Extraction of Iron

• Process for extracting Iron

  1. Ore is crushed and mixed with carbon and limestone (CaCO3) and transferred into the blast furnace
  2. Carbon monoxide reduces Iron(III) oxide from the ore to iron
  3. The calcium oxide reacts with impurities like silica to form slag
• Carbon monoxide reduces Iron(III) oxide from the ore to iron

  $Fe_2O_{3\ +\ }3CO$ --> $3CO_2$
• The calcium oxide reacts with impurities like silica to form slag

  CaO + SiO2 --> CaSiO3 + CO2
• Uses of slag include making roads and cement