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raw bauxite price,calcined bauxite price,bauxite price

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

 

Disxription:

 

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. 

Usage:

 

(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc. 

(2) precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department. 

(3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780, chemical stability strong, and good physical properties. 

(4) aluminum silicate refractory fiber. With light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity is small and the advantages of resistance to mechanical shock. Used in iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries. 

[5] in magnesia and bauxite clinker as raw materials, add the appropriate binder, used for pouring ladle whole ladle lining has particularly good effects. 

[6] manufacture alumina cement, abrasive materials, ceramic industry and chemical industry can be aluminum of various compounds.

raw bauxite price,calcined bauxite price,bauxite price

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Q:What's the classification of flameproof glass, the refractory time of fireproofing glass.
According to different manufacturing technique, thermal insulation fire-resistant glass can be divided into grouting fireproof glass and composite fireproofing glass. Grouting fireproof glass has good thermal insulation performance, composite fireproofing glass has good fireproof performance.
Q:What are the applications of refractory busway?
Refractory busway is designed for the power supply in fire-fighting equipment, and it can not be used for other purposes. As the generatrix has good heat resistance, thermal insulation, and the heat of the busway can not be emitted, it can not be used long-term at full capacity. In addition to fire-resistant busway, ther bus lines can operate full-load in long term.
Q:What characteristics do A grade external wall fireproofing material have?
1. Save space and reduce costs; 2. Fireproofing, green and environmental protection; 3. Waterproofing; 4. Sound insulation; 5. Thermal insulation; 6. Install easily and shorten the construction period; 7. High safety performance.
Q:What kind of fireproof material is used for steel structure?
Steel is a building material that does not burn, it is shock resistant and anti-bending. In practice, Steel can increase load capacity of the building, but also add asthetic beauty to the architecture design; Unlike concrete, it can bend and stretch. Therefore, the steel construction industry has been favored, such as one-story or multi-story buildings, skyscrapers, factories, warehouses, waiting rooms and waiting hall, which is the common use of steel. However, the steel as building materials has unavoidable defects in fire prevention, its mechanical properties such as yield point, tensile strength and modulus of elasticity, decrease abruptly due to temperature rise.
Q:how to classify the fireproofing material levels A1 A2 B1?
their classification is shown specifically in Fireproof  Specification of Building Interior Decoration Design GB 50222-95 appendix A, flammability,inflammability materials, flame retardency, noninflammability: combustion performance of A, B3, B2, B1 materials are divided into
Q:What are the differences and connections between softening temperature of the refractory under a fixed load and thermal resistant creep property of the refractory?
The result of refractoriness under load is temperature while the result of creep is percentage of deformation. Refractoriness under load and creep can be tested by an instrument. Refractoriness under load reflects the temperature in which the deformation reaches a certain degree under the condition of load. Creep reflects the deformation refractory has under the condition of constant temperature and load. Both refractoriness under load and creep are important criterion for the operating temperature of refractory.
Q:Who knows about ranking rules of fireproofing thermal insulation materials for exterior wall?
You can try the following way to give a brief introduction of the fire rating classification of external wall thermal insulation materials. 1. the building materials are divided into following categories in terms of combustion performance according to the national standard of GB8624-97. A-level: Incombustible building material: materials almost don't burn. B1-level: nonflammable building material: these materials are good at resisting flame. It is difficult for them to burst into fire when coming across open fire in the air or at high temperature. It will not quickly get wilder and when the fire source removes, it will be extinguished immediately. B2-level: Combustible building material: combustible building materials can play a certain role in flame resistance. It will immediately burst into flames when coming across open fire or at high temperature, and will lead to fire spreading, such as wooden column, timber roof truss and timber beam as well as stairs. B3-level: Inflammable building material: Inflammable building materials are highly flammable with no flame retardant ability. The fire risk is high. 2.The exterior wall thermal insulation materials can be classified according to fire rating. 1). Insulation materials with A-level combustion performance: rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2). The insulation materials with B1-level combustion performance: specially-treated extruded polystyrene board(XPS)/ specially-treated polyurethane(PU), phenolic aldehydegelatine powder polyphenyl granule,etc. 3). Insulation materials with B2-level combustion performance: molding polystyrene board(EPS), extruded polystyrene board(XPS), polyurethane(PU), polyethylene(PE), etc.
Q:What's the type of fire proofing thermal insulation materials?
Aluminum silicate: AlSiO3 With flint clay clinker as raw material, aluminum silicate is made by resistance or electric-arc furnace fusion and then spraying processing. Aluminum silicate fiber, also known as ceramic fiber, is a new lightweight refractory material featured by light weight, high temperature resistance, good thermal stability, low heat conduction rate, small heat capacity, good mechanical vibration resistance, small thermal expansion and good thermal insulation. It can be processed into aluminum silicate fiber board, aluminium silicate fiber felt, aluminium silicate fiber rope, aluminium silicate fiber blanket, etc. Featured by high temperature resistance, low heat conductivity coefficient, light weight, long life, good tensile strength and elasticity and no toxin, this new sealing material is an alternative of asbestos and widely used for thermal insulation of thermal energy equipment in metallurgy, electric power, machinery, chemical industry, etc.
Q:Does hardware construction materials contain refractory?
refractory includes one kind of building materials. It is a special material and not commonly used.
Q:How can refractory materials be divided?
Refractory materials in China can be roughly divided into refractory products and unshaped refractories.

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