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Cordierite honeycomb ceramic and preparation method thereof

A cordierite honeycomb and ceramic technology, which is applied in the field of ceramic processing, can solve the problems of high firing temperature, complicated manufacturing process, and high cost, and achieve the effects of low firing temperature, low cost, and increased strength

Inactive Publication Date: 2017-02-15
揭阳恒成陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems of traditional cordierite honeycomb ceramics, such as complex manufacturing process, high cost and high firing temperature, the present invention provides a method of using natural magnesia minerals and clay as base material, adding a small amount of plasticizer, through high-temperature solid-state reaction, and simultaneously Synthesis and sintering, complete the manufacture of cordierite honeycomb ceramics at one time

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  • Cordierite honeycomb ceramic and preparation method thereof

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Embodiment 1

[0022] A kind of cordierite honeycomb ceramics is composed of base material and additive carboxymethyl cellulose, and the base material is chlorite MgO·Al 2 o 3 • 3SiO2 2 • 4H 2 O, clay Al 2 o 3 • 2SiO2 2 • 2H 2 O and quartz SiO 2 ; The weight percent of chlorite, clay and quartz in the base material is: chlorite 40%, clay 50%, quartz 10%; Main oxide in the described base material is: MgO, Al 2 o 3 , SiO 2 , the weight percentage of the main oxide is: MgO10%, Al 2 o 3 40%, SiO 2 50%.

[0023] The specific steps of the preparation method are as follows:

[0024] S1. Selection of raw materials: crush the hard base material chlorite, clay and quartz according to the formula, and then pass the crushed base material into the iron removal machine to remove the iron impurity ferric oxide;

[0025] S2, batching: batching the base material after step S1 according to the weight ratio of base material and additive carboxymethyl cellulose is 99%:1%, to form ceramic raw mater...

Embodiment 2

[0031] A kind of cordierite honeycomb ceramics is composed of base material and additive carboxymethyl cellulose, and the base material is chlorite MgO·Al 2 o 3 • 3SiO2 2 • 4H 2 O, clay Al 2 o 3 • 2SiO2 2 • 2H 2 O and quartz SiO 2 ; The percentage by weight of chlorite, clay and quartz in the base material is: 45% of chlorite, 50% of clay, 5% of quartz; in the base material, the main oxides are: MgO, Al 2 o 3 , SiO 2 , the weight percentage of main oxides is: MgO 14%, Al 2 o 3 31.5%, SiO 2 54.5%.

[0032] The specific steps of the preparation method are as follows:

[0033] S1. Selection of raw materials: crush the hard base material chlorite, clay and quartz according to the formula, and then pass the crushed base material into the iron removal machine to remove the iron impurity ferric oxide;

[0034] S2, batching: batching the base material after step S1 according to the weight ratio of base material and additive carboxymethyl cellulose is 99.5%:0.5%, to form ...

Embodiment 3

[0040] A kind of cordierite honeycomb ceramics is composed of base material and additive carboxymethyl cellulose, and the base material is chlorite MgO·Al 2 o 3 • 3SiO2 2 • 4H 2 O, clay Al 2 o 3 • 2SiO2 2 • 2H 2 O and quartz SiO 2 ; The weight percent of chlorite, clay and quartz in the base material is: chlorite 55%, clay 40%, quartz 5%; Main oxide in the described base material is: MgO, Al 2 o 3 , SiO 2 , the weight percentage of the main oxide is: MgO20%, Al 2 o 3 30%, SiO 2 50%.

[0041] The specific steps of the preparation method are as follows:

[0042] S1. Selection of raw materials: crush the hard base material chlorite, clay and quartz according to the formula, and then pass the crushed base material into the iron removal machine to remove the iron impurity ferric oxide;

[0043] S2, batching: batching the base material after step S1 according to the weight ratio of base material and additive carboxymethyl cellulose is 99.9%:0.1%, to form ceramic raw ma...

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Abstract

The invention belongs to the technical field of ceramic machining, and particularly relates to cordierite honeycomb ceramic and a preparation method thereof, in particular to cordierite honeycomb ceramic synthesized and sintered by using magnesium mineral and clay as base materials, and a preparation method thereof. The cordierite honeycomb ceramic prepared through the preparation method provided by the invention has excellent adsorbing and exchanging functions and good heat stability; meanwhile, the preparation method disclosed by the invention is simple in process, and by the preparation method, the sintering temperature is lowered and the energy consumption is reduced by about 20-25%.

Description

technical field [0001] The invention belongs to the technical field of ceramic processing, and in particular relates to a cordierite honeycomb ceramic and a preparation method thereof, in particular to synthesizing and sintering cordierite honeycomb ceramics and a preparation method thereof by using magnesia minerals and clay as base materials. Background technique [0002] At present, the porous ceramics used for automobile exhaust emission filtration at home and abroad are mostly Dong Qingshi honeycomb ceramics. Usually Dong Qingshi is first synthesized or directly selected from industrial pure Dong Qingshi, adding an appropriate amount of bonding machine, plasticizer, lubricant, and waxed, hot-pressed, dewaxed, and sintered, and the sintering of Dong Qingshi honeycomb ceramics The temperature is all at 1350°C. This kind of method has complex process, high energy consumption and high manufacturing cost. The invention provides a cordierite honeycomb ceramic which is synth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/195C04B38/00C04B35/636C04B35/634
CPCC04B35/195C04B35/634C04B35/6365C04B38/0006C04B2235/3418C04B2235/349C04B2235/9607
Inventor 陈瑶武李妙良徐端珍
Owner 揭阳恒成陶瓷科技有限公司
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