Bauxite - Alumina - Aluminium
21.08.2015 08:05"Aluminium oxide (alumina) is extracted from bauxite in a refinery. Alumina is then used to produce primary aluminium."
"4-7 metric tons of bauxite = 2 metric tons of alumina = 1 metric ton of aluminium."
"While much of the mining sector’s focus has been on the iron ore market, bauxite has...