what is the role of CO in extraction of iron

Dear Student,

Carbon Monoxide acts as a reducing agent in the extraction of iron from iron oxide.
Fe2O3 + 3CO 2Fe + 3CO2


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In temp 500-800K___It converts Fe2O3 to Fe2O4 then Fe3O4 to Fe and then Fe2O3 to FeO. In each case CO2 be liberated. At 900-1500K___It converts FeO to Fe (plus CO2).
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