Cordierite ceramic synthesized from ceramic whiteware waste, and preparation method thereof

A technology for synthesizing cordierite and cordierite, which is applied in the field of automobile exhaust gas purification device materials or catalyst carrier materials, and refractory materials. It can solve the problems of difficult comprehensive treatment of solid waste and high cost of raw materials, achieve fine and uniform pore size distribution, and reduce production costs. Effect

Inactive Publication Date: 2017-03-22
FUJIAN DEHUA RONGXIN CERAMICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of difficult comprehensive treatment of solid waste in the production of white porcelain and the high cost of raw materials in the existing technology of synthesizing cordierite materials, the present invention provides a method for synthesizing cordierite ceramics and porous materials from white porcelain waste The preparation method, which can maximize the utilization of ceramic industrial waste on the premise of ensuring high-purity cordierite, realize the high value-added recycling of industrial solid waste, significantly reduce the production cost of cordierite materials, and expand the application field

Method used

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  • Cordierite ceramic synthesized from ceramic whiteware waste, and preparation method thereof
  • Cordierite ceramic synthesized from ceramic whiteware waste, and preparation method thereof
  • Cordierite ceramic synthesized from ceramic whiteware waste, and preparation method thereof

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specific Embodiment 1

[0021] A method of synthesizing cordierite ceramics by using white porcelain waste. The raw materials include white porcelain waste, waste refractory materials, kaolin, and talc.

[0022] The above-mentioned preparation method for synthesizing cordierite ceramics by using white porcelain waste materials, the specific steps are as follows:

[0023] Step 1, according to the composition of the raw material formula, the raw material is wet-milled in a ball mill for 0.5 hours, the grinding medium is water, and the raw material: ball: water = 1:1.5:0.8;

[0024] Step 2, the ground slurry is filtered and dehydrated, put into a drying oven at 105°C for 12 hours, crushed and passed through a 100-mesh sieve;

[0025] Step 3, mixing the powder with a binder of 5% polyvinyl alcohol aqueous solution, molding under a pressure of 14MPa, and putting the molding blank into a drying oven at 105°C for 12 hours;

[0026] Step 4, the dry compact is placed in a kiln and fired at a high temperature...

specific Embodiment 2

[0032] A method of synthesizing cordierite ceramics by using white porcelain waste, the raw materials include white porcelain waste 21, waste refractory material 22, kaolin 30, calcined talc 27, and pore-forming agent 10;

[0033] The pore-forming agent in this embodiment is graphite, and in addition, the pore-forming agent can be selected from materials that can be thermally decomposed such as starch and polymer microspheres;

[0034] The above-mentioned preparation method for synthesizing cordierite ceramics by using white porcelain waste materials, the specific steps are as follows:

[0035] Step 1, according to the composition of the raw material formula, the raw material is wet-milled in a ball mill for 0.5 hours, the grinding medium is water, and the raw material: ball: water = 1:1.5:0.8;

[0036] Step 2, the ground slurry is filtered and dehydrated, put into a drying oven at 105°C for 12 hours, crushed and passed through a 100-mesh sieve;

[0037] Step 3, the powder is...

specific Embodiment 3

[0041] A method of synthesizing cordierite ceramics by using white porcelain waste. The raw materials include white porcelain waste 30 , waste refractory material 20 , kaolin 29 , and calcined talc 21 .

[0042] The above-mentioned preparation method for synthesizing cordierite ceramics by using white porcelain waste materials, the specific steps are as follows:

[0043] Step 1, according to the raw material formula composition batching, the raw material composition is prepared according to the following weight ratio;

[0044] Step 2, the raw material is wet-milled in a ball mill for 0.5 hour, the grinding medium is water, raw material: ball: water = 1:1.5:0.8;

[0045] Step 3: Select a polymer sponge foam suitable for porosity, and place it in the cavity of a stainless steel cuboid mold. Pour the ground slurry into the mold cavity with a built-in polymer sponge foam for impregnation. In order to ensure that the slurry fully fills the pores , in order to ensure that the slurry ...

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Abstract

The invention relates to a cordierite ceramic synthesized from ceramic whiteware waste, and a preparation method of a porous material. The raw materials used for synthesizing cordierite ceramic from ceramic whiteware waste comprise ceramic whiteware waste, a waste refractory matter, kaolin, and presintered talc. According to the preparation method, the cordierite porous material can be synthesized via adding a pore-foaming agent into the raw materials and combination of macromolecule foam dip forming method. The cordierite ceramic synthesized from ceramic whiteware waste is high in cordierite ceramic purity, bending strength, and volume density, the cordierite porous material with different porosity can be obtained based on requirements, solid waste comprehensive utilization is realized, and environment protection value and economic benefits are high.

Description

technical field [0001] The invention belongs to the field of refractory materials, automobile tail gas purification device materials or catalyst carrier materials. Specifically, the invention relates to a preparation method for synthesizing cordierite ceramics and porous materials by using white porcelain waste. Background technique [0002] With the rapid development of social economy and ceramic industry, my country's demand for architectural ceramics, sanitary ceramics, and daily-use ceramics continues to increase, and its output ranks first in the world. The preparation of ceramic materials requires high-temperature firing, which will generate a large amount of ceramic waste, mainly including ceramic product waste and refractory material waste. Taking the famous ceramic capital of Dehua County, Fujian Province as an example, tens of thousands of tons of ceramic waste can be produced every year. Due to the high-temperature firing, the ceramic waste is extremely hard and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B35/195C04B35/622
CPCC04B35/195C04B35/622C04B35/62204C04B38/067C04B38/068C04B2235/349C04B2235/77C04B2235/96C04B38/0074C04B38/0067
Inventor 花能斌刘荣斌
Owner FUJIAN DEHUA RONGXIN CERAMICS CO LTD
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