The reaction Fe2O3+CO→CO2+Fe occurs in the blast furnace in the temperature range 900∘C.
The reaction C+CO2→CO occurs in the blast furnace in the temperature range 1100∘C.
The reaction C+H2O→CO+H2 occurs in the blast furnace in the temperature range 600∘C.
The reaction CaO+SiO2→CaSiO3 occurs in the blast furnace in the temperature range 1200∘C.