Raw Materials for Refractory:Refractory Grade Calcined Bauxite 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:
- 11111111 m.t/month
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Refractory Grade Calcined Bauxite of CNBM in China
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 of CNBM in China
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 of CNBM in China
1)The bauxite for aluminum industry in defense, aerospace, automotive, electrical, chemical, and daily supplies.
2) Bauxite clinker processed into fine powder and made after the casting mold. Used in military, aerospace, communications, instrumentation, machinery and medical equipment sector.
3)The bauxite can be used in refractory products. The refractoriness of high-alumina clinker is up to 1780°c. Its features are chemical stability strong, and physical properties of sound.
4)It can be raw material for alumina cement, abrasive materials and aluminum compounds.
4. Calcined Bauxite of CNBM in China Images
5. Calcined Bauxite Specification
Item | AL2O3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density |
GAL75 | ≥75 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.7 |
GAL80 | ≥80 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.8 |
GAL85 | ≥85 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.0 |
GAL86 | ≥86 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.1 |
GAL87 | ≥87 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.2 |
GAL88 | ≥88 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 |
GAL90 | ≥90 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.3 |
6.Our Service
1.We will keep the client informed about the cargo situation,from production time to the shipment.
2.We test samples picked up from the plant or loading port in our designated third party lab or SGS lab.We tes sample before every shipment to make sure each lot quality is good for our client.
3.As chinese governmental company,we are reliable.
7.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 characteristics do A grade external wall fireproofing material have?
- For characteristics of A grade external wall fireproofing material, its main raw material uses cold resistant and thermal insulated, environmental protection and energy saving material with good insulation, keeping the indoor temperature steady and making the environment more comfortable. It is several times better than other masonry in overall strength and resist capability, and it can also hang heavy objects such as air conditioners by directly nailing or installing expansion bolts. Single point hanging machine can withstand heavy objects with the weight of more than 45kg. It can also be directly fixed to the tiles, wallpaper, wooden plaques, paint, etc.
- Q:How to use fire-resistant soil?
- It can live with water, not too sticky. Don't be too thin. It's best to put the stove in the inner wall.
- Q:What are first rate fire resistant window materials?
- Natural environmental protection, non-poisoned, non-peculiar smell, non-radioactive; non-combustible, fireproofing, moisture-proof, corrosion-resistant; easy construction, lightweight, high strength, www. jsxsmy.
- Q:What are the raw materials of refractory?
- Refractory is mainly resistant to high temperature and fire. Sic refractories are widely used in refractory. I hope my answer will be helpful to you.
- Q:Is refractory material harmful to human body?
- The risk of mineral wool and glass fiber have cancer!
- Q:What are refractory materials?
- Refractories can be divided to two categories based on the shape and three categories according to the chemical nature of acidity, neutralily and alkalinity. Alkaline refractory materials are magnesia-carbon brick, magnesia chrome brick, calcium magnesium brick and magnesia-chrome bricks. Neutural refractory mateial are high alumina brick, corundum brick and clay brick. Case-hardened refractory materials are castable, ramming mass, gunning mix, coated mix, dry vibration material, etc.
- Q:How long is the fire-resistant time of fireproof wooden door?
- The fire-resistant time of fireproof wooden door is about 1 hour. Fireproof wooden door refers to the door whose door frames, skeleton of the door leaf, door panels are made of timber or timber work and fire endurance reaches the provisions of "GB50045-95 design of tall buildings for fire protection". Fireproof door is one of devices for fire?prevention and separation of the building, generally used on the firewall, entrance and exit between stairs pipe shaft opening, which plays an important role in the reduction of fire losses.
- Q:What's the heat conductivity coefficient of fire-resistant material?
- The heat conductivity coefficient of fire resistant material is related to bulk density and mainly related to the internal structure. Different materials have different structure and thermal conductivity and temperature . Carbonaceous material can be used for heat dissipation and reach more than 15. For thermal insulation it can be 0.00.
- Q:How to distinguish the fire resistant level of construction materials?
- There are 3 conditions for building components to reach fire endurance, namely: Loss of ability to support; loss of integrity; loss of fire insulation function. As long as one condition occurs, fire endurance is reached and the time before it is called fire endurance. 1), loss of ability to support: If the specimen bearing capacity and rigidity reduce, section area shrink, collapses or deformation exceeds specified numerical value because it cannot bear the load of original design under flame or high temperature, it loses the ability to support. 2), loss of integrity: It mainly refers to the thin wall separating component(such as stairs, windows,partitions, ceiling, etc.) burst or partially collapse under flame or high temperature, and penetrating?fracture or opening appears, and the reverse side even burn. For example, when the floor is under flame or at high temperature, the flame spread to the upper room, which indicates that the integrity has been damaged. 3), loss of fire insulation function: It mainly refers to that seperating components loses thermal insulation and excessive heat conduction. In experiment, if the average temperature of component unexposed surface exceeds 140 ℃, or if any spot at the unexposed surface exceed the initial temperature of 180 ℃, the component loses fire insulation function.
- Q:Who can tell me about the foundry refractory materials?
- The classification of refractories commonly used in casting and smelting: refractory bricks: siliceous bricks, high alumina bricks, corundum bricks, magnesia bricks, magnesia-alumina bricks, magnesia-carbon bricks,etc. shapeless refractory materials: ramming?mass, castable refractory, refractory cement, silica sand, magnesite, etc.
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Raw Materials for Refractory:Refractory Grade Calcined Bauxite of CNBM in China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 11 m.t
- Supply Capability:
- 11111111 m.t/month
OKorder Service Pledge
OKorder Financial Service
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