Factory Direct Sale Popular in Spain Bauxite of CNBM in China

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Tianjin
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TT or LC
Min Order Qty:
11 m.t.
Supply Capability:
10000000 m.t./month

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1.Structure of Calcined Bauxite Description

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

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 Fire-Resistant Bauxite of  CNBM in China

Factory Direct Sale Fire-Resistant Bauxite of  CNBM in China

4. Calcined Bauxite Specification

 

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

 

 

 

 

5.FAQ of Calcined Bauxite

1). Q: Are you a factory or trading company?

A: We are a factory.

2). Q: Where is your factory located? How can I visit there?

A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!

3). Q: How can I get some samples?

A: Please connect me for samples

4). Q: Can the price be cheaper?

A: Of course, you will be offered a good discount for big amount.


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1.High quality and competitive price.

2.Timely delivery.

3.If any item you like. Please contact us.

Your sincere inquiries are typically answered within 24 hours.

 



 

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Q:What are the best refractory materials in 2,400 Celsius degree?
and carbon fiber or nanomaterials.
Q:Fire rating of decoration materials
code for fire protection design of buildings
Q:What are the types of steel refractory materials
The major category is classified as permanent layer, working lining. Specific varieties: Air permeable brick (corundum). steel ladle brick (magnesia or corundum), permanent layer castable (high alumina), reinforcing material for ladle bottom, repair material for the edge of tank and so on.
Q:What's the fire retardant material of roller shutter fire resistance door ?
Fire resistant rolling shutter door is generally filled with aluminum silicate fiber cotton inside.
Q:What's the fireproof specification for constrcution external wall thermal insulation materials?
incombustible material: Class A1 (homogenous): such as YT inorganic active insulation material for wall thermal, foam glass, rock(ORE) wool, glass wool, insulation board of aerogel,expanded perlite series, expaned glazed hollow bead, foam insulation boards, ETC. Class A2 (non-homogeneous composite): such as phenolic foam, gelatine powder polyphenyl granule thermal insulation material, inorganic coating materials and other nonflammable material. phenolic foam insulation board, urea resin foam and board, high flame-retardant polyurethane rigid foam and board, high flame retardant polystyrene cystosepiment, gelatine powder polyphenyl granule heat insulating slurry and other combustible materials. Requirements for combustion levels of common antiflaming EPS, common inflaming retarding XPS, common antiflaming rigid PU foam board: Class A is incombustible material (product); B1 nonflammable material (product); B2 combustible material (product); B3 combustible material (product).
Q:What parts of cement kilns are refractories used on?
These parts are decomposition furnace, smoke chamber, kiln, kiln hood, grate cooler, tertiary air duct and coal pipe.
Q:Who knows how many fire heat preservation material are there?
There are many kinds of fire proof materials. The major material used in construction industry is fire proof and thermal insulation material, mainly include vitrified micro bead insulation board, class A expanded bead fiber board, rock wool board, plastic extruded sheet, polyurethane insulation board
Q:How long is the fire endurance of fire resistant rolling shutter door?
According to the new national standards GB_12955-2008 for fire doors from January 1, 2009, fire doors are classified acoording to thermal insulation fireproof door(A),part heat insulation fireproof door(B) and non thermal insulation fireproof door(C), rather than thermal insulation fireproof door. At the same time, the original fire endurances of class A, B and C fire doors are adjusted to 1.5h, 1.0h and 0.5h respectively. So, GB is 1.5h
Q:What kind of flexible fireproof material is really good?
The best one is grade A fireproof material. A-class fire flexible material adopts clay, stone, sand, cement blocks and other inorganic powder and modifier and product density is 2327 kg/m3. Upon examination, the combustion performance of this product is in accordance with the grade A specified requirements and additional classification meets A s2, d0, t0 level requirements. According to GB 8624-2006, the combustion performance of product reach A2 - s2, d0, t0 level.
Q:Who know about the knowledge of acid refractory material? Please explain in detail.
Refers to the silicon dioxide

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