Calcined Bauxite is available in grind stone form that serves its purpose in construction industry. Calcined Bauxite is the main ore of aluminum. Calcined Bauxite contains Hydrous Aluminum Oxides, formed through the laterization of aluminous rocks in tropical and subtropical areas. Calcined Bauxite is obtained by heating superior grade Bauxite at high temperature from 850
oC to 1600
oC. The moisture is removed by increasing the alumina content. Compared to an alumina content of about 55 % to 60 % in raw Bauxite, Calcined Bauxite has an alumina content of 74 % to 82 %. The heating is carried out in different type of kilns.
Commercial Applications : - Abrasive
- Cement
- Chemicals
- Metallurgical
- Refractory
In raw material, we use high alumina and super duty refractory bricks and shapes, plastics, cast able refractory, motors, gun mixes, ramming mixes, abrasive grains and other products.
Chemical properties : - Al2O3 : 40-42, 43-45, 45-48, 48-50, 50-52, 52-55, 55-58
- Fe2O3 : 1.5-2.5, 2-2.5, 2.5-3, 3-4, 4-5
- SiO2 : 2-5
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