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Method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate

A technology of potassium-rich slate and potassium feldspar, which is applied in the field of separating potassium-feldspar concentrate and iron concentrate from Baiyun Obo potassium-rich slate, can solve the problems of no industrial production and achieve the effect of improving purity

Inactive Publication Date: 2012-02-22
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some people have done research work on Baiyun Obo potassium-rich slate before, among which the process of preparing alumina and potassium carbonate from Baiyun Obo potassium-rich slate has also been semi-industrially expanded, but no industrial production has been put into production so far.

Method used

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  • Method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate
  • Method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A Baiyun Obo potassium-rich slate with a grain size of -200 mesh accounting for more than 90%, a potassium feldspar content of 67.65%, and a magnetite grade of 6.1% is subjected to the following operations by using the process of the present invention:

[0023] (1) Gravity separation: Slurry the raw material with water so that the weight concentration of the pulp is 10%, the water temperature is 10°C, and the shaking table mineral processing method is used to obtain heavy minerals and light minerals.

[0024] (2) Strong magnetic separation: The light minerals obtained by gravity separation are subjected to strong magnetic separation to obtain magnetic minerals and non-magnetic minerals, and the magnetic field strength is 1.1T.

[0025] (3) Weak magnetic separation: the heavy minerals selected by the shaker and the magnetic minerals selected by the strong magnetic separation are combined for weak magnetic separation; the weak magnetic separation adopts the process of one ...

Embodiment 2

[0029] A kind of Baiyan Obo potassium-rich slate with a grain size of -200 mesh accounting for more than 90%, a potassium feldspar content of 64.25%, and a magnetite grade of 6.4% uses the process of the present invention to carry out the following operations:

[0030] (1) Gravity separation: Slurry the raw material with water, the water temperature is 8°C, the weight concentration of the pulp is 10%, and the shaking table mineral processing method is adopted to obtain heavy minerals and light minerals.

[0031] (2) Strong magnetic separation: The light minerals obtained by gravity separation are subjected to strong magnetic separation to obtain magnetic minerals and non-magnetic minerals, and the magnetic field strength is 1.2T.

[0032](3) Weak magnetic separation: Combine the heavy minerals selected by the shaking table and the magnetic minerals selected by the strong magnetic separation for weak magnetic separation; The magnetic field strength for selection is 0.25T, and t...

Embodiment 3

[0036] A kind of Baiyun Obo potassium-rich slate with a grain size of -200 mesh accounting for more than 90%, a potassium feldspar content of 65.82%, and a magnetite grade of 6.8% uses the process of the present invention to carry out the following operations:

[0037] (1) Gravity separation: Slurry the raw material with water, the water temperature is 35°C, the weight concentration of the pulp is 20%, and the shaking table mineral processing method is used to obtain heavy minerals and light minerals.

[0038] (2) Strong magnetic separation: The light minerals obtained by gravity separation are subjected to strong magnetic separation to obtain magnetic minerals and non-magnetic minerals, and the magnetic field strength is 1.0T.

[0039] (3) Weak magnetic separation: Combine the heavy minerals selected by the shaking table and the magnetic minerals selected by the strong magnetic separation for weak magnetic separation; The magnetic field strength for selection is 0.26T, and th...

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Abstract

The invention relates to a method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate, and belongs to the field of ore dressing. The method comprises the following steps of: reselection: performing table reselection on the potassium rich slate, over 90 percent of which has the granularity of 200 meshes, and separating out heavy minerals and light minerals; strong magnetic separation: performing strong magnetic separation on the light minerals obtained by reselection to obtain magnetic minerals and nonmagnetic minerals; weak magnetic separation: merging the heavy minerals obtained by reselection and the magnetic minerals obtained by strong magnetic separation, performing weak magnetic separation to obtain the iron ore concentrate; and flotation: performing reverse flotation and positive flotation to obtain the potassium feldspar ore concentrate. The method is scientific and reasonable, and the potassium feldspar ore concentratewith the purity of 95 percent and the yield of 85 percent and the iron ore concentrate with the full iron grade of over 65 percent and the yield of more than 95 percent can be obtained.

Description

technical field [0001] The invention relates to a method for separating potassium feldspar concentrate and iron concentrate from Baiyun Obo potassium-rich slate, which belongs to the technical field of mineral processing. Background technique [0002] The Baiyan Obo deposit is a rare multi-element paragenetic deposit in the world. In the past, due to the limited technical level, only iron minerals and rare earth minerals were used, while a large number of other valuable minerals such as: fluorite, apatite, heavy Spars, potassium feldspars, niobium minerals, etc. have not been effectively utilized. Among them, the reserves of potassium-rich slate in the hanging wall of Baiyue Bozhu and East Mine are more than 300 million tons, the average grade of potassium oxide is more than 11%, the average grade of alumina is more than 16%, and the grade of magnetic iron ore Also above 4.5%. However, due to limited technical quality, it has not been utilized and is still being dumped as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
Inventor 李梅柳召刚高凯张栋梁王觅堂胡艳宏张晓伟
Owner INNER MONGOLIA UNIV OF SCI & TECH
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