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Preparation method and application of high-temperature-resistant silicon carbide sagger

A technology of silicon carbide sagger and high temperature resistance, applied in the field of saggers, can solve the problems of low yield and poor performance of saggers, and achieve the effect of improving performance, improving corrosion resistance and high temperature resistance, and compact internal structure of saggers

Inactive Publication Date: 2019-11-15
湖南太子新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to provide a preparation method and application of a high-temperature-resistant silicon carbide sagger, which solves the problems of low yield and poor performance of the sagger

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high temperature resistant silicon carbide sagger, made of the following raw materials in parts by weight: 21 parts of silicon carbide powder, 1 part of magnesium oxide powder, 8 parts of alumina powder, 6 parts of wollastonite powder, 6 parts of glass powder, sodium silicate 30 parts of powder, 11 parts of lithium silicate, 3 parts of dispersant and 5 parts of binder; the purity of the silicon carbide powder is greater than 98%; the lithium silicate is water-soluble lithium silicate.

[0021] A kind of preparation method of high temperature resistant silicon carbide sagger, described method comprises the following steps:

[0022] A. Mix silicon carbide powder, magnesium oxide powder, alumina powder, wollastonite powder and glass powder and grind them in a mortar, so that the ground silicon carbide powder, magnesium oxide powder, aluminum oxide powder, wollastonite powder and glass The particle size of the powder is 100 mesh;

[0023] B, then mix the sodium silicate ...

Embodiment 2

[0032] A high temperature resistant silicon carbide sagger, made of the following raw materials in parts by weight: 25 parts of silicon carbide powder, 5 parts of magnesium oxide powder, 10 parts of alumina powder, 7 parts of wollastonite powder, 8 parts of glass powder, sodium silicate 31 parts of powder, 12 parts of lithium silicate, 4 parts of dispersant and 7 parts of binder; the purity of the silicon carbide powder is greater than 98%; the lithium silicate is water-soluble lithium silicate.

[0033] A kind of preparation method of high temperature resistant silicon carbide sagger, described method comprises the following steps:

[0034] A. Mix silicon carbide powder, magnesium oxide powder, alumina powder, wollastonite powder and glass powder and grind them in a mortar, so that the ground silicon carbide powder, magnesium oxide powder, aluminum oxide powder, wollastonite powder and glass The particle size of the powder is 500 mesh;

[0035] B, then mix the sodium silicat...

Embodiment 3

[0044] A high temperature resistant silicon carbide sagger, made of the following raw materials in parts by weight: 30 parts of silicon carbide powder, 6 parts of magnesium oxide powder, 12 parts of alumina powder, 8 parts of wollastonite powder, 10 parts of glass powder, sodium silicate 32 parts of powder, 14 parts of lithium silicate, 5 parts of dispersant and 8 parts of binder; the purity of the silicon carbide powder is greater than 98%; the lithium silicate is water-soluble lithium silicate.

[0045] A kind of preparation method of high temperature resistant silicon carbide sagger, described method comprises the following steps:

[0046] A. Mix silicon carbide powder, magnesium oxide powder, alumina powder, wollastonite powder and glass powder and grind them in a mortar, so that the ground silicon carbide powder, magnesium oxide powder, aluminum oxide powder, wollastonite powder and glass The particle size of the powder is 800 mesh;

[0047] B, then mix the sodium silica...

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PUM

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Abstract

The invention discloses a preparation method and application of a high-temperature-resistant silicon carbide sagger. The high-temperature-resistant silicon carbide sagger is prepared from the following raw materials in parts by weight: 20-30 parts of silicon carbide powder, 4-6 parts of magnesia powder, 8-12 parts of alumina powder, 5-8 parts of wollastonite powder, 5-10 parts of glass powder, 30-32 parts of sodium silicate powder, 10-15 parts of lithium silicate, 3-5 parts of a dispersant and 5-8 parts of a binding agent. Due to constitution component change and requirements, the corrosion resistance and the high temperature resistance of the sagger can be effectively improved. Due to steps of the preparation process disclosed by the invention, internal structures of the sagger can be dense, and the performance of the sagger can be effectively improved.

Description

technical field [0001] The invention relates to the field of saggers, in particular to a preparation method and application of a high-temperature-resistant silicon carbide sagger. Background technique [0002] At present, the positive electrode material of lithium battery is calcined at high temperature by using a sagger to carry materials. Generally, a sagger is used to carry lithium carbonate and metal oxides for high-temperature reaction. Silicon dioxide and amphoteric oxide aluminum oxide undergo a certain chemical reaction to produce glassy substances. The average consumption index of saggers at home and abroad is 200-300 kg per ton of positive electrode materials. Saggers are reused by cold and hot. It will be scrapped after 20-30 uses. [0003] At present, the yield of the preparation of the saggar is low, and the performance of the saggar is poor. Contents of the invention [0004] The object of the invention is to provide a method for preparing a high-temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/622C04B35/66F27D5/00
CPCC04B35/565C04B35/622C04B35/66C04B2235/3206C04B2235/3217C04B2235/3427C04B2235/3454F27D5/0012
Inventor 刘骏刘振华张海
Owner 湖南太子新材料科技有限公司