Calcined bauxite is produced by sintering/calcining of low iron, low alkali containing raw bauxites at temperatures of 1600 – 1800 degree Celsius in rotary, round, or shaft kilns. In this calcination process, the high refractory mineral phases corundum and mullite are formed. This process of calcining (heating) bauxite in kilns removes moisture and gives Calcined Bauxite its high alumina content and refractoriness, low iron, and grain hardness and toughness.
Therefore calcined bauxite is one of the most important raw materials for the production of shaped and unshaped refractories for the steel industry, foundries, glass and cement plants. Calcined bauxite is available “run of the kiln” i.e. uncrushed or infractions and as ball milled powder according to customers requirements, in bulk or bagged.
Bauxite size: 0-1-3-5-8mm , 100mesh 200mesh 300mesh
For more details, pls contact cindyhu@hnsicheng.cn
