Operation Of Calcination Of Bauxite In Rotary Kiln

Bauxite at high temperature from 850 oC to 1600 oC. 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 82 to 86 . The heating is carried out in rotary kilns. Calcination is done at different temperatures

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