Flotation separation method of antimony sulfide gold minerals

A technology of mineral flotation and separation method, applied in flotation, solid separation and other directions, can solve the problems of difficult separation, affecting gold recovery rate, waste of resources, etc., to achieve the effect of less energy consumption, less chemical dosage, and simple process

Active Publication Date: 2014-05-28
白银金锑矿业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In some sulfide ores of gold-bearing minerals such as pyrite or arsenopyrite, there are often associated antimony sulfide minerals with an antimony grade of 0.3% to 1%. It is difficult to separate in the flotation process. Generally, some antimony concentrates are obtained after hand-selected antimony nuggets, and the rest are directly flotation with gold-loaded pyrite and arsenopyrite to contain impurities in gold concentrates, and antimony is used as the gold smelting process Harmful elements, if the content of antimony is too high, it will not only increase the cost of gold smelting, but also affect the recovery rate of gold, which will not only increase the economic burden of the enterprise but also waste resources

Method used

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  • Flotation separation method of antimony sulfide gold minerals
  • Flotation separation method of antimony sulfide gold minerals
  • Flotation separation method of antimony sulfide gold minerals

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Experimental program
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Effect test

Embodiment 1

[0015] 1. Mineral raw materials:

[0016] The antimony content in the mineral raw materials used is 0.37%, and the gold content is 1.86 g / t. Phase analysis shows that the antimony-containing minerals are mainly stibnite, and the gold-bearing minerals are pyrite and arsenopyrite.

[0017] 2. The total dosage of flotation agents is:

[0018]

[0019] The operation steps and technical conditions are as follows:

[0020] In the process of mixed flotation, the ore is added to the ore mill to grind the ore until the mineral monomer is dissociated. Under natural pH conditions, lead nitrate is firstly added as the activator of antimony gold minerals, and then butyl xanthate is added for collection. agent, and finally add 2 # No. 1 oil was used as a foaming agent for mixed flotation to obtain mixed antimony-gold concentrate; in the flotation separation process, active carbon was used to remove the drug, and then sodium hydroxide was used to adjust the pH value to 8.5, and then sod...

Embodiment 2

[0022] 1. Mineral raw materials:

[0023] The antimony content in the mineral raw materials used is 0.62%, and the gold content is 2.15 g / t. Phase analysis shows that the antimony-containing minerals are mainly stibnite, and the gold-bearing minerals are pyrite and arsenopyrite.

[0024] 2. The total dosage of flotation agents is:

[0025]

[0026] The operation steps and technical conditions are as follows:

[0027] In the process of mixed flotation, the ore is added to the ore mill to grind the ore until the mineral monomer is dissociated. Under natural pH conditions, lead nitrate is firstly added as the activator of antimony gold minerals, and then butyl xanthate is added for collection. agent, and finally add 2 # No. oil is used as a foaming agent for mixed flotation to obtain mixed antimony-gold concentrate; in the flotation separation process, activated carbon is used to remove the drug, and then sodium hydroxide is used to adjust the pH value to 9, and then sodium ...

Embodiment 3

[0029] 1. Mineral raw materials:

[0030] The antimony content in the mineral raw materials used is 0.87%, and the gold content is 3.26 g / t. Phase analysis shows that the antimony-containing minerals are mainly stibnite, and the gold-bearing minerals are pyrite and arsenopyrite.

[0031] 2. The total dosage of flotation agents is:

[0032]

[0033] The operation steps and technical conditions are as follows:

[0034] In the process of mixed flotation, the ore is added to the ore mill to grind the ore until the mineral monomer is dissociated. Under natural pH conditions, lead nitrate is firstly added as the activator of antimony gold minerals, and then butyl xanthate is added for collection. agent, and finally add 2 # No. oil is used as a foaming agent for mixed flotation to obtain mixed antimony-gold concentrate; in the flotation separation process, active carbon is used to remove the drug, and then sodium hydroxide is used to adjust the pH value to 9.5, and then sodium h...

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Abstract

A flotation separation method of antimony sulfide gold minerals comprises the steps of performing bulk flotation to obtain antimony-gold mixed concentrate firstly and then separating the antimony-gold mixed concentrate to obtain antimony concentrate and gold concentrate, wherein in the bulk flotation, lead nitrate is taken as an activator for the antimony gold minerals, while sodium n-butylxanthate is used as a collecting agent and 2# oil is taken as a foaming agent; and in the flotation separation process, active carbon is used for reagent removal, while sodium hydroxide is used for adjusting the pH value to be 8.5-9.5, sodium humate and starch are used as a gold-containing mineral inhibitor and N, N-sodium diethyldithiocarbamate is used as the antimony mineral collecting agent. According to the flotation separation method, the antimony sulfide minerals can be effectively separated from the gold-carrying minerals through flotation, so that the antimony concentrate having the antimony grade of 33.82%-37.28% and the recovery rate of 87.21%-91.62% is obtained, and simultaneously, the gold concentrate having the grade of 40.27-45.81g / ton and the recovery rate of 85.64%-92.16% is obtained, through bulk flotation and further separation under the conditions that the feeding antimony grade is 0.37%-0.87% and the gold grade is 1.86-3.26 g / ton.

Description

1. Technical field [0001] The invention relates to a mineral flotation separation method, in particular to an antimony gold sulfide mineral flotation separation method. 2. Background technology [0002] In some sulfide ores of gold-bearing minerals such as pyrite or arsenopyrite, there are often associated antimony sulfide minerals with an antimony grade of 0.3% to 1%. It is difficult to separate in the flotation process. Generally, some antimony concentrates are obtained after hand-selected antimony nuggets, and the rest are directly flotation with gold-loaded pyrite and arsenopyrite to contain impurities in gold concentrates, and antimony is used as the gold smelting process Harmful elements, if the content of antimony is too high, it will not only increase the cost of gold smelting, but also affect the recovery rate of gold, which will not only increase the economic burden of the enterprise but also waste resources. 3. Contents of the invention [0003] The object of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00
Inventor 魏宗武钟景裕谢尚文
Owner 白银金锑矿业科技有限公司
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