Question

Write the different reaction involved in blast furnace

Answer 1

the different reaction involved in blast furnace:

(1) 3Fe2O3 + CO   →  2Fe3O4 + CO2

(2) Fe3O4 + 4CO   →  3Fe  + 4CO2

(3) Fe2O3 + CO    →  2Fe3 + CO2  

The reactions taking place in the higher temperature range (900 - 1500 K) in the blast furnace are:

(4) C +CO2   →  2CO

(5) FeO + CO  → Fe  + CO2

The silicate impurity of the ore is removed as slag by calcium oxide (CaO), which is formed by the decomposition of limestone (CaCO3).

(6) CaCO3  →  CaO  + Co2

(7) CaO + SiO2   →  CaSiO3

Answer 2

reaction takes can take place at a normal temperature but in blast furnace reaction takes place at high temperature