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Superfine kaoline lamellar material preparation

A technology of ultra-fine kaolin and lamella materials, applied in the direction of benzanthrone dyes, etc., can solve the problems of large amount of potassium acetate and time-consuming, and achieve the effects of low production cost, simple peeling process, and simple operation

Inactive Publication Date: 2003-09-03
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the amount of potassium acetate is large and time-consuming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Preparation of Sandwich Composite

[0028] Weigh 3g and 2g of kaolin and potassium acetate respectively, put them into a vortex mixer, and mix them evenly. When the air humidity is 70%, grind while potassium acetate absorbs the moisture in the kaolin and the air. After 35min, the interlayer composite is obtained. ;

[0029] Step Two: Intercalation of the Sandwich Complex

[0030] The interlayer compound prepared in the previous step was left to stand for 24 hours to complete the intercalation treatment of kaolin, and the intercalation rate was 83%;

[0031] The third step: washing and peeling

[0032] Inject 150 g of water into the interlayer compound obtained in the previous step, stir for 1 hour, dissolve the potassium acetate in the interlayer compound in water, and repeat this step once after centrifugal dehydration, the potassium acetate is eluted, and the kaolin naturally peels off;

[0033] Step Four: Finished Product

[0034] The kaolin obtained in t...

Embodiment 2

[0036] Step 1: Preparation of Sandwich Composite

[0037] Weigh 3g and 3g of kaolin and potassium acetate respectively, put them into a vortex mixer, and mix them evenly. When the air humidity is 70%, grind while potassium acetate absorbs the moisture in the kaolin and the air. After 25 minutes, the interlayer composite is obtained. ;

[0038] Step Two: Intercalation of the Sandwich Complex

[0039] Put the interlayer compound prepared in the previous step to stand for 24 hours to complete the intercalation treatment of kaolin, and the intercalation rate is 90%;

[0040] The third step: washing and peeling

[0041] Inject 150 g of water into the interlayer compound obtained in the previous step, stir for 1 hour, dissolve the potassium acetate in the interlayer compound in water, and repeat this step once after centrifugal dehydration, the potassium acetate is eluted, and the kaolin naturally peels off;

[0042] Step Four: Finished Product

[0043] The kaolin obtained in th...

Embodiment 3

[0045] Step 1: Preparation of Sandwich Composite

[0046] Weigh 3g and 4.5g of kaolin and potassium acetate respectively, put them into a vortex mixer, and mix evenly. Under the condition of air humidity of 70%, while grinding, potassium acetate absorbs the moisture in the kaolin and the air, and after 20min, the interlayer composite is obtained. thing;

[0047] Step Two: Intercalation of the Sandwich Complex

[0048] Under the same air humidity as the previous step, the interlayer composite prepared in the previous step was left to stand for 24 hours to complete the intercalation treatment of kaolin, and the intercalation rate was 97%;

[0049] The third step: washing and peeling

[0050] Inject 150 g of water into the interlayer compound obtained in the previous step, stir for 1 hour, dissolve the potassium acetate in the interlayer compound in water, and repeat this step once after centrifugal dehydration, the potassium acetate is eluted, and the kaolin naturally peels of...

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Abstract

A superfine kaolin flake material is prepared through mixing potassium acetate as sandwich agent with kaolin grinding, intercalating, laying aside, water washing, centrifugal separating of patassium acetate, stripping kaolin flakes, baking and grinding. Its advantages are high intercalating rate and slake-stripping effect, and low cost.

Description

technical field [0001] The invention relates to a preparation method of superfine kaolin sheet material, especially the interlayer process does not need to add water, directly utilizes the moisture-absorbing properties of potassium acetate, and can achieve good intercalation effects under various weather conditions, and can be directly washed with water A method for exfoliating kaolin belongs to the technical field of preparation of inorganic ultrafine sheet materials. Background technique [0002] Kaolin is a very important non-metallic mineral material, mainly used in papermaking, plastics, rubber, ceramics, pigments, cement, building materials, refractory materials and other industries. In the production of many high-end products in the above industries, the requirements for the particle size of raw materials are getting higher and higher, such as papermaking, coatings, fine ceramics, etc., all require the content of ultrafine particles (particle ...

Claims

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Application Information

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IPC IPC(8): C09B3/08
Inventor 单永奎戴立益孙红刘志强何鸣元
Owner EAST CHINA NORMAL UNIVERSITY
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