China Calcined Bauxite made in China

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 2000 m.t./month

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Packaging Details:	1mt big bag
Delivery Detail:	7days for ready goods

China Calcined bauxite

Product 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.

Specifications

Grade	AL2O3	FE2O3	TIO2	K2O+Na2O	CaO+MgO	Bulk density
75	75min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.70
80	80min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.80
85	85min	≤2	≤4.0	≤0.3	≤0.5	≥3.00
86	86min	≤2	≤4.0	≤0.3	≤0.5	≥3.10
87	87min	≤2	≤4.0	≤0.3	≤0.5	≥3.20
88	88min	≤1.8	≤4.0	≤0.25	≤0.5	≥3.25
90	90min	≤1.8	≤4.0	≤0.25	≤0.5

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

China Calcined Bauxite made in China

Q:Who knows how many kinds of fireproof insulation materials are there in the market?: The so-called A-level materials in fire insulation materials, namely, the WW non-combustible insulation materials, and the WW material s are A-level. Inorganic fireproof and thermal insulation materials can be used as wall insulation materials to replace red bricks, therefore, they, as thermal and cold insulation materials, can reduce the thickness of walls, and save energy, as well as expand applicable areas indirectly, decreased structure weight. They are very good.

Q:Are refractory materials and fireproofing materials the same?: Refractory materials is flammable when it is reached certain temperature for a certain time, but it will not support burning when there is no open fire (such as: gypsum board). Fireproofing material reaches A grade and it is non-combustible itself.

Q:What's the fire resistance rating of the exterior fire?retardant?coating?: Exterior thick fire-resistant coating for steel structure can reach the first level of fire resistance, thin fire-resistant coating for steel structure can be fire-resistant for three hours, and ultra-thin fire-resistant coating for steel structure can just be within the second level of fire resistance.

Q:Who knows how many poured refactory material are there?: Pouring refractory material can be classified into the followings according to the body density: Heavy (> 2.0g\cm3), medium heavy (1.0-2.0g\cm3), light (0.4-1.0g\cm3); by binding agent: Combination of hydration, chemical binding, condensation, hydration and condensation: Clay, high alumina, silica, magnesia, alumina magnesia, magnesium and chromium, magnesium zirconium, silicon carbide etc.. Clay brick, high alumina brick, bead brick, silica brick, light mullite, alumina hollow spherical brick, oxidation zirconium hollow spherical brick, corundum brick, magnesia brick, magnesia brick, magnesia alumina spinel brick, magnesia chrome brick and so on

Q:Who knows what material is in the center of fireproof rolling curtain?: Material and the type high silica cloth as curtain, side rails, with galvanized steel in its end and stainless steel two kinds of materials with double curtain in the end I hope my answer can help to you

Q:What is the interior fireproof thermal insulation material?: Polystyrene?board, extruded sheet and polyurethane are mainly used. Polystyrene?board is the cheapest, but the thermal insulation effect is ordinary. When absorbing water, it will deform. Other waterproof measures are needed to be made after insulating layer is done./

Q:The mechanism and function of antioxidants in carbon containing composite refractories are briefly described.: Mechanism analysis of silicon actionWhen silica fume is added to the carbon composite refractory, the phase changes and chemical changes are as follows:<1> Si (s) +C (s) =SiC (s) Delta G ~ =-522+1.50T (kJ)<2> Si (s) +MgO (s) =Si (g) +Mg (g) Delta G ~ =203.9-0.13T (kJ)<3> 2Si (s) +CO (g) =SiC (s) +SiO (g) Delta G ~ =-963.2+0.31T (kJ)<4> SiC (s) +CO (g) =SiO (g) +2C (s) Delta G ~ =81.47-0.15T (kJ)<5> SiO (g) +CO (g) =SiO2 (s) +C (s) Delta G ~ =-668.8+0.33T (kJ)From the above diagram and the reactions seen at high temperatures has joined the Si SiO and Mg volatiles, but <4> and <5> reaction have played a role in inhibiting carbon oxidation, and the condensation of SiO2 to a certain extent the role of protective film.The total reaction process is CO reduction to C, and there is a certain volume expansion, so that the pores are blocked and the density of bricks is increased. Therefore, the oxidation resistance of brick is improved.

Q:How to classify the grade of wall fireproof and thermal inuslation matertial?: External wall thermal insulation materials are mainly divided into grade A, grade B1, grade B2 and grade B3. In accordance with the current "Combustion Performance Classification Method of Building Materials", grade A thermal insulation material is incombustible?material and belongs to inorganic heat preservation material. However, grade A thermal insulation material is few in terms of the current market. There are only JETCO YT inorganic active wall thermal insulation material, glass wool, rock wool board, foam glass, vitrified micro bead and grade A fireproofing thermal insulation board. However, compared with grade A thermal insulation material, the more welcomed by the market is the organic insulation materials. Thermal insulation material that is determined as grade B is divided into three levels. Grade B1 is grade is flame retardant. Grade B2 is combustible. Grade B3 is flammable.

Q:who knows the fire endurance of fireproof coating?: fireproof coating of different thickness differs in its fire endurance. Let me intrduce you as follows: The amount of time of 0.5 hours refractory thickness 0.45mm 0.79kg / m21 hr 0.9 mm 1.5kg / m21.5 hour 1.4 mm 2.3kg / m22 hr 2.0 mm 3.3kg / m22.5 h 2.8 mm 4.6 kg / m2

Q:Is refractory material harmful to human body?: Chromium oxide is poisonous in alkaline environment, and the gas produced by heating of asphalt, asphalt and refractory material is poisonous............ Go to the real estate company experts, I can think of these

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