Which is the gangue in the blast furnace.
Answers
Answer:
Slag: these are the gangue components, i.e., ~ 41% CaO, ~ 6.0%MgO, ~ 14% Al2O3, ~ 34% SiO2. 3. Gas: after cleaning this is a valuable fuel, i.e., ~ 22% CO, ~ 22% CO2, ~ 4% H2, ~ 50% N2. Further refining of hot metal in a BOF (basic oxygen furnace) to remove carbon and residual impurities is required to produce steel.
Answer:
17.2.1 The blast furnace
A blast furnace is a reactor which produces an impure form of molten iron, termed ‘hot metal’, from ferrous bearing ores.
The principal raw materials used in the blast furnace operation consist of
1.
Metallurgical coke, ferrous bearing feeds and fluxes charged via the furnace top.
2.
Cold hydrocarbon fuels injected through the tuyeres near the furnace bottom.
3.
Hot oxygen-enriched air blast delivered through the same tuyeres.
Explanation:
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