recovering oxidized ore, that is, the process of sulfur first and oxygen, and the process of recovering metal elements. For this kind of sulfur-oxygen mixed lead-antimony ore, the flotation process that first floats the sulfide ore and then the oxide mineral can be used, or asynchronous flotation, but the disadvantage of this method is that the production process is long and it is not easy to control during production. The production is unstable; in addition, there is a plan for flotation of sulfide and oxidized m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D1/02B03D101/02B03D101/04B03D101/06B03D103/02
Inventor 魏宗武穆枭林美群梁绍华石倡溶蒋文俊王娜刘萌邓建周善鹏管继炜
Owner GUANGXI UNIV
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