90% Round Kiln Calcined Bauxite For Alumina Industry

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0 m.t.
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25000 m.t./month

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Product Description:

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

90% Round Kiln Calcined Bauxite For Alumina Industry

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

90% Round Kiln Calcined Bauxite For Alumina Industry

 

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.


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Q:What brands are the best in the A-level refractory materials?
A-level refractory materials: Dulux, Nippon, Carpoly, Skshu and Smoz. Fireproof boards are the most common materials in the market. There are two are commonly used: one is HPL decorative plastic laminates with advantages of fire- ,moisture-, wearproof and oil resistance as well as easy to wash, besides it has a great variety of colors and types. Another one is glass fiber magnesite fireproof board, the out layer of which is decorative materials while the inner layer is mineral magnesium fireproof materials which can resist a high temperature of 1,500 Celsius degree but it is not a good ornament.
Q:How to divided the grade of external wall thermal insulation materials?
Synthesized the three versions of GB8624 (1997,2006,2011), external wall thermal insulation fire rating can be basically divided into: A1, A2, B1, B2, B3 and other levels. There are many technical indicators to make specific division, but I partly cannot report for a while, because it is very professional and technical. I hope I can help you!
Q:What is shapeless refractory?
Q:what is the requirements of roofing insulation materials fire rating?
The fireproofing requirements of architectural design are regulated by architectural design fire safety rules, roofing insulation material only has the requirements of materials combustion performance, namely non-combustible material. No fire rating requirements.
Q:Are the specification of fireclay bricks and ordinary clay brick the same?
Do you want to know whether the specifications of fireclay bricks and ordinary clay brick are the same?
Q:What are the classifications of refractory? Which category does steel ladle castable belong to?
In addition, it can be divided into refractory, shapeless refractory material. And it can also be divided into acidic refractory, basic refractory and neutral refractory. If you want to know more, you can ask thme. In fact, every company has different refractory clasifications. There are more clasifications in Huaheng.
Q:what's the standard of fireproofing material?
Class A1 is divided according to the combustion performance of GB8624-2006 building materials and products. Specific technical index requirements are: 1, the temperature rise ≤30 degrees;mass loss rate ≤50%; combustion duration time is 0; 2, main components, overall products, gross calorific value of external secondary components ≤2.0MJ/kg; any inner secondary component ≤1.4MJ/kg; (there are difference between homogeneous and non-homogeneous). Z802 building materials noninflammability testing furnace has to be used for testing technical indicators mentioned in test 1, using Z805 building materials combustion heat value to test technical indicators mentioned in test device 2.
Q:Does hardware construction materials contain refractory?
refractory includes one kind of building materials. It is a special material and not commonly used.
Q:What are the new refractories? What are the features? How about their application and development?
In metallurgy, in what position should it be used, in order to make the best. Answers are as following. In iron, steelmaking or converter. When questioning, pay attention to the ways. Answers: Try to use synthetic refractory materials.
Q:What are the differences between thermal insulation material and refractory?
Just as its name implies, Thermal insulation means that it doesn't conduct heat instead it insulates heat inside, while refractory means resistance to high temperature and it will not be out of shape or damaged due to high temperature.

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