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Method for recovering fine mud cassiterite

A recovery method and technology of cassiterite, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of large specific surface area, small collision probability of cassiterite particles, loss of cassiterite minerals, etc., and achieve process structure. Simple, low dosage, high recovery effect

Inactive Publication Date: 2012-09-12
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] Due to the small mass of fine peatite minerals, the specific surface area is large. In conventional flotation, the collision probability of cassiterite particles is small and the specificity of the agent is poor, which ultimately leads to low concentrate grade and recovery rate. Millions of tons of tin per year Stone minerals are lost in the form of fine particles
In view of the various reasons that cause the difficulty of fine-grained mineral separation, mineral processing workers start from different angles and propose some fine-grained mineral separation methods, such as: carrier flotation, selective flocculation flotation, flotation column flotation, two Liquid flotation, electrochemical flotation, vacuum or reduced pressure flotation, shear flocculation, etc., but there are not many fine particle separation methods that can be applied to industrial practice.

Method used

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  • Method for recovering fine mud cassiterite
  • Method for recovering fine mud cassiterite
  • Method for recovering fine mud cassiterite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Mineral raw materials:

[0018] The mineral raw material used is tin tailings separated by shaking table, the particle size is 5-74 microns, the tin content is 0.37%, the gangue mineral silicon dioxide content is 29.84%, and the calcium carbonate content is 32.62%.

[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] After using sodium hexametaphosphate to disperse the fine stiltite minerals, the fine stiltite minerals are classified, and then the fine stiltite minerals of different particle sizes are used in a fine mud shaker with a stroke of 8 mm and a stroke rate of 320 times per minute. Separately carry out re-election to obtain fine ore concentrates of different particle sizes, and finally combine the fine ore concentrates of different particle sizes and then carry out flotation to recover the fine ores. During the flotatio...

Embodiment 2

[0025] 1. Mineral raw materials

[0026] The mineral raw material used is tin tailings separated by shaking table, the particle size is 5-74 microns, the tin content is 0.45%, the gangue mineral silicon dioxide content is 32.14%, and the calcium carbonate content is 36.59%.

[0027] 2. Flotation agents and operating conditions:

[0028]

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

[0030]

[0031] After using sodium hexametaphosphate to disperse the fine stiltite minerals, the fine stiltite minerals are classified, and then the fine stiltite minerals of different particle sizes are used in a fine mud shaker with a stroke of 11 mm and a stroke rate of 360 times per minute Separately carry out re-election to obtain fine ore concentrates of different particle sizes, and finally combine the fine ore concentrates of different particle sizes and then carry out flotation to recover the fine ores. During the flotation...

Embodiment 3

[0033] 1. Mineral raw materials

[0034] The mineral raw material used is tin tailings separated by shaking table, the particle size is 5-74 microns, the tin content is 0.40%, the gangue mineral silicon dioxide content is 34.48%, and the calcium carbonate content is 31.76%.

[0035] 2. Flotation agents and operating conditions:

[0036]

[0037] When in use, the medicament is first prepared into the following weight percent concentrations:

[0038]

[0039] After using sodium hexametaphosphate to disperse the fine stiltite minerals, the fine stiltite minerals are classified, and then the fine stiltite minerals of different particle sizes are used in a fine mud shaker with a stroke of 9 mm and a stroke rate of 340 times / min. Separately carry out re-election to obtain fine ore concentrates of different particle sizes, and finally combine the fine ore concentrates of different particle sizes and then carry out flotation to recover the fine ores. During the flotation proces...

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Abstract

The invention discloses a method for recovering fine mud cassiterite. The method comprises the following steps of dispersing a fine mud cassiterite mineral in an agitator by using sodium hexametaphosphate as a dispersing agent, grading the fine mud cassiterite mineral by using a high frequency fine screen, recovering the graded fine mud cassiterite mineral through gravity separation by using a fine mud cassiterite table concentrator to obtain fine mud rough concentrates in different particle sizes, and combining the fine mud rough concentrates in different particle sizes and performing floatation recovery on the fine mud cassiterite to obtain a cassiterite concentrate. By the method, the fine mud cassiterite can be effectively recovered, and the fine mud cassiterite concentrate of which the cassiterite grade is 45.87-46.21 percent and the recovery rate is 52.51-56.75 percent can be obtained under the condition that the fed mineral has the cassiterite grade of 0.37-0.45 percent.

Description

1. Technical field [0001] The invention relates to a method for recovering minerals, in particular to a method for recovering fine peatinite. 2. Background technology [0002] Due to the small mass of fine peatite minerals, the specific surface area is large. In conventional flotation, the collision probability of cassiterite particles is small and the specificity of the agent is poor, which ultimately leads to low concentrate grade and recovery rate. Millions of tons of tin per year Stone minerals are lost in the form of fine particles. In view of the various reasons that cause the difficulty of fine-grained mineral separation, mineral processing workers start from different angles and propose some fine-grained mineral separation methods, such as: carrier flotation, selective flocculation flotation, flotation column flotation, two Liquid flotation, electrochemical flotation, vacuum or reduced pressure flotation, shear flocculation, etc., but there are not many fine particl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B5/04B03D1/00B07B1/00
Inventor 吴伯增陈锦全余忠保张兴琼魏宗武
Owner 广西华锡集团股份有限公司
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