Refractory Grade Calcined Bauxite of CNBM in China

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Tianjin
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11 m.t
Supply Capability:
11111111 m.t/month

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Product Description:

Refractory Grade Calcined Bauxite of CNBM in China 

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 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.Main usage of the Calcined Bauxite of CNBM in China

1)The bauxite for aluminum industry in defense, aerospace, automotive, electrical, chemical, and daily supplies.

 

2) Bauxite clinker processed into fine powder and made after the casting mold. Used in military, aerospace, communications, instrumentation, machinery and medical equipment sector.

 

3)The bauxite can be used in refractory products. The refractoriness of high-alumina clinker is up to 1780°c. Its features are chemical stability strong, and physical properties of sound.

 

4)It can be raw material for alumina cement, abrasive materials and aluminum compounds.

 

4. Calcined Bauxite of CNBM in China Images

 

Refractory Grade Calcined Bauxite of CNBM in China

Refractory Grade Calcined Bauxite of CNBM in China

 

 

5. Calcined Bauxite Specification


Item

AL2O3

FE2O3

TIO2

K2O+Na2O

CaO+MgO

Bulk density

GAL75

≥75

≤2.5

≤4.0

≤0.3

≤0.5

≥2.7

GAL80

≥80

≤2.5

≤4.0

≤0.3

≤0.5

≥2.8

GAL85

≥85

≤2

≤4.0

≤0.3

≤0.5

≥3.0

GAL86

≥86

≤2

≤4.0

≤0.3

≤0.5

≥3.1

GAL87

≥87

≤2

≤4.0

≤0.3

≤0.5

≥3.2

GAL88

≥88

≤1.8

≤4.0

≤0.25

≤0.5

≥3.25

GAL90

≥90

≤1.8

≤4.0

≤0.25

≤0.5

≥3.3

 

6.Our Service

 

1.We will keep the client informed about the cargo situation,from production time to the shipment.

 

2.We test samples picked up from the plant or loading port in our designated third party lab or SGS lab.We tes sample before every shipment to make sure each lot quality is good for our client.

 

3.As chinese governmental company,we are reliable.

 

 

7.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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Q:what is the specs of thermal insulation refractory slab ?
it is produced in accordance with scientific formula by using asbestos, glass fiber and potclay . it has strong tension strength capable of withstanding 1400 degrees Celsius, specifications!: 1.5DD20 (mm)
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.
Q:what's the materials of fireproof housing?
Prefabricated houses take rock wool board as its wall materials to ensure prefabricated houses and color steel mobile home reach A-class fireproofing standards.
Q:What's the B grade fireproofing material?
Grade B: rubber and plastic, extrusion molding, polyphenyl, PEF. organics, extruded sheet, polyphenyl board, phenolic resin. Hairong modules (thermal insulating and fireproof material) can reach grade B1 in fireproof performance.
Q:What are the main characteristics of the sic refractories?
1. The usge temperature of silicon carbide refractory is generally 1760 ℃ 2. The silicon carbide refractories can withstand the dramatic changes of temperature and have a good thermal shock resistance performance. To prevent the cracking or breaking of lining refractories. 3. Under the conditions of high or low temperature, it can withstand a certain compressive stress. 4. Under the conditions of high or low temperature, it can withstand friction. 5. It can withstand the huge hydraulic pressure or buoyancy of the metal. 6. It can also withstand the effect of furnace gases to prevent the infiltration of other refractories and reactions.
Q:What is carbon composite refractories? I hope that the answer is in detail.
Q:What are first rate fire resistant window materials?
Natural environmental protection, non-poisoned, non-peculiar smell, non-radioactive; non-combustible, fireproofing, moisture-proof, corrosion-resistant; easy construction, lightweight, high strength, www. jsxsmy.
Q:What is the limit of fireproof rolling shutter?
Fireproof rolling shutter door is a kind of fire protection and heat insulation facility which is suitable for the large openings of buildings, having a certain effect on the design and installation. Fire shutter doors are widely used in fire partition of industrial and civil building. It can effectively prevent the spread of fire, to protect the safety of life and property. It is an indispensable modern building fire facilities. According to the national standard 14102-2005 GB standard, the provisions of 14102-2005 GB specify that: If fire resistance limit of fire resisting shutter is no less than 3 hours, it is AAA fireproof rolling shutter. Therefore, the fire resistance limit of AAA grade fireproof rolling shutter should be 3 hours.
Q:Who knows the fire endurance of B-level fireproof doors and windows?
According to the fire endurance, fireproof doors can be divided into A-grade, B-grade and C-grade, whose fire endurance should not be less 1.2h, 0.9h and 0.6h respectively. Fire endurance of fireproof windows: A-grade fireproof windows are not less than 1.5h and B-grade fireproof windows are not less than 1h. The door leaves of A-grade and B-grade fireproof windows should be steel materials, and their glass should be composite fireproof glass whose thickness is no less than 26mm. Monolithic fireproof glass window is not B-grade fireproof window, nor A-grade fireproof glass window. It si called non-insulated fireproof window.
Q:How many levels are there in the classification of PP fireproof materials?
PP fireproof materials level V-0: After two 10-second fame tests on the sample, the flame extinguishes within 30 seconds. Inflamer can not drop. V-1: After two 10-second flame tests on the sample, the flame extinguishes within 60 seconds. Inflamer can not drop. V-2: After two 10-second flame tests on the sample, the flame extinguishes within 60 seconds. Inflamer can drop.

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