Monds process involves the reaction Ni(CO)4230∘C→Ni+4CO.
Van Arkel-de-Boer process involves the reaction Zrl4Δ→Zr+2l2.
Thermite process involves the reaction Cr2O3+2Al→Al2O3+2Cr.
Kroll process involves the reaction TiCl4+Mg1000−1150∘C→Ti+2MgCl2.
Self reduction involves the reaction 2CuO+CuS→3Cu+SO2.