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High Quality 85% Calcined Bauxite

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Bauxite (aluminous soil; bauxite), also known as alumina or bauxite, hydrated alumina containing impurities, main component is its composition of alumina is extremely complex, a variety of geological sources vary the floorboard of the hydrous alumina ore.As water soft diaspore, monohydrate hard diaspore and sanshui diaspore (Al2O3 · 3 h2o);Have a plenty of diaspore and kaolinite (2 sio2, Al2O3, 2 h2o) company;Some is given priority to with kaolinite, and with higher content of kaolinite, the form for general bauxite or kaolinite clay.Bauxite is generally formed by the chemical weathering or exogenous, there are few pure mineral, mineral always contains some impurities, more or less contain clay minerals, iron ore, titanium minerals and clastic heavy minerals, etc.
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 thereby 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%to 90%.the heating is carried out in rotary kilns.


Feature of calcined bauxite:
High Al2O3
Low Fe2O3
Low SiO2
Size of calcined bauxite
0-1mm,1-3mm,3-5mm,200mesh,325mesh,or as buyer's request.

china calcined bauxite price for refractory used for refractory products








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china calcined bauxite price for refractory used for refractory products
Calcined Bauxite Applications
1, aluminium industry.Used for defense, aerospace, automotive, electrical, chemical industry, daily necessities, etc.
2, the precision casting.Alumina clinker made after mold precision casting processed into fine powder.Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
3, used for refractory products.High bauxite clinker as high as 1780 ℃ refractoriness, 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, oil, chemical space of atomic energy, defense and other industries.
5, magnesia and bauxite clinker as raw material, adding proper binder, used for pouring ladle whole ladle lining has particularly good effects.
6, manufacture alumina cement, abrasive materials, ceramic industry and the various compounds can be aluminum.

Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

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Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer’s requirements


★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer’s demand or two sides negotiate

Our Services

We provide you 

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.

We are here for you!

Certification:  (ISO 9001:2015)



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