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Preparing method for high-whiteness potash feldspar powder

A technology of whiteness potassium feldspar powder and potassium feldspar, applied in high-gradient magnetic separation, high-gradient magnetic separator, solid separation, etc., can solve the problems of high cost of impurity removal, generation of waste acid, large energy consumption, etc., and achieve Improve the flotation effect, improve the whitening efficiency, and the effect of simple process

Inactive Publication Date: 2019-01-04
贺州市骏鑫矿产品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnetic separation has a good iron removal effect, and the iron content can be reduced to 0.24%, but other impurities are difficult to remove, low efficiency, serious air pollution and other shortcomings
Flotation has a good impurity removal effect, and the iron content can but cannot achieve the effect of whitening; its process is simple and easy to process, but it has high processing costs, high energy consumption, and low profit; its process needs to add chemical substances, resulting in High production costs, serious waste of resources, serious environmental pollution
In recent years, potassium feldspar has also been purified by pickling. Generally, sulfuric acid pickling is used. This method has a good impurity removal effect and a certain whitening effect, but requires high concentration of sulfuric acid. To reach more than 40%, the utilization rate of sulfuric acid is low, and a large amount of waste acid will be produced, resulting in high cost of impurity removal and great impact on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of high whiteness potassium feldspar powder, comprising the following steps:

[0030] S1. Mineral dressing and ore washing: After excavation, the raw potassium feldspar ore is crushed and washed through a spiral chute to remove the sludge in the raw ore, and finally dehydrated for use.

[0031] S2. Preliminary screening: send the dehydrated raw ore into the ore color sorter, and the ore color sorter screens to obtain the raw ore with a whiteness greater than 15%.

[0032] S3. Ball milling: Crushing the raw ore obtained through preliminary screening until the particle size is 2-5mm, and then putting it into a ball mill for ball milling; adding water for ball milling, and the mass ratio of water and mineral material is 35:65. The particle size of the ball mill was 60 mesh, and the ball mill slurry was obtained.

[0033] S4. Magnetic separation: The ball mill slurry is subjected to high-gradient magnetic separation, the magnetic field strength of the ...

Embodiment 2

[0038] A preparation method of high whiteness potassium feldspar powder, comprising the following steps:

[0039] S1. Mineral dressing and ore washing: After excavation, the raw potassium feldspar ore is crushed and washed through a spiral chute to remove the sludge in the raw ore, and finally dehydrated for use.

[0040] S2. Preliminary screening: send the dehydrated raw ore into the ore color sorter, and the ore color sorter screens to obtain the raw ore with a whiteness greater than 15%.

[0041] S3. Ball milling: Crushing the raw ore obtained from preliminary screening until the particle size is 2-5mm, and then putting it into a ball mill for ball milling; adding water for ball milling, and the mass ratio of water and mineral material is 40:60. The particle size of the ball mill was 100 mesh, and the ball mill slurry was obtained.

[0042] S4. Magnetic separation: The ball mill slurry is subjected to high-gradient magnetic separation, the magnetic field strength of the hi...

Embodiment 3

[0047] A preparation method of high whiteness potassium feldspar powder, comprising the following steps:

[0048] S1. Mineral dressing and ore washing: After excavation, the raw potassium feldspar ore is crushed and washed through a spiral chute to remove the sludge in the raw ore, and finally dehydrated for use.

[0049] S2. Preliminary screening: send the dehydrated raw ore into the ore color sorter, and the ore color sorter screens to obtain the raw ore with a whiteness greater than 15%.

[0050] S3. Ball milling: Crushing the raw ore obtained through preliminary screening until the particle size is 2-5mm, and then putting it into a ball mill for ball milling; adding water for ball milling, and the mass ratio of water and mineral material is 30:70. The particle size of the ball mill was 100 mesh, and the ball mill slurry was obtained.

[0051] S4. Magnetic separation: The ball mill slurry is subjected to high-gradient magnetic separation, the magnetic field strength of the...

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Abstract

The invention provides a preparing method for high-whiteness potash feldspar powder. The preparing method comprises beneficiation and ore washing, preliminary screening, ball milling, magnetic separation, primary flotation, secondary flotation and water removal. Petroleum sodium sulfonate and sodium oleate are selected as a collecting agent of primary flotation, and lauryl amine, dodecyl trimethylammonium chloride and cetyltrimethylammonium chloride serve as a collecting agent of secondary flotation; and compared with a single collecting agent, the flotation effect can be improved, and the whiteness is improved. Treatment is conducted in a physical method and chemical method combination manner, the whitening efficiency is improved, and the high-whiteness potash feldspar powder is obtained; and the pressure brought to the environment due to usage of high-concentration sulfuric acid is avoided.

Description

technical field [0001] The invention relates to the technical field of food, in particular to a preparation method of high whiteness potassium feldspar powder. Background technique [0002] Potassium feldspar is a kind of feldspar mineral, which is a framework silicate containing potassium, which is KAlSi 3 o 8 The general term for the three homogeneous multi-phase variants of feldspar, orthoclase and feldspar. Potassium feldspar has the characteristics of low melting point, long melting interval and high viscosity of molten liquid, and the glassy substance melted at high temperature has the characteristics of transparency, and is widely used in the fields of glass and ceramic industries. [0003] In recent years, with the development of color TV glass bulbs and ultra-high-voltage electric porcelain industry, the daily-use ceramics have become increasingly high-grade, and the demand for high-purity low-iron potassium feldspar is increasing. Due to resource constraints, hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03C1/025B02C21/00B03D101/00B03D101/02B03D101/04
CPCB02C21/00B03C1/002B03D1/018B03D2201/007B03D2201/02B03D2201/04
Inventor 邓培有
Owner 贺州市骏鑫矿产品有限责任公司
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