Bauxite residue (BR) contains typically 20 to 50% iron oxide. A full valorisation of the BR requires that this iron is returned to the market. It is not difficult to recover this iron as pig iron, but the market price for pig iron is too low to make this economically viable. Iron alloys with high...

De fleste vet at metaller lages fra malm, men hvordan lager man egentlig «gull av gråstein»? Det er akkurat den prosessen vi må forstå for å kunne gjøre metallindustrien klimavennlig. Her er alternativene for CO₂-fri metallproduksjon....