Mining And Refining Bauxite Residue Utilisation
conversion of the bauxite residue to a useful material by modifying the compounds present in some way, e.g. acid mine drainage and heavy metal absorption. process changes at the refineries such as improved soda recovery and increased use of filter presses to generate a higher solids residue have become increasing common and resulted in the oct 04, 2018 bauxite from guinea is exported to refineries across the world, including in china, north america, and europe, where it is refined into aluminum for use in car and airplane parts and consumer two to three tonnes of bauxite are required to produce one tonne of alumina. 90% of the global alumina supply of around million tonnes is used in aluminium production. alumina refineries tend to be located close to bauxite mines andor ports for efficient transport of raw materials and of the final product.