What redox reactions occur in an iron foundry?

Question

Cameron Andrews · Accepted Answer

(i) oxidation of carbon and carbon monoxide to carbon dioxide; (ii) reduction of ferric oxide to iron.

#"Oxidation"# #C(s) + 1/2O_2(g) rarr CO(g)# #"Reduction"# #Fe_2O_3(s) + 3CO(g) rarr 2Fe(l) + 3CO_2(g)# You feel very small given the size and sound of the furnace. If you ever get the chance to visit a working blast furnace, where hot gases are blasted thru a pile of coke and ore to give iron, do so.

Avery Adams · Answer

undefined In an iron foundry, redox reactions involving iron are common. One example is the reduction of iron ore (Fe2O3) to iron (Fe) using carbon monoxide (CO) in a blast furnace:

Fe2O3 + 3CO -> 2Fe + 3CO2

Another example is the oxidation of iron to form iron oxide (rust) when exposed to oxygen and moisture:

4Fe + 3O2 + 6H2O -> 4Fe(OH)3

These redox reactions are fundamental to the production and degradation of iron in foundry processes.

Ellie Andrews · Answer

undefined In an iron foundry, one common redox reaction that occurs is the reduction of iron ore (Fe2O3) to iron (Fe) using carbon monoxide (CO) as the reducing agent:

Fe2O3 + 3CO -> 2Fe + 3CO2

Another redox reaction involves the oxidation of carbon (C) to carbon dioxide (CO2) during the combustion of coke, a form of carbon used as fuel in the foundry:

2C + O2 -> 2CO2

Additionally, the oxidation of impurities such as sulfur (S) and silicon (Si) may occur during the smelting process:

S + O2 -> SO2
2Si + 3O2 -> 2SiO2