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Manufacturing method of nano-kaolin

A technology of nano-kaolin and preparation method, applied in the directions of aluminum silicate, silicate, etc., can solve the problems of coulomb force damage between layers of kaolin, particle size not reaching nano-scale, etc.

Inactive Publication Date: 2004-07-21
广东佛陶集团物资工贸有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing method of pulverizing ceramic raw materials such as kaolin is the grinding method, that is, through physical grinding, the ceramic raw materials such as kaolin are ground into very fine powders, but limited by the existing technology, it is impossible to grind kaolin between layers. Coulomb force is destroyed, so the particle size of the ground particles is far from nanometer

Method used

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Embodiment Construction

[0009] Now in conjunction with embodiment the present invention is described in further detail:

[0010] The present invention is realized in such a way that the kaolin raw material is weighed, put into a heat-resistant tube, vacuum-dried and treated at a constant temperature of 150° C. for 4 hours.

[0011] Take by weighing 100 parts of the above-mentioned dried kaolin and place it in the reactor, then weigh the chemical auxiliary agent and the surfactant auxiliary agent according to the amount in Table 1 and place them in the mushroom machine after they are fully mixed (the grinding time is generally for more than 5 minutes), after the reaction is complete, the material is put into a microwave reactor to fully react (the reaction time is more than 8 minutes when the power of the microwave reactor is 600-2000W), and then put into the mushroom machine to fully grind ( Grinding time is generally more than 10 minutes), then put the material into water to wash, then use inorganic...

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Abstract

A process for preparing nano Kaolinite includes adding the chemical assistant (potassium acetate, dimethyl sulfoxide, thiourea, urea, hydrazine, or their derivative) which can decrease the Coulomb force between layers of kaolinite, heating or plasma, ultrasonic or microwave acting for physiochemical reaction, grinding, water washing and drying.

Description

Technical field: [0001] The invention relates to a pulverization and separation method. Background technique: [0002] Kaolin is a 1:1 layered aluminosilicate mineral, which is one of the main raw materials for the production of ceramics. The existing method of pulverizing ceramic raw materials such as kaolin is the grinding method, that is, through physical grinding, the ceramic raw materials such as kaolin are ground into very fine powders, but limited by the existing technology, it is impossible to grind kaolin between layers. The Coulomb force destroys, so the particle size of the ground particles is far from nanometer. Invention content: [0003] The invention object of the present invention is to provide a kind of preparation method of the nano kaolin that can pulverize the ceramic raw materials such as kaolin to nanometer powder. [0004] It is mainly to mix chemical additives that can destroy or weaken the Coulomb force between kaolin layers into kaolin. The chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/26C04B33/04
Inventor 皮振邦田熙科
Owner 广东佛陶集团物资工贸有限公司
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