Rotary Kiln Bauxite

Rotary kiln bauxite:
Aluminum hydroxides formed
Obtained by calcining (heating) superior grade
No metallic iron reactions

In high alumina and super duty refractory bricks and shapes, plastics, castables, mortors, gun mixes, ramming mixes, abrasive grains and other products.
Refractory grade calcined bauxite fines are ground in alumina lined ball mills using high alumina grinding media. This ensures extremely low magnetic iron levels in the fines. Refractory grade calcined bauxite ceramically ground fines are an excellent source of alumina for high alumina refractory formulations where no metallic iron reactions are important.
1. Description:
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 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, Calcined Bauxite has an alumina content of 84 % to 88 %. The heating is carried out in rotary kilns.

2. Application:
Calcined Bauxite is typically classified according to its intended commercial application, such as abrasive, cement, chemical, metallurgical, and refractory. As raw material for use in high obtained by calcining (heating) superior grade