CN1807345A - Alumina base mullite homogeneous material preparation method - Google Patents
Alumina base mullite homogeneous material preparation method Download PDFInfo
- Publication number
- CN1807345A CN1807345A CN 200610017448 CN200610017448A CN1807345A CN 1807345 A CN1807345 A CN 1807345A CN 200610017448 CN200610017448 CN 200610017448 CN 200610017448 A CN200610017448 A CN 200610017448A CN 1807345 A CN1807345 A CN 1807345A
- Authority
- CN
- China
- Prior art keywords
- bauxite
- alumina
- coal gangue
- homogeneous material
- rare earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 27
- 239000003245 coal Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 18
- 229910001570 bauxite Inorganic materials 0.000 claims abstract 19
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims abstract 3
- 239000002131 composite material Substances 0.000 claims description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 4
- 238000001816 cooling Methods 0.000 claims 2
- 239000013078 crystal Substances 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 238000004321 preservation Methods 0.000 claims 2
- 238000005054 agglomeration Methods 0.000 claims 1
- 230000002776 aggregation Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 235000012054 meals Nutrition 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 abstract description 2
- -1 MgO compound Chemical class 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000007123 defense Effects 0.000 abstract 1
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 32
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000005995 Aluminium silicate Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 238000001238 wet grinding Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明提供了矾土基莫来石均质料的制备方法，该方法采用Ⅱ等高铝矾土和煤矸石为主要原料，二者的重量百分数为70－95％的高铝矾土5－30％的煤矸石外加0.25－1.00％的CeO2、La2O3或Y2O3稀土氧化物和MgO复合助烧结剂，需要时外加1－4％的活性氧化铝以降低烧结温度至1500－1600℃，制备出纯度较高的矾土基莫来石均质料，其气孔率≤3.0％、体积密度≥2.65g/cm3：本发明不仅提高产品档次和产品附加值，而且大幅提高高铝矾土资源利用率，且将部分煤矸石用于生产高档耐火材料，提高煤矸石经济效益，为高铝矾土和煤矸石资源的综合利用提供一较佳的途径和方法；用本发明制备的矾土基莫来石均质料，可广泛应用于冶金、玻璃、陶瓷、化学、电力、国防、燃气和水泥等工业上。The invention provides a preparation method of bauxite-based mullite homogeneous material. The method adopts high-bauxite II and coal gangue as main raw materials, and the weight percentage of the two is 70-95% of high-bauxite 5-30 % coal gangue plus 0.25-1.00% CeO 2 , La 2 O 3 or Y 2 O 3 rare earth oxide and MgO compound sintering aid, and 1-4% activated alumina to reduce the sintering temperature to 1500- At 1600°C, a high-purity bauxite-based mullite homogeneous material is prepared, with a porosity of ≤3.0% and a bulk density of ≥2.65g/cm 3 : the invention not only improves the product grade and added value of the product, but also greatly improves the high-alumina improve the utilization rate of bauxite resources, and use part of coal gangue to produce high-grade refractory materials, improve the economic benefits of coal gangue, and provide a better way and method for the comprehensive utilization of high alumina bauxite and coal gangue resources; Alumina-based mullite homogeneous material can be widely used in industries such as metallurgy, glass, ceramics, chemistry, electric power, national defense, gas and cement.
Description
Technical field: the present invention is the processing and manufacturing technical field of the mineral compound of refractory raw material, is specifically related to a kind of preparation method of alumina base mullite homogeneous material.
Background technology: mullite (mullite) is an aluminium silicate mineral, have character such as refractoriness height, good thermal shock, chemical resistance of concrete, creep resistance, refractoriness under load height, volume stability be good, be the ideal high grade refractory, it is industrial to be widely used in metallurgy, glass, pottery, chemistry, electric power, national defence, combustion gas and cement etc.
Alumina base mullite homogeneous material refers to directly take alumina as raw material, through certain technology and the suitable synthesis material with uniform composition, structure and performance that makes of high-temperature calcination.Its principal crystalline phase is mullite, Al
2O
3Content is 50-80%, has the character such as refractoriness height, good thermal shock, creep resistant, refractoriness under load height, volume stability be good, is desirable high grade refractory.But alumina raw generally contains higher impurity, and the mullite purity of preparation is lower, and its sintering temperature is generally very high simultaneously, at 1600-1750 ℃.
A kind of method of artificial mullite synthesizing is provided in the Chinese invention patent application of publication number for CN98101568.9, it is mainly take alumine, kaolin, clay, silica, aluminium oxide as raw material, adopt preroast and the wet extract technology of sending out, this complex process, requirement condition height, the cost height is difficult to realize large-scale production.
A kind of synthetic method of mullite material is provided in the Chinese invention patent application of publication number for CN200410061029.7, and it mainly utilizes section bar factory industrial sludge and ferroalloy plant silica fume, makes through high temperature sintering.
Provide a kind of method of utilizing aluminous fly-ash sintering mullite synthesizing in the Chinese invention patent application of publication number for CN200410009081.8.It mainly utilizes power plant's discarded object aluminous fly-ash to be raw material, and adds a small amount of alumine, sintering synthesizing series mullite product.
A kind of method with preparing high-purity mullite at low temperature by mechanochemical process is provided in the Chinese invention patent application of publication number for CN200510040142.1, it mainly utilizes kaolin and aluminium hydroxide or aluminum oxide to be raw material, since its require material grinding to median size less than 1～2 μ m, cost is higher, and its industrial utilization is restricted.
A kind of method of synthetic mullite is provided in the Chinese invention patent of publication number for CN1312237A, he is to be raw material with one or more materials in alumine, kaolin, clay, silica, the aluminum oxide, through selecting materials, mate, pulverizing, moulding, dry, burn till, cool off, the method synthetic mullite that burns till with kiln.The alumina content of its main raw material alumine requires greater than 77%, is the resource that alumina demand each side all competes, and is more and more nervous from now on.Its firing temperature is also to 1800 ℃, and too high firing temperature not only can't scale operation, and cost can be very high.
Summary of the invention:
In order to overcome the deficiency that exists in the above-mentioned mullite preparation, the purpose of this invention is to provide a kind of is main raw material with alumine and coal gangue, add auxiliary material to improve the purity of alumina base mullite, reduce the preparation method of the alumina base mullite homogeneous material of mullite firing temperature:
Technical scheme of the present invention realizes in the following manner:
A kind of preparation method of alumina base mullite homogeneous material: take alumine as and gangue as raw material, add the agent of rare earth oxide and MgO composite sintering knot, adopt wet method or semidry method mixed grinding even, be pressed into the piece material, dry, burn till: it is characterized in that:
The weight percentage of a, each raw material is:
The alumine of 70-95%
The coal gangue of 5-30%
The 0.25-1.00% rare earth oxide of alumine and gangue total amount and the agent of MgO composite sintering knot
Rare earth oxide: MgO (mass ratio)=3-1: 1, rare earth oxide is CeO
2, La
2O
3Or Y
2O
3
B, grind size＜0.088mm make the piece material, oven dry;
C, firing temperature are 1500-1600 ℃, are incubated 2-8 hour and burn till, and are cooled to room temperature and can make product.
Technical scheme of the present invention can also following manner realize:
A kind of preparation method of alumina base mullite homogeneous material: take alumine as and gangue as raw material, add the agent of rare earth oxide and MgO composite sintering knot, activated alumina, adopt wet method or semidry method mixed grinding even, be pressed into the piece material, dry, burn till: it is characterized in that:
The weight percentage of a, each raw material is:
The alumine of 70-95%
The coal gangue of 5-30%
The 0.25-1.00% rare earth oxide of alumine and gangue total amount and the agent of MgO composite sintering knot
The 1-4% activated alumina of alumine and coal gangue total amount
Rare earth oxide: MgO (mass ratio)=3-1: 1, rare earth oxide is CeO
2, La
2O
3Or Y
2O
3
B, grind size＜0.088mm make the piece material, oven dry;
C, firing temperature are 1500-1600 ℃, are incubated 2-8 hour and burn till, and are cooled to room temperature and can make product.
Described alumine is alumine or the muck raw material such as II, Al after its igloss
2O
3Content is 60-78%, TiO
2≤ 4.0%, Fe
2O
3≤ 2.5%.
Al after the described gangue igloss
2O
3Content is 40-46%, TiO
2≤ 1.0%, Fe
2O
3≤ 0.8%.
Described alumina base mullite homogeneous material: principal crystalline phase is mullite; Chemical composition: Al
2O
3Be 58-75%, TiO
2≤ 3.0%, Fe
2O
3≤ 2.0%; The porosity≤3.0%, bulk density 〉=2.65g/cm
3
The invention has the advantages that:
The present invention with abundant idle mostly of China or alumine such as the II that piles up of going out of use and muck be main raw material, coal gangue also is the waste material of Coal Production association.This invention can improve the alumine resource utilization, makes the part coal gangue be used to produce high-grade refractory raw material, improves money former utilization ratio and added value of product.
2. by in alumine, adding an amount of gangue, and add activated alumina when needing and prepare stable components, the relatively low mullite of impurity content.
3. by adding the agent of rare earth oxide and MgO composite sintering knot, the sintering temperature of alumina base mullite homogeneous material can be down to 1500-1600 ℃ from 1650-1750 ℃, keeping simultaneously its load softening point is 1500-1650 ℃, is conducive to suitability for industrialized production.
4. the present invention utilizes the synthetic alumina base mullite homogeneous material of alumine resource of China, not only improve product specification and added value of product, and significantly improve the alumine resource utilization, and with the part gangue for the production of high-grade refractory material, improve the gangue economic benefit, for the comprehensive utilization of alumine and Coal Gangue Resource provides a better approaches and methods.
Specific implementation method:
Below in conjunction with example the present invention is further described, but is not limited to the following example.
Embodiment 1: plant experiment
With Dengfeng, Henan alumine and shanxi coal spoil is raw material, and its composition is shown in table 2.
The alumine of Dengfeng, table 1 Henan and the gangue chemical composition in Shanxi
| Component | Al 2O 3 | SiO 2 | Fe 2O 3 | TiO 2 | R 2O | Igloss |
| Alumine | 66.84 | 12.50 | 1.62 | 3.01 | 0.39 | 14.12 |
| Gangue | 37.41 | 42.60 | 0.30 | 0.49 | 0.08 | 17.65 |
Experimental size is 100Kg; Specific as follows:
76 parts of alumines and 24 parts of gangues are positioned in the ball grinder, wet-milling to granularity less than below the 0.044mm, add the 0.35% composite sintering knot agent of alumine and gangue total amount after the oven dry, in the complexing agent: CeO
2With the mass ratio of MgO be 3: 1, dry after the compression moulding;
Above-mentioned molding mass piece is put into the Industrial Stoves sintering, and sintering temperature is 1600 ℃, is incubated 6 hours.Naturally cool to room temperature then and take out, obtain alumina base mullite homogeneous material.
Through XRD analysis, the principal crystalline phase of product is mullite, and content is greater than 95%; The performance of mullite homogeneous material: AL
2O
3Content 69.80%, TiO
2Content 2.8%, Fe
2O
3Content 1.55%, the porosity 1.5%, bulk density 2.84g/cm
3
Embodiment 2
With alumine and coal gangue is raw material, and its composition is shown in table 2.
Table 2 alumine and gangue chemical composition
| Component | Al 2O 3 | SiO 2 | Fe 2O 3 | TiO 2 | R 2O | Igloss |
| Alumine | 53.57 | 26.00 | 1.81 | 2.73 | 0.32 | 14.43 |
| Gangue | 33.90 | 47.80 | 0.38 | 0.52 | 0.07 | 16.05 |
With 88 parts of alumines and 12 parts of gangues, add the 0.75% composite sintering knot agent of alumine and gangue total amount, composite sintering knot agent La
2O
3With the mass ratio of MgO be 1: 1, be positioned in the ball grinder wet-milling to 0.044mm, squeeze the mud moulding after, lower dry 24 hours at 110 ℃;
Above-mentioned molding mass piece is put into the kiln sintering, and sintering temperature is 1550 ℃, is incubated 3 hours.Naturally cool to room temperature then and take out, obtain alumina base mullite homogeneous material.
Through XRD analysis, the principal crystalline phase of product is a mullite, and content is greater than 95%.Al
2O
3Content 59.50%, TiO
2Content 2.88%, Fe
2O
3Content 1.92%, the porosity 2.0% of homogeneous material, bulk density 2.68g/cm
3
Embodiment 3
With alumine and coal gangue is raw material, and its composition is shown in table 2.
Table 2 alumine and gangue chemical composition
| Component | Al 2O 3 | SiO 2 | Fe 2O 3 | TiO 2 | R 2O | Igloss |
| Alumine | 63.49 | 15.72 | 1.82 | 3.06 | 0.26 | 14.18 |
| Gangue | 36.20 | 47.46 | 0.41 | 0.53 | 0.15 | 15.46 |
Experimentize at certain refractory factory, experimental size is 5000Kg.Specific as follows: as after 82 parts of alumines and 18 parts of gangues are mixed, to add 2% activated alumina and the agent of 1% composite sintering knot of alumine and gangue total amount, Y in the agent of composite sintering knot
2O
3With the mass ratio of MgO be 1: 2, put into the ball mill wet-milling to 0.044mm, then wet method extrusion modling after the oven dry, is put into the kiln sintering, sintering temperature is 1520 ℃, is incubated 8 hours.Naturally cool to room temperature then and take out, obtain alumina base mullite homogeneous material.
Through XRD analysis, the principal crystalline phase of product is a mullite, and content is greater than 95%.Al
2O
3Content 68.40%, TiO
2Content 2.90%, Fe
2O
3Content 1.81%, the porosity 1.0% of homogeneous material, bulk density 2.80g/cm
3
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610017448XA CN1326804C (en) | 2006-02-22 | 2006-02-22 | Alumina base mullite homogeneous material preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610017448XA CN1326804C (en) | 2006-02-22 | 2006-02-22 | Alumina base mullite homogeneous material preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1807345A true CN1807345A (en) | 2006-07-26 |
| CN1326804C CN1326804C (en) | 2007-07-18 |
Family
ID=36839465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610017448XA Expired - Fee Related CN1326804C (en) | 2006-02-22 | 2006-02-22 | Alumina base mullite homogeneous material preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1326804C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593577C (en) * | 2008-02-29 | 2010-03-10 | 上海大学 | BCC structure hydrogen-storing alloy with flat pressure platform |
| CN101265118B (en) * | 2008-04-26 | 2010-04-07 | 孝义市京山耐火材料有限公司 | Micro-pore mullite lightweight aggregate and preparation method thereof |
| CN101691285B (en) * | 2009-10-22 | 2012-03-07 | 洛阳大泽节能环保科技有限公司 | Efficient composite cement sintering agent |
| CN103265268A (en) * | 2013-06-09 | 2013-08-28 | 尤潘垦 | Preparation method and device of toughened ceramic |
| CN103496708A (en) * | 2013-09-24 | 2014-01-08 | 武汉科技大学 | Raw material for synthesizing mullite and preparation method thereof |
| CN104725061A (en) * | 2015-03-16 | 2015-06-24 | 通达耐火技术股份有限公司 | Wear-resisting ramming and smearing material for waste heat power generation of cement kiln |
| CN110451996A (en) * | 2019-08-26 | 2019-11-15 | 湖南德景源科技有限公司 | Lithium electricity saggar mullite preparation process |
| CN115010504A (en) * | 2022-05-11 | 2022-09-06 | 郑州大学 | Method for preparing high-strength bauxite-based mullite homogeneous material by two-step method |
| CN115490526A (en) * | 2022-10-20 | 2022-12-20 | 山东国材工程有限公司 | Method for preparing mullite refractory material by using coal gangue as raw material |
| CN117466635A (en) * | 2023-12-28 | 2024-01-30 | 天津包钢稀土研究院有限责任公司 | Method for preparing dense mullite from rare earth modified gangue |
| CN117486225A (en) * | 2023-12-28 | 2024-02-02 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111093C (en) * | 2000-02-25 | 2003-06-11 | 上海交通大学 | Mullite-like cellular ceramic carrier |
-
2006
- 2006-02-22 CN CNB200610017448XA patent/CN1326804C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593577C (en) * | 2008-02-29 | 2010-03-10 | 上海大学 | BCC structure hydrogen-storing alloy with flat pressure platform |
| CN101265118B (en) * | 2008-04-26 | 2010-04-07 | 孝义市京山耐火材料有限公司 | Micro-pore mullite lightweight aggregate and preparation method thereof |
| CN101691285B (en) * | 2009-10-22 | 2012-03-07 | 洛阳大泽节能环保科技有限公司 | Efficient composite cement sintering agent |
| CN103265268A (en) * | 2013-06-09 | 2013-08-28 | 尤潘垦 | Preparation method and device of toughened ceramic |
| CN103265268B (en) * | 2013-06-09 | 2014-06-11 | 尤潘垦 | Preparation method and device of toughened ceramic |
| CN103496708A (en) * | 2013-09-24 | 2014-01-08 | 武汉科技大学 | Raw material for synthesizing mullite and preparation method thereof |
| CN103496708B (en) * | 2013-09-24 | 2015-03-04 | 武汉科技大学 | Raw material for synthesizing mullite and preparation method thereof |
| CN104725061A (en) * | 2015-03-16 | 2015-06-24 | 通达耐火技术股份有限公司 | Wear-resisting ramming and smearing material for waste heat power generation of cement kiln |
| CN110451996A (en) * | 2019-08-26 | 2019-11-15 | 湖南德景源科技有限公司 | Lithium electricity saggar mullite preparation process |
| CN110451996B (en) * | 2019-08-26 | 2022-02-22 | 湖南德景源科技有限公司 | Preparation process of mullite for lithium battery sagger |
| CN115010504A (en) * | 2022-05-11 | 2022-09-06 | 郑州大学 | Method for preparing high-strength bauxite-based mullite homogeneous material by two-step method |
| CN115010504B (en) * | 2022-05-11 | 2022-12-30 | 郑州大学 | Method for preparing high-strength bauxite-based mullite homogeneous material by two-step method |
| CN115490526A (en) * | 2022-10-20 | 2022-12-20 | 山东国材工程有限公司 | Method for preparing mullite refractory material by using coal gangue as raw material |
| CN115490526B (en) * | 2022-10-20 | 2023-03-21 | 山东国材工程有限公司 | Method for preparing mullite refractory material by using coal gangue as raw material |
| CN117466635A (en) * | 2023-12-28 | 2024-01-30 | 天津包钢稀土研究院有限责任公司 | Method for preparing dense mullite from rare earth modified gangue |
| CN117486225A (en) * | 2023-12-28 | 2024-02-02 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
| CN117466635B (en) * | 2023-12-28 | 2024-03-08 | 天津包钢稀土研究院有限责任公司 | Method for preparing dense mullite from rare earth modified gangue |
| CN117486225B (en) * | 2023-12-28 | 2024-03-29 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1326804C (en) | 2007-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1807345A (en) | Alumina base mullite homogeneous material preparation method | |
| CN106145976B (en) | Andalusite-mullite-silicon carbide brick for cement kiln and preparation method thereof | |
| CN1850682A (en) | Method for preparing porose glass composite material using iron ore tailings | |
| CN108975923B (en) | Ceramic roller rod with thermal shock resistance and high-temperature volume stability and preparation method thereof | |
| CN108083765B (en) | Low-heat-conduction anti-stripping brick and preparation method thereof | |
| CN111620679A (en) | Method for preparing high-purity mullite material by taking fused silica as silicon source | |
| CN101428808B (en) | Method for synthesizing dichroite with solid castoff | |
| CN108276017A (en) | It is a kind of to utilize corundum-silicon carbide whisker composite ceramic material and preparation method thereof that natural minerals are raw material | |
| CN101074161A (en) | Aluminum titanate-mullite cellular ceramic and its production | |
| CN1837151A (en) | MgO-CaO-ZrO2 brick for high temperature zone of cement kiln and its manufacturing method | |
| CN1631838A (en) | Preparation method of refractory casting material | |
| CN1696075A (en) | A method of sintering and combining high alumina fly ash to synthesize mullite | |
| CN111302769A (en) | Low-aluminum-magnesium composite unburned brick and preparation method thereof | |
| CN110963807A (en) | Energy-saving mullite refractory brick for cement kiln transition zone and preparation method thereof | |
| CN1887785A (en) | Process of preparing magnesia Allen ceramic material with waste magnesia carbon brick and magnesia alumina carbon brick | |
| CN1850596A (en) | Method for preparing SiC complex-phase material utilizing iron ore tailings | |
| CN1303036C (en) | Process for preparing high strength corundum refractory material by low temperature sintering | |
| CN112897994A (en) | Preparation method of corundum spinel complex phase material | |
| CN107840638A (en) | A kind of porcelain aluminium abrasive brick and preparation method thereof | |
| CN115010504B (en) | Method for preparing high-strength bauxite-based mullite homogeneous material by two-step method | |
| CN107382345B (en) | A kind of preparation method of micro-nano spinel toughened MgO-MA aggregate | |
| CN115231580B (en) | A method for preparing forsterite and magnesia by sintering fine granular magnesite flotation tailings | |
| CN1305808C (en) | Process for preparation of self-spread high-temperature synthesizing low-cost diphase alpha/beta-sialon powder | |
| CN108285350A (en) | A kind of tri compound SiC based refractories and preparation method thereof | |
| CN101768004B (en) | Low-pore in situ oriental topaz brick and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zibo Xinnaida Refractory Material Co., Ltd. Assignor: Zhengzhou University Contract fulfillment period: 2007.8.9 to 2012.8.10 contract change Contract record no.: 2009370000152 Denomination of invention: Alumina base mullite homogeneous material preparation method Granted publication date: 20070718 License type: Exclusive license Record date: 2009.7.9 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.8.9 TO 2012.8.10; CHANGE OF CONTRACT Name of requester: ZIBO XINNAIDA REFRACTORIES CO., LTD. Effective date: 20090709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20150222 |
|
| EXPY | Termination of patent right or utility model |