Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 11 m.t.
- Supply Capability:
- 10000000 m.t./month
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1.Structure of Calcined Bauxite Description
Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
2.Main Features of the Calcined Bauxite
Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum
hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .This removes moisture there. By increasing the alumina content,compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 84%to88%.The heating is carried out in rotary kilns.
3.Main usage of the Calcined Bauxite
(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc.
(2) precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
(3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780, chemical stability strong, and good physical properties.
4. Calcined Bauxite Images
5. Calcined Bauxite Specification
BRAND INDEX | High Alumina Brick for BF | Fire Clay Brick for BF | |||
GL-65 | GL-55 | GL-48 | ZGN-42 | GN-42 | |
Al2O3, % ≥ | 65 | 55 | 48 | 42 | 42 |
Fe2O3, %, ≤ | 2.0 | 2.0 | 2.0 | 1.6 | 1.7 |
AP % ≤ | 19 | 19 | 18 | 15 | 16 |
Refractoriness °C ≥ | 1790 | 1770 | 1750 | 1750 | 1750 |
PLC % | 0~-0.2 | 0~-0.2 | 0~-0.2 | 0~-0.2 | 0~-0.3 |
1500°C x 2h | 1450°C x 2h | ||||
CCS MPa ≥ | 58.8 | 58.8 | 49 | 58.8 | 49 |
0.2MPa RUL °C ≥ | 1500 | 1480 | 1450 | 1450 | 1430 |
6.FAQ of Calcined Bauxite
1). Q: Are you a factory or trading company?
A: We are a factory.
2). Q: Where is your factory located? How can I visit there?
A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!
3). Q: How can I get some samples?
A: Please connect me for samples
4). Q: Can the price be cheaper?
A: Of course, you will be offered a good discount for big amount.
- Q:What are the applications of refractory?
- Refractory usually refers to the inorganic non-metallic material, whose refractoriness is above 1580℃. And it can be used for necessary parts. You can search more information on the Internet. It can be used in ferrous metal metallurgy, chemical, ceramics and so on. Fire material generally refers to above 1580 ℃ refractoriness of inorganic material, where the material can be used in corrosion, the network is very strong look, we know that colored when the metallurgical, chemical-resistant ceramics, etc. of industrial production high temperature. Different things are needed in different industries.
- Q:What the fireproofing materialare of the refractory kettle and where they can be sold?
- Many places sell these. Nearly 10 years, can't brun when it is dry, adsorption. You can also baidu these materials. Heat transfer evenly, feldspar, clay and other raw materials with a ceramic products. Traditional casserole can not resist heat difference and also can withstand for 100 high temperature without crack. Aiming at the problem of traditional casserole, easy to crack and air permeability, people joined the spodumene on raw material, produce a high-temperature resistance casserole. It is produced after the high temperature burning makes an earthenware pot to keep the original advantages. Hebei has many places to sell these materials and is also relatively cheaper. The traditional casserole has features of not easy to transfer heat's quartz and slow cooling. Due to production technology and raw materials, it greatly improves the casserole' practicability after research and improvement.
- Q:What refractories have good mechanical property resistance and heat expansion and cold contraction property?
- Explain that where you use it for and what requirements you have. Follow-up: I use it in metallurgical furnaces with the features of strong stirring and acidic residue.
- Q:Where is the distributing center of refractory materials in China?
- The construction of Gongyi Chinese refractory chemical industry professional market is a street in Yongan to implement the spirit of the six plenary session of the four session of the Gongyi municipal Party committee, the adjustment of economic structure, an important step in developing the service industry out of the. First, to promote the rapid development of the third industry. Through the improvement of refractory trade logistics system, make Yongan do truly become the first-class refractories trade and logistics center, driven by the refractory industry from the production area to the exhibition, logistics field extension and transformation, become refractory chemical industry center, Yongan office to promote the optimizing and upgrading of economy. Two is to promote intensive land development. Through the integration of resources, the unified planning of the reserved land, intensive development according to the standard of the city, the introduction of powerful investors, construction of large-scale projects. Three is to further create a business atmosphere in Yongan. Refractory chemical professional market operation, will promote the overall development of Yongan to do business, increase the flow of people, logistics, information flow, capital flow, more to promote the rapid development of the third industry in Yongan office.Gongyi Chinese refractory chemical industry professional market completion, will further promote the development of Yongan street service industry, accelerate the pace of economic restructuring, will run the streets of industrial upgrading has played a great role in promoting. Yongan road street is unprecedented high spirited gesture, innovation and development opportunities, so that industrial upgrading and optimization of the pattern to accelerate the realization of, we are convinced that Yongan's tomorrow will be better!
- Q:What is glass furnace used high-grade refractory materials?
- It is said that building a furnace need 30 million? After the ignition, it can't be gone out. Only at the waste to maintenance?
- Q:How many kinds of refractory materials are there in the EI?
- I suggest that you contribute articles to foreign SCI journals for the odds are better, and generally the articles that fill the bill will not be rejected. The traditional refractory materials can contribute to EI journal. If being rejected by EI journal, you can also contribute to Russia's journal Industrial Ceramics and Refractories. I didn't contribute to the Journal of Wuhan University of Science and Technology, the receiving cycle is almost 3 to 4 months. Though the impact factor is low, domestic EI journal is not so good, it is still SCI journal. This is my own experience, please take my advice. The best journals are the Journal of the American Ceramic Society and the Journal of the European Ceramic Society, I heard that they are not bad. But the best domestic EI refractory material journal is the Journal of The Chinese Ceramic Society. It is very long, but if it belongs to your university, it is another pair of shoes. Journals now all want to have materials about functional ceramics, and they don't want Chinese articles, if your English is not well enough, you can choose Ceramics International and Japan Ceramics but they have strict manuscripts reviewing standards.
- Q:Why the corundum can be used as refractory
- It can resiatant to friction wear.The alumina material is a kind of neutral material with high temperature resistance, anti-acid, anti-corrosion, alkali resistance, and high hardness of corundum. The disadvantage is the poor thermal shock resistance, the main chemical composition of corundum is aluminium oxide and the melting point of corundum is 2080 degrees
- Q:What is the role of adding chromium oxide green in unshaped refractory materials
- Generally, less is added in corundum or corundum spinel refractory material, but it can significantly improve the material performance such as high temperature strength, erosion resistance, thermal and shock stability, etc.
- Q:The following statement is correct: artificial corundum has a high melting point and can be used as a high grade refractory material. The main component is silica dioxide
- Artificial corundum has high melting point and can be used as high-grade refractory material. The main component is silica, and the main component is aluminaThe chemist uses agate mortar friction solid reactant without solvent synthesis, the main component of agate is the main silicate is silicon dioxideThe early construction of the Three Gorges dam uses a lot of cement, which is made of silicate materialIn the summer, tourists wear by adding cuprous oxide silica made of glass color glasses to protect eyes [] color glasses is added to the material made of silver, it is now possible to have more advanced material, but the middle school stage is said with silver bromideIt sees light, decomposes easily, and combines easily, so use it.Solar cells can be made of silicon material, and its application is favorable to environmental protection and energy saving
- Q:Which fireproofing materials factory is the best in Xiangyang?
- Of course, it is "Lvchuang Construction Energy Saving Engineering Co., Ltd." in Xuzhou, which main products are A-level fireproofing thermal insulation boards. It has many projects. B1-level fireproof materials are polyphenyl boards, extruded sheets, phenolic foam boards, Polyurethane board, sea capacity building energy efficiency module. Flame retardant has been added to the sea capacity building energy efficiency modules which has a B1-level fireproofing performance. You can also add expanded glazed hollow beads to them if you are worried about the security.
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Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 11 m.t.
- Supply Capability:
- 10000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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