Question

explain the process of producing alumina from bauxite

Answer 1

the separation of Alumina from impurities in the bauxite Ore is usually accomplished by the bear process. In this process the ground bauxite is least with caustic soda to produce soluble sodium aluminate living the impurities in the insoluble Residue. The eliminate solution is mainly composed producing Al(OH)3 which is confined to produce Al2O3

Answer 2

Alumina Refining | The Aluminum Association The Bayer process: How alumina is produced from bauxite. The Bayer process is carried out in four steps. First, after the bauxite is crushed, washed and dried, it is dissolved with caustic soda at high temperatures. Next, the mixture is filtered to remove the impurities, called “red mud,” which is properly discarded.