RReduction of oxideMetallothermic reduction or Thermit (welding) process• In case of using Al as reductant, the process is called Thermit or AluminoThermic or Metallo-thermic processFe2O3 (s) + 2Al (s) = Al2O3(s) + 2Fe (l) Thermit welding• Instead of Al, other metallic reducing agent such as Si, Mg, Ca are also used