Factory Direct Sale Refractory Popular in France Bauxite of CNBM in China

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$100.00 - 699.00 / m.t.
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Tianjin
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TT or LC
Min Order Qty:
20000 m.t.
Supply Capability:
10000000 m.t./month

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Product Description:

1.Structure of Calcined Bauxite Description

Factory Direct Sale Refractory Popular in France Bauxite of  CNBM in China

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

Factory Direct Sale Refractory Popular in France 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. Calcined Bauxite Images

 Factory Direct Sale Refractory Popular in France Bauxite of  CNBM in China

Factory Direct Sale Fire-Resistant Bauxite of  CNBM in China

Factory Direct Sale Fire-Resistant Bauxite of  CNBM in China

4. Calcined Bauxite Specification

 Factory Direct Sale Refractory Popular in France Bauxite of  CNBM in China

ROTARY KILN BAUXITE

Al2O3

Fe2O3

SiO2

TiO2

K2O+Na2O

CaO+MgO

B.D (g/ccm)

min

max

max

max

max

max

min

88%

1.8%

6.5%

4%

0.25%

0.5%

3.25

87%

2.0%

7.0%

4%

0.25%

0.5%

3.15

86%

2.0%

7.0%

4%

0.25%

0.5%

3.15/3.10

85-80%

2.0%

10.0%

4%

0.30%

0.5%

3.10

ROUND KILN BAUXITE

Al2O3

Fe2O3

SiO2

TiO2

K2O+Na2O

CaO+MgO

B.D (g/ccm)

min

max

max

max

max

max

min

88%

2.0%

6.5%

4%

0.25%

0.5%

3.30

87%

2.0%

6.5%

4%

0.25%

0.5%

3.25

86%

2.0%

7.0%

4%

0.25%

0.5%

3.20

85%

2.5%

8.0%

4%

0.25%

0.5%

3.10/3.15

 

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Factory Direct Sale Refractory Popular in France Bauxite of  CNBM in China

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Q:What is the role of the vermiculite fireproof material?
Apart from inflaming retarding, the materials covered with vermiculite has a lot of advantages including anti rust, waterproof, anticorrosive, wear-resisting, heat-resisting and the coating is armed with toughness, colorability, adhesiveness, fast-drying and luster.
Q:How can refractory materials be divided?
There are many criteria for the classification of refractories.Just referring to a book about refractory.
Q:How long is the duration of fire resistance that fireproof door of level B can endure?
Fireproof doors can be divided into three levels, namely level A,B,C. Fireproof doors of level A can endure fire for 1.50~2.00h while level B for 0.50~1.50h. However, according to national condition, the lowest fire doors fire resistance limit has been specified, namely, level A,1.50h;level B,1.00h; level C, 0.50h.
Q:What is the quote of fireproof and soundproof materials used in KTV?
acoustic material, aluminum foil glass wool, sound-deadening material, glass wool, cinema / KTV dedicated glass wool: The classification of glass fiber products: The category of glass wool felts: The level of insulation cotton: A-level brands: New applications: The origin of GB/T13350-2008: The coefficient of thermal conductivity(room temperature): 0.035 bending at low temperature≤: 0.02 elongation at break: ≤80kPa flexure strength: ≤120kpa Compressive strength: ≤150kpa application temperature: 700 Core material: The shape of glass wool: Fibrous shape: Coil Specifications: Complete quote is 23 Yuan per cubic meter. glass wool board, KTV sound insulation core material: The shape of glass wool: The level of rectangular glass wool: A-level non-combustible brands: Kunnai material: The origin of glass fiber: Guangzhou, Shijiazhuang, Wuhan, the quote there is 8.8 Yuan per cubic meter.
Q:What's the maximum temperature that the refractory ceramic fiber cloth can endure?
While the refractory ceramic fiber cloth is different in high temperature resistance, and in general it can endure the high temperature of more than 1000℃. Ceramics in daily use and art ceramics: Bone china and Guangdong chinaware can generally endure the highest temperature of 1100℃. Jingdezhen porcelain and ceramics: They can generally endure the highest temperature of 1280℃-1340℃, and some special ones can endure the highest temperature of 1400℃. Industrial ceramics: Some of them can endure the highest temperature of about 2600℃. (alumina ceramics: their melting point is 2050℃, and boiling point is 3000℃).
Q:What is refractory?
Refractory is an inorganic nonmetallic material with minimum refractoriness of 1580 ℃. Now, refractory is not defined merely by judging that whether its refractoriness is at above 1580 ℃. Currently, refractory, an inorganic nonmetallic material, are widely used in metallurgy, ceramics, power and other industrial fields.
Q:What refractories can withstand high temperature above 2100 degrees?
Well, what can you heat to 2100 degrees? ? The dryer? What you used are all substance of low-melting point, which cannot withstand even 1000 degrees. "Is the maximum temperature of refractory bricks 1500 degrees?" Do you mean refractoriness or operating temperature? Firstly, a dryer is impossible to reach 2100 degree. If it does, you might as well use high chrome brick for oxidizing atmosphere. You can use silicon nitride brick for non-oxidizing atmosphere. But I guess it is enough for you to use clay brick, but the price differs a lot! ! !
Q:Who knows what material is in the center of fireproof rolling curtain?
made of inorganic super fireproof rolling curtain: Glass fiber cloth ceramic fiber cloth (reinforced stainless steel wire) ceramic fiber blanket aluminum foil cloth. Hope my answer will help you.
Q:which kind of refractory is commonly used in the industry
Therefore it is known as special fire-resistant materials, such as yttria, high alumina raw material (sometimes neutral), olivine,which is used for alkalinity furnace, dolomite, and we roughly divided into several categories, beryllia, cerium oxide, these materials have a strong alkaline slag resistance, thorium oxide, lime, serpentine, which is picked from these refractory raw materials. the raw materials of basic refractory materials are mainly magnesia clay and titanium oxide, but because not many sources of raw materials, it can not be widely applied in the refractory industry, and we can analyze which kind of materal is processed by the pulverizer. There are many kinds of refractory materials, rotary kiln can only be used in particular circumstances. These materials have a variety of slag resistance at different degrees. the main material of special refractories is zirconium oxide. the refractory clay is the most basic and most widely used raw material in the refractory industry.
Q:how long is the fire endurance of plasterboard?
Plasterboard is non-flammable B1 level products. There are introductions in Fireproof Specification of National Standard Building Interior Decoration Design. Plaster board mounted on steel stud can be used as A level decoration materials. In accordance with the national fire safety rules on fire durance of walls and ceilings and other components, we can not simply say whether a piece of gypsum board can meet the requirements. In GB "gypsum board" it clearly states: Fireproof plasterboard can endure fire longer than 20minutes. Wherein Dragon brand fire-resistant gypsum board can endure fire longer than 40 mintues. Gypsum board is comprised of dry wall, steel stud and various auxiliary materials. the fireproof performance of the gypsum board system is relevant to the type, quality , layers of the gypsum board, quality of keel and installations, whether the rock wool is filled and its unit weight, the treatment of seaming and some minor joints.

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