MetallurgyHard
Question
The smelting of iron in a blast furnace involves the following processes :
Options
A.combustion
B.reduction
C.slag formation
D.fusion
Solution
C + O2 → CO2 (combustion zone)
C + CO2 → 2CO (fusion zone) ; FeO + C → Fe + CO (fusion zone)
CaO + SiO2 → CaSiO3 (slag formation zone) ; FeO + CO → Fe + CO2 (slag formation zone)
3Fe2O3 + CO → 2Fe3O4 + CO2 (reduction zone) ; Fe3O4 + CO → 3FeO + CO2 (reduction zone)
C + CO2 → 2CO (fusion zone) ; FeO + C → Fe + CO (fusion zone)
CaO + SiO2 → CaSiO3 (slag formation zone) ; FeO + CO → Fe + CO2 (slag formation zone)
3Fe2O3 + CO → 2Fe3O4 + CO2 (reduction zone) ; Fe3O4 + CO → 3FeO + CO2 (reduction zone)
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