Raw Materials for Refractory:90% Round Kiln Calcined Bauxite for Alumina Industry
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1.Sepcification ,
AL2O3 90%min
Fe2O3 1.5%max
SiO2 4%max
TiO2 4%max
CaO+MgO 0.4%max
R2O 0.20%max
Moisture Absorption 3% max
Bulk Density 3.4g/cm3 min
2.Size200mesh,325mesh,100mesh,0-1mm,1-3mm,3-5mm and 5-8mm
3.Description
Bauxite is earthy mineral which consists mainly of Al2O3 , a kind of hydrated alumina containing impurities. According to the usage, It can be divided into the levels of Metallurgy, chemical industry, grinding, cement, and refractory. Clinker is pale yellow and dark grey. It is mainly used for high aluminum refractory material, and also can be used to make the fused corundum. Our materials of calcined bauxite is mainly D-K Style Bauxite Ore.
4.Specification,
Item | AL2O3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density | Moisture Absorption |
AL70 | ≥ 70 | ≤3.0 | ≤4.0 | ≤0.6 | ≤0.6 | ≥2.7 | ≤5 |
AL75 | ≥75 | ≤2.5 | ≤4.0 | ≤0.5 | ≤0.5 | ≥2.8 | ≤5 |
AL80 | ≥80 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.9 | ≤5 |
AL85 | ≥85 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.0 | ≤4 |
AL86 | ≥86 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.1 | ≤4 |
AL87 | ≥87 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.2 | ≤4 |
AL88 | ≥88 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 | ≤4 |
AL90 | ≥90 | ≤1.5 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.4 | ≤3 |
5.Material
Our material is from Yangquan, Shanxi,China. Yangguan bauxite ore have the best plasticity and adhesion. It can improve their product life.
Furnace and fuel,We have 6 shaft furnaces and use the gas for fuel. It can increase the temperature to fully burn, improve the bulk density and reduce impurities. In addition, using the gas can reduce the energy consumption, less CO2 emission for improvement of the work environment.
Annual supply, 60,000mt of calcined bauxite per year
Inspection standard,
GB/T17617-1998----Sampling of raw materials and unshaped products
GB/T 2999-2002----Determination of bulk density of granular materials
GB/T 6900-2006----Chemical analysis of alumina-silica refractories
GB-325782---- Methods for chemical analysis of bauxite
SN/T 0481.1~0481.6—1995----Methods for inspection of bauxite for export
YB/T5180-1993----High-lumina bauxite and hard clay impurities inspection methods
GB/T 15545-1995----Unshaped refractory--Packing, marking, transportation and storage
Application,
1, Aluminium metallurgy
2, Precision casting/Investment casting,
bauxite grog fines can be made into mold for precision casting.
3, Refractory, High alumina bauxite's refractoryiness can reach 1780oC. It is charactered by good chemical stability and mechanical performance.
4, Aluminium silicate refractory fiber, The high alumina bauxite grog can melt under 2000oC to 2200oC in the electric arc furnace.After a series of processing, it can become aluminium silicate refractory fiber, which can be made into fiber blanket, cloth, plate and so on
5, Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining performance.
6,Producing bauxite cement
7,Abrasives
8, Ceramics industry
9, Chemistry industry for all kinds of aluminium compound.
- Q:What are the characteristics of clay refractory materials?
- Refractory clay refers to the refractory clay and bauxite, whose refractoriness is over 1580℃, which can be used as refractory materials. Apart from high refractoriness, they can maintain stability of volume under high temperature conditions and has resistance to slag, the sudden cold and hot, and mechanical strength, so after calcination, it can be abnormal firm.
- Q:What are unshaped fire-resisitance materials?
- Refractory castable, refractory plastic material, usually classified according to construction and manufacture method, unfired bricks precast block, refractory pressed into material, refractory cast material, refractory coating, refractory ramming material there are many classification methods
- Q:What is unshaped refractory?
- Unshaped refractory is a mixture made of aggregate and powder, binder or other admixture. It can be used directly or after proper liquid mixing. The material is a new type of refractory material after calcination, the refractoriness of not less than 1580 DEG C unshaped refractory materials by various varieties, production method and use method thereof can be divided into concrete, pouring material, plastic, ramming material, gunning, casting material, coating material, dry ramming material fire, mud, all kinds of repairing materials (with asphalt surface patch charge, Ma Dingsha) also do not belong to the shape of the column.
- Q:What is the strength of high strength refractory material?
- With the help of high temperature and load, refractory material deforma to a certain degree of temperature from the beginning of deformation (load softening point), known as high temperature structural strength or high load softening temperature. It is a the ability to resist deformation ih high temperature and load at the same time. The nature of the high temperature is very improtant for selection of a furnace building materials under the effect of high temperature and force.
- Q:What are the materials of class A fire resistant window?
- Fixed class A fire resistant window should be made up of steel frame, steel casement, and fireproof glass. Fire windows, made up of steel frame, steel casement, and fireproof glass, refers to window that isolate and stop the fire from spreading. Fire window is named according to the main materials of the frame and casement. Window frame is made up of steel and casement wood, vise versa. I hope it is useful.
- Q:Can anyone tell me what is A-leve fireproof material?
- What you say is probably palstic! B-level means the fireproof rating is at B1-level because palstic material doesn't belong to fireproof materials. It only is fire?retardant. When wholesaling all kinds of insulation materials and construction, it need tos look at the names. B1-level refers to the fire endurance rating of the fireproof material, which is determined according to the fire resistance of the material. In addition, different parts of the material have different fire endurance ratings! You can download a "Specifications of Fireproof Design for Buildings" for further information!
- Q:How to distinguish the fire resistant level of construction materials?
- Building materials fire resistant level is divided into four levels, among which the first level is the highest, with strongest fire resistance; fourth level is the lowest with weakest fire resistance. Fire resistance level of buildings depends on combustion performance and fire endurance of the building components. The building components refer to a series of basic components such as the building walls, foundations, beams, columns, floors, stairs, ceiling, etc.
- Q:how does the fire endurance of first rate fire resistant window?
- the classes are different. class A window not less than 1.5 hours, and the time is short, class B window not less than 1 hours, with shorter time, Class C window not less than 0.5 hours.
- Q:Does anyone know the characteristics of refractory for glass kiln?
- Refractory is a kind of non-metallic material with refractoriness not less than 1580 ℃, which has better thermal shock resistance and chemical erosion resistance, low heat conductivity coefficient and low expansion coefficient. Refractoriness is the centigrade?temperature of refractory cone specimen wiyhout any load resisting high temperatures without melting down Refractory is widely used in industries like metallurgy, chemical, petroleum, machinery manufacturing, silicates, power, etc., which is mostly used in the metallurgical industry, accounting for 50% to 60% of total output.
- Q:What are the main characteristics of the sic refractories?
- 1. The usage temperature of silicon carbide refractory is generally 1760 ℃ 2. The silicon carbide refractories can withstand dramatic changes in temperature, and a good thermal shock resistance performance. To prevent the cracking or breaking of lining refractories. 3. Under the conditions of high or low temperature, it can withstand a certain compressive stress. 4. Under the conditions of high or low temperature, it can withstand friction. 5. It can withstand the huge hydraulic pressure or buoyancy of the metal. 6. It can also withstand the effect of furnace gases to prevent the infiltration of other refractories and reactions.
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Raw Materials for Refractory:90% Round Kiln Calcined Bauxite for Alumina Industry
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 25000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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