Aluminothermic process is used for the extraction of metals, whose oxides are:

Aluminothermic process involves reduction of oxides such as  ${\mathrm{Fe}}_2{\mathrm{O}}_3,{\mathrm{Mn}}_3{\mathrm{O}}_4,{\mathrm{Cr}}_2{\mathrm{O}}_3$ etc. to metal with aluminum

Aluminothermic process is used for the extraction of metals, whose oxides not easily reduced by carbon.