Refractory Grade Calcined Bauxite 87% Powder
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- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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Refractory Grade Calcined Bauxite 87% Powder
Calcined Bauxite Introduction
Property | Specifications |
Name | aluminous soil ; bauxite |
Color | White, offwhite, auburnish yellow or light red (with Fe) |
Bulk Density | 2.55~3.6 g/cm3 |
Hardness | 1~3 |
Main usages | 1. Aluminium metallurgy 2.Refractory |
Calcined Bauxite Specifications
Grade | AL2O3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density |
75 | 75min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.70 |
80 | 80min | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.80 |
85 | 85min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.00 |
86 | 86min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.10 |
87 | 87min | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.20 |
88 | 88min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 |
90 | 90min | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 |
Calcined Bauxite Applications
1. Refractory: high alumina bauxite’s refractoriness can reach 1780°C.
It is charactered by good chemical stability and mechanical performance. (Al2O3 ≥48% with low Fe2O3)
2. Aluminium silicate refractory fiber: The high alumina bauxite grog can melt under 2000°C-2200°C in the electric arc furnace.After a series of processing, it can become aluminium silicate refractory fiber,
which can be made into fiber blanket, plate,cloth.
3. Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining
performance.
Pictures：
- Q: What are the materials of insulation firebricks?
- The furnaces of firebricks are generally divided into two types, namely, unshaped refractory materials and shaped refractory materials. Unshaped refractory materials, also called castables, is a mix of powdery particles of many aggregates and one or multiple adhesives. They must be stirred well with one or multiple liquids when in use, which has a strong liquidity. Unshaped refractory materials generally refers to firebricks. They have standard rules about their shapes and can also be processed temporarily as needed.
- Q: Procedures for producing common refractory materials?
- The general procedures of producing refractory materials include calcination of raw materials, selection of raw material , crushing, grinding, screening, mixing, ageing mixture, molding, drying, burning and etc. At present, the refractory factory usually purchases the calcined clinker, so the calcination of raw material is no longer a consideration of common refractory plants.
- Q: Who knows about the fire endurance of sintered shaly hollow bricks?
- Sintered shaly hollow bricks of Chu area have high intensity. The average compressive strength of them is up to 15.8, which matches with M7.5 cement mortar that has advantages of low water absorption, and good anti efflorescence performance. The fire endurance of sintered shaly hollow bricks should not exceed1050 degrees otherwise they will burn excessively. I, actually, think that the temperature should be controlled within 980 degrees. I hope my answer may help you.
- Q: What is the role of the vermiculite fireproof material?
- The vermiculite fireproof slate is widely applied to construction, shipbuilding, metallurgy, electric power, aerospace and other fields by foreign countries. Vermiculite slate can be applied to furniture, firewall, ceiling, and can be used in the fire fighting access, coated steel, coated pipeline, real flame fireplace in the lining board, wall partition. It is characterized by non combustible, non melting, resistance to high temperature; permanent thermal insulation; sound insulation, non-toxic, smoke-free, green environmental protection; resistance to impact, good dimensional stability and durability of the excellent anti fungal infestation. It can be sawed, nailed, planed, drilled, it can be easily installed and constructed.
- Q: What is refractory aggregate?
- Refractory aggregate is fire-resistant product improved with low temperature binder, chemical?compound and normal temperature strength.
- Q: Which brand of refractory fiber hard thermal insulation board is better?
- One colleague said Huayou refractory fiber hard thermal insulation board is good. The size (mm): 600*400*60. refractory temperature: 1770 ~ 2000 ℃ (℃), and the price is 2850 yuan a ton.
- Q: Could you tell me the fire-resisting time of class B fire proof door?
- The fire-resisting time of class B fire proof door is 1h and thickness of door can't be lower than 45mm.
- Q: What are the new refractories?
- The zirconium oxide produced in Gao Ha in Zibo can reach 2500 degrees.
- Q: How to divide fire resistant level of fire door?
- The classification of fire resistant level of fire door: Grade A is not less than 1.2h. Grade B is not less than 0.9h. Grade C is not less than 0.6h. It is suitable for fire door with different levels: Grade A: Equipment room (such as fire-pump room,power distribution room, generator room, smoke control fan room, etc) door, fire?compartment, door on firewall; Grade B: Eclosed staircase, front door of stair room, smoke-proof?staircase and fire elevator share lobby door, front door of fire elevator, household door which directly opens to front room or shares room; Grade C: The vertical shaft door, such as strong electric wells, weak electric wells, pipe shaft door and air conditioning facilities. I hope this information can help you.
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Refractory Grade Calcined Bauxite 87% Powder
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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