iron oxide Making iron: (haematite) the blast furnace 冲天炉 coke limestone waste waste gases gases carbon monoxide carbon dioxide + iron iron oxide iron fomms carbon dioxide carbon carbon + monoxide carbon monoxide fomms carton oxygen-carbon dioxide carbon dioxide air blast fomms air blast molten slag molten iron In one continuous process,the coke and fluxed pellets are charged into the furnace. blasted with superheated air and natural gas; up to 3000 F(Fahrenheit)In one continuous process, the coke and fluxed pellets are charged into the furnace, blasted with superheated air and natural gas; up to 3000 F (Fahrenheit)