MetallurgyHard

Question

The reaction(s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are) :

Options

A.Fe2O3 + CO → 2 FeO + CO2
B.FeO + CO → Fe + CO2
C.Fe2O3 + 3C → 2Fe + 3CO
D.CaO + SiO2 → CaSiO3

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)

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