GATE MT 2021 Q36. A blast furnace uses hematite ore with 80% Fe2O3 and 20% gangue materials. It uses 600 kg coke per ton of hot metal. The coke contains 85% C and 15% ash. The composition of hot metal is 95.5% Fe and 4.5% C. The weight of iron ore used and slag produced per ton of hot metal respectively, are: Given: Atomic weight: O = 16, C = 12, N = 14, Fe = 56 All the compositions are in wt.%. 1 ton = 1000 kgAssume that the gangue materials of the ore and ash content of coke form slag while Fe2O3 in the ore is consumed in making hot metal.