Gongyi City Hengyu Refractories Co., Ltd.

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refractory grade calcined bauxite ,all grades calcined bauxite

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Description
1. Calcined bauxite is one of the principal ore of aluminum.
2. It contains hydrous aluminum oxides and aluminum hydroxides, formed through the lateralization of aluminous rocks in tropical and subtropical areas.
3. Calcined Bauxite is obtained by calcining (heating) superior grade Bauxite at high temperature (from 850 °C to 1600 °C). This removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57 % to 58 % in raw Bauxite.
4. Calcined Bauxite has an alumina content of 84 % to 88 %. The heating is carried out in rotary kilns.




Application
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 . Its features are chemical stability strong, and physical properties of sound.
4. It can manufacture alumina cement, abrasive materials and aluminum compounds.



Specifications
Calcined Bauxite 200MESH,Al2O3 86%min
Calcined Bauxite:

AL2O3: 86% MIN,
Fe2O3: 1.8% max
K2O + NaO; 0.25 max
B.D: .3.2 Min



AL2O3: 85% MIN,
Fe2O3: 1.8% max
K2O + NaO; 0.25 max
SiO2: 6% max,
TiO2: 4%
B.D: .3.2 Min

Main Products

Black silicon carbide, Green Silicon Carbide,Brown Corundum

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