METHOD OF PROCESSING HIGH-IRON AND HIGH-SILICON BAUXITES

摘要

Use of: a high-iron production of alumina from bauxite in the combined embodiment, the Bayer-sintering. SUMMARY: The source bauxite subjected to calcination was subjected to classification and coarse fraction in the presence of reducing during firing of generated carbon monoxide. In this calcination is conducted at a partial pressure of carbon oxides is higher oxygen partial pressure and temperature of 400- 450 & amp; deg; C for 60-120 min, calcined bauxite is subjected to magnetic separation. A non-magnetic fraction is subjected to leaching. The resulting red slurry was fed to sintering. Table 3.