AL2O3 85%min China Calcined Bauxite Manufacture

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

Usage of Calcined bauxite
1.Aluminium industry.

2.Precision casting.

3.Refractory industry.

4.Silicic acid aluminium firefibre

5.Mixed with magnesium oxide,it can be an nice bonding agent,especially for pouring entire steel teeming ladle lining

6.Manufacture bauxite cement,grinding abrasives.ceracmic industry,and chemical industry for making aluminium compounds

Packaging & Delivery

Packaging Details:within 15 days after receiving L/C or Payment
Delivery Detail:Packing in 25kg bag or 1mt big bag

Specifications

Bauxite 
1 Al2O3:>=85% 
2 Fe2O3:<=2.0% 
3.Bulk Density:>=3.0g/cm3 
5. refractory/welding industry

 AL2O3 85%min China Calcined Bauxite Manufacture

 

1. Calcined bauxite 
AL2O3:70% min.
FE2O3:2% max.
SIZE: 1-5MM 90% min.

china calcined bauxite manufacturer since 1999 
purity of al2o3 75%-90% 
rotary kiln calcined bauxite 
self-owned bauxite mines

 

 

Specifications of Calcined bauxite

 

Grade

AL2O3

SIO2

FE2O3

TIO2

K2O+Na2O

CaO+MgO

Bulk density

HX75

75min

≤17

≤3.0

≤4.0

≤0.3

≤0.5

≥2.70

HX80

80min

≤12

≤3.0

≤4.0

≤0.3

≤0.5

≥2.80

HX85

85min

≤8

≤2

≤4.0

≤0.3

≤0.5

≥3.00

HX86

86min

≤7

≤2

≤4.0

≤0.3

≤0.5

≥3.10

HX87

87min

≤6

≤2

≤4.0

≤0.3

≤0.5

≥3.20

HX88

88min

≤5

≤1.8

≤4.0

≤0.25

≤0.5

≥3.25

HX90

90min

≤3

≤1.8

≤4.0

≤0.25

≤0.5

 ≥3.3

Moisture(max)

0.50%

 

Size of Calcined bauxite

Section sand:0-0.3mm,0-0.5mm,0-1mm,1-3mm,3-5mm,5-8mm.

Fine powder:100#-0,200#-0,325#-0

Moh’s hardness: 7-8

Melting point:1770-2000 C


AL2O3 85%min China Calcined  Bauxite  Manufacture


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Q:Who knows how many kinds of fireproof insulation materials are there in the market?
The so-called A-level materials in fire insulation materials, namely, the WW non-combustible insulation materials, and the WW material s are A-level. Inorganic fireproof and thermal insulation materials can be used as wall insulation materials to replace red bricks, therefore, they, as thermal and cold insulation materials, can reduce the thickness of walls, and save energy, as well as expand applicable areas indirectly, decreased structure weight. They are very good.
Q:Who can tell me what is neutral refractory?
Refractories mainly refer to aluminum oxide, chromium oxide and carbon as the main component of refractory materials, such as corundum brick, high alumina brick, and carbon brick. Its characteristic goes to the resistance to both acidic and basic slag. Basic refractories mainly refer to the refractory materials whose mian components are magnesium oxide and calcium oxide, including magnesia bricks, magnesia-alumina bricks, magnesia chrome bricks, dolomite bricks, etc. Basic refractory is good at resisting basic slag erosion.
Q:How many types of fire-resistant material?
1. Acid fire-resistant material refers to one with more than 93% SiO2. It is featured by resistance to the corrosion of acidic slag ad high temperature and easy to react with alkaline molten slag. 2. Alkaline refractory material generally refers to one with magnesium oxide or magnesium oxide and calcium oxide as the main component. It has high refractoriness and strong resistance to basic slag. 3. Silicate aluminum refractory material refers to one with SiO2, Al2O3 as the main component. According to the content of Al2O, it can be divided into three categories: half siliceous (15-30% Al2O3), clay (Al2O3 30 ~ 48%), high aluminum (more than 48% of Al2O3). 4. Fused cast refractory material refers to shaped refractory products made by high temperature melting and casting.
Q:How is grade of fire endurance divided?
Fire resistance level is mainly decided according to the importance and function of the building. For example, very important buildings are set as the first level, and the less important is the second level, and so on.
Q:What is the importance of silicon powder in refractory processing?
it can certainly improve the fire resistance
Q:How much is the duration of fire resistance of the porous brick shale?
The duration of fire resistance of the porous brick shale could reach 1,580℃—1,770℃. It is predominantly applied in coke oven masonry and building, glasses, porcelains, carbon calciner, and the vault of thermal furnuces of refractory bricks as well as other load-bearing elements, and high temperature bearing parts of cowper stove. But it should be aware that it can’t be used in thermal equipment below 600℃ and with large variation of temperature.
Q:What are the main materials in concrete fireproofing material?
fireproofing materials mainly consist of class A incombustible material and class B1 nonflammable material. Class A incombustible material: Granite, marble, terrazzo, cement products, concrete products, gypsum board, lime products, clay products, glass, tiles, mosaics, steel, aluminum, copper alloy; class B1 nonflammable material: Ceiling materials, dry wall, fibrous plaster.
Q:How is refractory material made?
It is made from yellow mud and water.
Q:Who knows what is the standard of insulation material whose fire proof is level A?
Non combustible materials of level A: WW inorganic active wall thermal insulation material, Cement foaming thermal insulation board, Glazed hollow bead insulation mortar, rock wool board, Glass wool board, Foam ceramic.Non combustible materials of level A, endowed with low density, low thermal conductivity, higher bearing capacity, convenient construction , economy and durability, are widely used in heat pipe, heat equipment, other industrial pipeline equipment , thermal insulating materials on industrial buildings, and used as heat preservation, thermal insulation, sound absorption materials of industrial and civic buildings.Non combustible materials of level A are used more for refractory protection coating material of steel structure because of its good thermal stability.
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.

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