84% Rotary/ Shaft/ Round Kiln Alumina Calcined Bauxite Raw Material for Refractory

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Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
3000 m.t./month

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Product Description:

84% Rotary/ Shaft/ Round Kiln Alumina Calcined Bauxite Raw Material for Refractory


Specifications

1.    We directly supply calcined bauxite 

2.    Al2O3:70%/75%/80%/85%/86%/88%/90% 

3.    Size:0-1-3-5-8-10/200mesh/325mesh/400mesh/500mesh

 

Size:

Lumps /Grains:0-1mm,1-3mm,3-5mm,5-8mm /Powders:100mesh, 200mesh,325mesh

 

Product Description:

Bauxite, alumina or bauxite miner , main ingredients are aluminum oxide, hydrate alumina containing impurities,

is an earthy mineral.White or grey, brown yellow or light red by iron.From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3, opaque, very brittle.

Very difficult to melt.Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution.Mainly used for aluminium, refractory material.


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 refractoriness can reach 1780°C.

 It is charactered by good chemical stability and mechanical performance.(Al2O3 ≥48% with low Fe2O3)

4.Aluminium silicate refractory fiber: The high alumina bauxite grog can melt under2000°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.

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.

 

Calcined Bauxite Grade:

GRADE

CHEMICAL CONTENT,%

PHYCICAL PROPERTIES

Al2O3,%

Fe2O3,%

TiO2,%

CaO+MgO,%

R2O,%

DENSITY,

g/cm3

WATER ABSORPTION,%

GAL-70

≥70

≤2.0

-

≤0.6

≤0.6

≥2.75

≤5.0

GAL-80

≥80

≤2.0

≤4.0

≤0.5

≤0.5

≥2.90

≤5.0

GAL-85

≥85

≤1.8

≤4.0

≤0.4

≤0.4

≥3.10

≤4.0

GAL-88

≥88

≤1.5

≤4.0

≤0.4

≤0.4

≥3.15

≤4.0

GAL-88HG

≥88

≤1.5

≤4.0

≤0.4

≤0.4

≥3.25

-

 

Packaging & Delivery

Packaging Details: In bulk or in 1-1.25mr bag

 

Product Pictures:

84% Rotary/ Shaft/ Round Kiln Alumina Calcined Bauxite Raw Material for Refractory

84% Rotary/ Shaft/ Round Kiln Alumina Calcined Bauxite Raw Material for Refractory

84% Rotary/ Shaft/ Round Kiln Alumina Calcined Bauxite Raw Material for Refractory


Our Service:

1. Your inquiry related to our products or prices will be replied in 24hours.

2. Manufacturer with large capacity, ensure the fast production cycle after confirmed the order.

3. Our professional technicians will answer your entire enquiry in patient.

4. To meet the refractory solutions, we can serve as your instructions.

5. Protection of sales area and private information for our entire customer.

 

If you’ve kind enquiries, please don’t hesitate to let us know. ^_^


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Q:I wanna ask what are the acidic refractories?
You can look at these: (1) silica brick with stronge acidity, unshaped silicious refractory, quartz glass and fused silica combined products; (2) semi-silica refractory with moderate acidity and pyrophyllite refractory; (3) clay-based refractory with weak acidity. I hope it is useful!
Q:Introduction to refractory material
Refractory material refers to inorganic non-metallic materials with refractoriness of no less than 1580℃. Refractoriness refers to the centigrade temperature of refractory cone sample in the case of no load when resisting high temperature without softening. But the refractoriness alone cannot descript the refractory material, thus 1580℃ is not absolute. Now refractory material is defined as material used in high temperature allowed by its chemical properties. Refractory material is widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, silicate and power industrial area, of which the application in metallurgy accounts for the largest part of 50% ~ 60% of total output.
Q:I want to consult the fire resistant level standards of external wall thermal insulation materials.
1, The building with the height larger than or equal to 100m, should have the A-level combustion performance. 2, The thermal insulation material of the building, with a height larger than or equal 60m and less than 100m, should not be less than the level B2 combustion performance. When using the level B2 insulation material, each level should set horizonal fire barrier zone. 3, The thermal insulation material of the building, with a height larger than or equal to 24m and less than 100m, should not be less than the level B2 combustion performance. When using the level B2 insulation material, each two levels should set horizonal fire barrier zone. 4, The thermal insulation material of the building, with a height less than 24m, should not be less than the level B2 combustion performance. When using the level B2 insulation material, each three levels should set horizonal fire barrier zone. I hope my answer will help you. Thank you!
Q:Why the refractories should be waterproof and wetproof
It is necessary to like magnesium carbon, waterproof and wetproof is more important. There is a variety of refractory materials, in general, basic is defective, and wherein the binder and additives water will lose their effect, the relationship is not very high aluminum large amount of water determines how much of the performance after the hydration will affect the strength and high temperature performance ;; hydration & quot, just need a little package like magnesium and calcium-based product itself readily react with water to calcium oxide, magnesium, chromium is not all the material goods have waterproof ordinary bulk materials need to add water before use
Q:What types does soft fire prevention materials have?
Types of fire resistant species. Mainly listed as follows: finishing fire retardant paint, component fire retardant coating, fire-resistant coating for steel structure and othe kinds of fire retardant coating. Flame retardant plastics and its products, textiles, building materials, flame retardant fabric and exterior wall thermal insulation system products, floor materials, such as various types of fire prevention materials;Fire prevention board, fire doors, fire prevention, fire shutter, fire glass window frame, elevator doors, ventilation pipes, fire blocking material, fire smoke exhaust fan and other kinds of artifacts (resistance) fire prevention. Indicators of judging fire mainly include: difficult to fire, ignition, smoke toxicity, smoke density, heat release and flue gas; fireproof performance, combustion performance and combustion heat value, fire resistance, high temperature resistance, fire rating, etc. And some specific parameter is needed to use professional testing instrument to judge, but to the inorganic lab for understanding, fire prevention level test result accuracy.
Q:How to choose thermal insulation materials for flood heating?
1, Select the appropriate floor material suitable for radiant floor heating. The floor radiant heating system mainly transfer heat through the ground concrete and the ground material to the room. Therefore in the heating season the ground material will always be heated during heating season. Therefore, it is better to choose stone materials and compround floor plate insensitive to tenmperature change with good heat dissipation and functions. Currently, wood floor is not suitable for the ground radiant heating system. 2, choose the pipe with anti permeability performance. Plastic floor heating pipe itself has a certain air permeability, if oxygen penetrates in it is prone to oxygen erosion and system's mental device will be eroded, resulting in the risk of leakage. Therefore in order to ensure the reliable operation of the heating system, the selected pipe must have anti oxygen permeation performance, and meet the standard stipulated by the DIN4726 oxygen permeation quantity: and be less than 0.1mg\L.d at 40 C.
Q:What is the main constituent of refractory brick?
Primarily magnesium oxide and sodium silicate as binder.
Q:Can someone professionally introduce the classifications of refractories?
It can be divided into two categories of ordinary and special refractory. Ordinary refractories can be devided into acidic, neutral and alkalinee refractories according to chemical properties. Special refractory can be devided into high temperature oxide, refractory compounds and high-temperature composite materials according to the compositions. Furthermore, it canbe devided into ordinary refractory products (1580 ~ 1770 ℃), advanced refractory products (1770 ~ 2000 ℃) and super refractory products (above 2000 ℃) according to the strength of refractoriness. It can be divided into bulks (standard brick, special-shaped brick, etc.), special shape (crucible, sagger, pipe, etc.), fibrous (aluminum silicate, zirconia and boron carbide, etc.) and Indefinite shape (refractory clay, castableand ramming mass, etc.) according to the shapes of products. According to the sintering process, it can be divided into sintered products, cast products, melting jetting products.
Q:Who knows what is the external wall thermal insulation materials for level A fireproofing?
In general, external wall thermal insulation materials can be divided into level A and level B by combustion grading. Level A is non-combustible material, and level B is combustible materials. A few years ago, the fire of the CCTV Building and Shenyang Hotel put the blame on the level B material. At present, the level A material is widely used, and the prices of same level A materials may be even cheaper than the level B material. Level A material is generally divided into thermal mortar, phenolic foam board, rock wool board and foam cement board. I hope this information can be helpful to you. Hope you adopt.
Q:how long is the fire endurance of plasterboard?
fireproof endurance can reach a maximum of 4hours, suitable for a variety of public buildings firewall, and partitions for public exit passageway, reaching standard level of fireproof. the lightweight partition made of gypsum board and steel stud is mainly for dividing architecture space. Rock wool can be filled in the mddle according to its design requirements, using different series of gypsum board, steel stud. the walls may have fire resistance and sound insulation property of various degrees.

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