CN103508746A - High-purification-rate cordierite honeycomb ceramic and preparation method thereof - Google Patents
High-purification-rate cordierite honeycomb ceramic and preparation method thereof Download PDFInfo
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- CN103508746A CN103508746A CN201210200522.7A CN201210200522A CN103508746A CN 103508746 A CN103508746 A CN 103508746A CN 201210200522 A CN201210200522 A CN 201210200522A CN 103508746 A CN103508746 A CN 103508746A
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- honeycomb ceramic
- cordierite honeycomb
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- stearic acid
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Abstract
The invention discloses high-purification-rate cordierite honeycomb ceramic. The ceramic is composed of the components of, by weight: 30-50 parts of cordierite, 2-6.4 parts of yttria, 2-8 parts of ceria, 6-18 parts of clay, 8-16 parts of talc powder, 1-5 parts of stearic acid, and 8-16 parts of deionized water. Compared with prior art, the high-purification-rate cordierite honeycomb ceramic is prepared with rare earth metal, such that cost is low, and purification rate is high. Also, the ceramic has the advantages of high-temperature resistance and long service life. The ceramic can be used under a temperature of 1500-1700 DEG C. The preparation process is simple, and sintering temperature is reduced, such that energy-saving and consumption-reducing purposed can be achieved.
Description
Technical field
The invention belongs to ceramic field, relate in particular to a kind of high purification rate cordierite honeycomb ceramic and preparation method thereof.
Background technology
The raising to automobile exhaust emission standard with various countries that increases considerably along with car owning amount, treating vehicle exhaust more and more comes into one's own, the three-element catalytic technology that the ceramic honey comb of wherein take is carrier is considered to effective and the most feasible improvement technology at present, and it can change hydrocarbon polymer harmful in tail gas, oxynitride and carbon monoxide into nontoxic carbonic acid gas, nitrogen G&W simultaneously.For this reason, people are deepening constantly the research of three-element catalytic technology, to improve the cost of processing efficiency and reduction catalyzer.
At present topmost automobile catalyst factory also all adopts the formula of precious metal system in the world.At these, take in the catalyzer that precious metal is active component, the content of precious metal is all higher, and general bullion content can reach every liter more than 1.0 grams.Because the resource of precious metal is in the world very limited, expensive, therefore, adopt the technology of precious metal in large-scale application, to be subject to certain restriction.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency, and technical problem to be solved is to provide a kind of high purification rate cordierite honeycomb ceramic.
The technical problem that the present invention also will solve is to provide the preparation method of above-mentioned high purification rate cordierite honeycomb ceramic.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A purification rate cordierite honeycomb ceramic, it is comprised of the component of following parts by weight:
30～50 parts of trichroites
2～6.4 parts of yttrium oxides
2～8 parts of cerium dioxides
Clay 6-18 part
Talcum powder 8-16 part
Stearic acid 1-5 part
Deionized water 8-16 part.
Wherein, as screening formulation, it is comprised of the component of following parts by weight:
40 parts of trichroites
4.2 parts of yttrium oxides
5 parts of cerium dioxides
12 parts of clays
12 parts of talcum powder
3 parts of stearic acid
12 parts of deionized waters.
The method of preparing above-mentioned high purification rate cordierite honeycomb ceramic, it comprises the steps:
1, press formula ratio, get after trichroite, yttrium oxide, cerium dioxide, clay, talcum powder batching carry out ball milling, batch mixing, to be crushed to 300～400 orders standby;
2, the stearic acid of formula ratio, deionized water are added in raw material standby in step 1, mix latter old 24 hours and obtain pug;
3, pug is put into vacuum pugmill and carried out after mud refining, then put into single-lead-screw extruding briquetting machine moulding;
4, the hygrometric state honeycomb ceramic body of extrusion molding is put into stove dryness finalization and become dry body;
5, honeycomb ceramic body dry body is put into calcining furnace, at 1300～1400 ℃ of temperature, be incubated 2～3 hours;
6, cooling coming out of the stove.
Beneficial effect: high purification rate cordierite honeycomb ceramic of the present invention is compared compared with prior art, employing rare earth metal is made, not only cheap, and there is higher purification rate, also have advantages of high temperature resistant, long service life simultaneously, can at 1500～1700 ℃ of temperature, use, its preparation technology is simple, firing temperature declines, and can reach energy-saving and cost-reducing object.
Embodiment
Embodiment 1:
A purification rate cordierite honeycomb ceramic, it is comprised of the component of following parts by weight:
40 parts of trichroites
4.2 parts of yttrium oxides
5 parts of cerium dioxides
12 parts of clays
12 parts of talcum powder
3 parts of stearic acid
12 parts of deionized waters.
The method of preparing above-mentioned high purification rate cordierite honeycomb ceramic, it comprises the steps:
1, press formula ratio, get after trichroite, yttrium oxide, cerium dioxide, clay, talcum powder batching carry out ball milling, batch mixing, to be crushed to 300～400 orders standby;
2, the stearic acid of formula ratio, deionized water are added in raw material standby in step 1, mix latter old 24 hours and obtain pug;
3, pug is put into vacuum pugmill and carried out after mud refining, then put into single-lead-screw extruding briquetting machine moulding;
4, the hygrometric state honeycomb ceramic body of extrusion molding is put into stove dryness finalization and become dry body;
5, honeycomb ceramic body dry body is put into calcining furnace, at 1300～1400 ℃ of temperature, be incubated 2～3 hours;
6, cooling coming out of the stove.
Embodiment 2:
A purification rate cordierite honeycomb ceramic, it is comprised of the component of following parts by weight:
30 parts of trichroites
2 parts of yttrium oxides
2 parts of cerium dioxides
6 parts of clays
8 parts of talcum powder
1 part of stearic acid
8 parts of deionized waters.
The method of preparing above-mentioned high purification rate cordierite honeycomb ceramic, it comprises the steps:
1, press formula ratio, get after trichroite, yttrium oxide, cerium dioxide, clay, talcum powder batching carry out ball milling, batch mixing, to be crushed to 300～400 orders standby;
2, the stearic acid of formula ratio, deionized water are added in raw material standby in step 1, mix latter old 24 hours and obtain pug;
3, pug is put into vacuum pugmill and carried out after mud refining, then put into single-lead-screw extruding briquetting machine moulding;
4, the hygrometric state honeycomb ceramic body of extrusion molding is put into stove dryness finalization and become dry body;
5, honeycomb ceramic body dry body is put into calcining furnace, at 1300～1400 ℃ of temperature, be incubated 2～3 hours;
6, cooling coming out of the stove.
Embodiment 3:
A purification rate cordierite honeycomb ceramic, it is comprised of the component of following parts by weight:
50 parts of trichroites
6.4 parts of yttrium oxides
8 parts of cerium dioxides
18 parts of clays
16 parts of talcum powder
5 parts of stearic acid
16 parts of deionized waters.
The method of preparing above-mentioned high purification rate cordierite honeycomb ceramic, it comprises the steps:
1, press formula ratio, get after trichroite, yttrium oxide, cerium dioxide, clay, talcum powder batching carry out ball milling, batch mixing, to be crushed to 300～400 orders standby;
2, the stearic acid of formula ratio, deionized water are added in raw material standby in step 1, mix latter old 24 hours and obtain pug;
3, pug is put into vacuum pugmill and carried out after mud refining, then put into single-lead-screw extruding briquetting machine moulding;
4, the hygrometric state honeycomb ceramic body of extrusion molding is put into stove dryness finalization and become dry body;
5, honeycomb ceramic body dry body is put into calcining furnace, at 1300～1400 ℃ of temperature, be incubated 2～3 hours;
6, cooling coming out of the stove.
Claims (3)
1. a high purification rate cordierite honeycomb ceramic, is characterized in that its being comprised of following parts by weight:
30～50 parts of trichroites
2～6.4 parts of yttrium oxides
2～8 parts of cerium dioxides
Clay 6-18 part
Talcum powder 8-16 part
Stearic acid 1-5 part
Deionized water 8-16 part.
2. high purification rate cordierite honeycomb ceramic according to claim 1, is characterized in that it is comprised of following parts by weight:
40 parts of trichroites
4.2 parts of yttrium oxides
5 parts of cerium dioxides
12 parts of clays
12 parts of talcum powder
3 parts of stearic acid
12 parts of deionized waters.
3. a method of preparing high purification rate cordierite honeycomb ceramic described in claim 1, is characterized in that it comprises the steps:
(1) press formula ratio, get after trichroite, yttrium oxide, cerium dioxide, clay, talcum powder batching carry out ball milling, batch mixing, to be crushed to 300～400 orders standby;
(2) stearic acid of formula ratio, deionized water are added in raw material standby in step (1), mix latter old 24 hours and obtain pug;
(3) pug is put into vacuum pugmill and carried out after mud refining, then put into single-lead-screw extruding briquetting machine moulding;
(4) the hygrometric state honeycomb ceramic body of extrusion molding is put into stove dryness finalization and become dry body;
(5) honeycomb ceramic body dry body is put into calcining furnace, at 1300～1400 ℃ of temperature, be incubated 2～3 hours;
(6) cooling coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200522.7A CN103508746A (en) | 2012-06-18 | 2012-06-18 | High-purification-rate cordierite honeycomb ceramic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200522.7A CN103508746A (en) | 2012-06-18 | 2012-06-18 | High-purification-rate cordierite honeycomb ceramic and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN103508746A true CN103508746A (en) | 2014-01-15 |
Family
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| CN201210200522.7A Withdrawn CN103508746A (en) | 2012-06-18 | 2012-06-18 | High-purification-rate cordierite honeycomb ceramic and preparation method thereof |
Country Status (1)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171379A (en) * | 1996-07-01 | 1998-01-28 | 宇部兴产株式会社 | Ceramic composite material and porous ceramic material |
| WO2009005679A1 (en) * | 2007-06-28 | 2009-01-08 | Corning Incorporated | High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same |
| CN102046561A (en) * | 2008-05-30 | 2011-05-04 | 康宁股份有限公司 | Low back pressure porous honeycomb and method for producing the same |
| CN102690117A (en) * | 2006-06-30 | 2012-09-26 | 康宁股份有限公司 | Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same |
-
2012
- 2012-06-18 CN CN201210200522.7A patent/CN103508746A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171379A (en) * | 1996-07-01 | 1998-01-28 | 宇部兴产株式会社 | Ceramic composite material and porous ceramic material |
| CN102690117A (en) * | 2006-06-30 | 2012-09-26 | 康宁股份有限公司 | Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same |
| WO2009005679A1 (en) * | 2007-06-28 | 2009-01-08 | Corning Incorporated | High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same |
| CN101687713A (en) * | 2007-06-28 | 2010-03-31 | 康宁股份有限公司 | The high porosity ceramic honeycomb article and the manufacture method thereof that comprise rare earth oxide |
| CN102046561A (en) * | 2008-05-30 | 2011-05-04 | 康宁股份有限公司 | Low back pressure porous honeycomb and method for producing the same |
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Application publication date: 20140115 |