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Production process of high-purity nerchinskite

A production process, kaolin technology, applied in the direction of aluminum silicate, silicate, etc., can solve the problems of halloysite purification and production process that have not been reported, and achieve the effect of low production cost, simple process flow and easy realization

Inactive Publication Date: 2011-09-07
YUNNAN TIANHONG KAOLIN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the rise of nanotechnology, halloysite with natural nanostructure has gradually entered people's research field of vision, but the purification and production process of halloysite has not been reported in the literature

Method used

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  • Production process of high-purity nerchinskite
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  • Production process of high-purity nerchinskite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A production process of high-purity halloysite, it comprises the steps:

[0026] 1) Pounding: Use a high-pressure water gun to wash the raw ore of kaolin into the mashing pool, and the mashing pool is stirred by a biaxial agitator to obtain a kaolin slurry with a mass percentage of kaolin content of 25%; the mass percentage of halloysite in the kaolin raw ore is Content greater than 30%;

[0027] 2) Primary classification: Use a sand pump to pump the kaolin slurry obtained in step 1) to a cone classifier for primary classification to remove large particles of impurities such as feldspar and quartz. There are three groups of cone classifiers, and the three groups of cone classifiers are arranged in series , the underflow of the cone classifier is discharged as tailings, and the overflow of the last cone classifier passes through a 200-mesh vibrating screen and enters the first slurry storage tank to concentrate to obtain the pulp A. The mass percentage of kaolin in the p...

Embodiment 2

[0034] A production process of high-purity halloysite, it comprises the steps:

[0035] 1) Pounding: Use a high-pressure water gun to wash the raw ore of kaolin into the mashing tank, and the mashing tank is stirred by a biaxial agitator to obtain a kaolin slurry with a mass percentage of kaolin content of 28%; the mass percentage of halloysite in the kaolin raw ore is Content greater than 30%;

[0036] 2) Primary classification: Use a sand pump to pump the kaolin slurry obtained in step 1) to a cone classifier for primary classification to remove large particles of impurities such as feldspar and quartz. There are three groups of cone classifiers, and the three groups of cone classifiers are arranged in series , the underflow of the cone classifier is discharged as tailings, and the overflow of the last cone classifier passes through a 200-mesh vibrating screen and then enters the first slurry storage tank to concentrate to obtain the pulp A. The mass percentage of kaolin in ...

Embodiment 3

[0043] A production process of high-purity halloysite, it comprises the steps:

[0044] 1) Pounding: Use a high-pressure water gun to wash the raw ore of kaolin into the mashing pool, and the mashing pool is stirred by a biaxial agitator to obtain a kaolin slurry with a mass percentage of kaolin content of 30%; the mass percentage of halloysite in the kaolin raw ore is Content greater than 30%;

[0045] 2) Primary classification: Use a sand pump to pump the kaolin slurry obtained in step 1) to a cone classifier for primary classification to remove large particles of impurities such as feldspar and quartz. There are three groups of cone classifiers, and the three groups of cone classifiers are arranged in series , the underflow of the cone classifier is discharged as tailings, and the overflow of the last cone classifier passes through a 200-mesh vibrating screen and then enters the first slurry storage tank to concentrate to obtain the pulp A. The mass percentage of kaolin in ...

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Abstract

The invention relates to a nonmetal ore purification process. A production process of high-purity nerchinskite is characterized in that the production process comprises the following steps: 1) pulp beating: using a high-pressure water jet for flushing kaolin raw ore into a pulp beating tank, and adopting a double-shaft stirring device for stirring the pulp beating tank to obtain kaolin ore pulp with the kaolin weight percent between 25 and 30 percent (the nerchinskite weight percent in the kaolin raw ore is higher than 30 percent); 2) primary grading: pumping the kaolin ore pulp obtained in the first step into a cone grading machine by a sand pump for primary grading, and making overflowing materials enter a first pulp storage tank for concentration after being processed by a vibration sieve of 200 meshes to obtain ore pulp A; 3) secondary grading; 4) fine grading; 5) concentration; and 6) drying to obtain the high-purity nerchinskite. The invention has the characteristics of simple process and high purity.

Description

technical field [0001] The invention relates to a non-metallic ore purification process, in particular to a high-purity halloysite production process. technical background [0002] Halloysite is a hydrous layered silicate mineral in the monoclinic system. The crystal structure is similar to kaolinite, and it also belongs to the 2-octahedral structure of the 1:1 structural unit layer. The chemical composition is Al 4 [Si 4 o 10 ](OH) 8 4H 2 O, the same as kaolinite, but contains water between the layers, so it is also called multi-water kaolinite. Water molecules are easy to lose, and after all the loss, it is called halloysite, which is homogeneous and multi-like with kaolinite. Kaolinite, halloysite, pearl clay and dickite are usually collectively referred to as kaolin. [0003] Halloysite is generally formed by curling multiple sheets. The outer diameter of the tube is 10-50nm, the inner diameter is 5-20nm, the length is 2-40μm, and the number of crystal layers is 15...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/26
Inventor 肖国琪韩利雄严春杰
Owner YUNNAN TIANHONG KAOLIN MINING
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