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Method for flotation of zinc oxide mineral under acidic condition

An acid condition, zinc oxide technology, used in flotation, solid separation and other directions, can solve the problems of large dosage, many types of chemicals, complex process structure, etc. Effect

Inactive Publication Date: 2012-08-15
广西华锡集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flotation method of zinc oxide ore mainly adopts sulfuration-amine flotation, sulfuration-xanthate flotation, fatty acid direct flotation, high-carbon long-chain SH-based collector flotation and other flotation methods. These flotation methods It is related to the amount of slime produced during the crushing and grinding process of zinc oxide ore. When the amount of slime is large, desliming is generally used before flotation. When the amount of slime is small, the flotation process is controlled by adding a dispersant. The process structure is complex, there are many types of chemicals and large dosage, and the recovery rate of zinc oxide minerals is low, which affects the recovery and utilization of zinc oxide resources

Method used

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  • Method for flotation of zinc oxide mineral under acidic condition
  • Method for flotation of zinc oxide mineral under acidic condition
  • Method for flotation of zinc oxide mineral under acidic condition

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Mineral raw materials:

[0018] The content of zinc in the mineral raw materials used is 8.32%, the content of silicon dioxide is 23.67%, and the content of iron is 13.56%. Phase analysis shows that zinc mainly exists in the form of zinc carbonate, and there is a small amount of zinc silicate minerals; gangue minerals are mainly in the form of It exists in the form of silicate, and some limonite.

[0019] 2. Flotation agents and operating conditions:

[0020]

[0021] When in use, the medicament is first prepared into the following weight percent concentrations:

[0022]

[0023] In the flotation process, after the ore is ground until the mineral monomers are dissociated, sulfuric acid is added to adjust the pH value of the slurry to 4.5-5.5, then water glass and tannin extract are added to suppress gangue minerals, and finally oleic acid is used to capture zinc oxide minerals. Zinc concentrate products are obtained. Tests were carried out according to the a...

Embodiment 2

[0025] The content of zinc in the mineral raw materials used is 9.77%, the content of silicon dioxide is 26.11%, and the content of iron is 16.80%. Phase analysis shows that zinc mainly exists in the form of zinc carbonate, and there is a small amount of zinc silicate minerals; gangue minerals are mainly in the form of It exists in the form of silicate, and some limonite.

[0026] 2. Flotation agents and operating conditions:

[0027]

[0028]

[0029] When in use, the medicament is first prepared into the following weight percent concentrations:

[0030]

[0031] In the flotation process, after the ore is ground until the mineral monomers are dissociated, sulfuric acid is added to adjust the pH value of the slurry to 4.5-5.5, then water glass and tannin extract are added to suppress gangue minerals, and finally oleic acid is used to capture zinc oxide minerals. Zinc concentrate products are obtained. Experiments were carried out according to the above process param...

Embodiment 3

[0033] The content of zinc in the mineral raw materials used is 9.14%, the content of silicon dioxide is 24.77%, and the content of iron is 14.92%. Phase analysis shows that zinc mainly exists in the form of zinc carbonate, and there is a small amount of zinc silicate minerals; gangue minerals are mainly in the form of It exists in the form of silicate, and some limonite.

[0034] 2. Flotation agents and operating conditions:

[0035]

[0036] When in use, the medicament is first prepared into the following weight percent concentrations:

[0037]

[0038] In the flotation process, after the ore is ground until the mineral monomers are dissociated, sulfuric acid is added to adjust the pH value of the slurry to 4.5-5.5, then water glass and tannin extract are added to suppress gangue minerals, and finally oleic acid is used to capture zinc oxide minerals. Zinc concentrate products are obtained. Experiments were carried out according to the above process parameters, showi...

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Abstract

The invention relates to a method for flotation of zinc oxide mineral under the acidic condition. In the flotation process, the mineral is grinded into mineral monomer and dissociated, sulfuric acid is added, the pH value of the pulp is regulated to 4.5-5.5, water glass and tannin extract are added to inhibit gangue mineral, and finally oleic acid is added to collect the zinc oxide mineral to obtain zinc concentrate. By using the method, the zinc oxide mineral can be effectively recycled, and the zinc oxide concentrate with the grade of 38.90-39.54% and the recycling rate of 73.66-77.73% is obtained through once roughing, twice scavenging and twice selection under the condition that the grade of feeder zinc is 8.32-9.77%.

Description

1. Technical field [0001] The invention relates to a mineral flotation separation method, in particular to a method for flotation zinc oxide minerals under acidic conditions. 2. Background technology [0002] The flotation method of zinc oxide ore mainly adopts sulfuration-amine flotation, sulfuration-xanthate flotation, fatty acid direct flotation, high-carbon long-chain SH-based collector flotation and other flotation methods. These flotation methods It is related to the amount of slime produced during the crushing and grinding process of zinc oxide ore. When the amount of slime is large, desliming is generally used before flotation. When the amount of slime is small, the flotation process is controlled by adding a dispersant. The structure of the process is complex, the types of agents are large and the dosage is large, and the recovery rate of zinc oxide minerals is low, which affects the recovery and utilization of zinc oxide resources. 3. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03B1/04B03D1/018B03D101/02B03D101/06
Inventor 陈锦全吴伯增周德炎谭建助魏宗武
Owner 广西华锡集团股份有限公司
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