None of these conditions were tested before on chromites.Hence, in the present invention, carbochlorination is performed with a salt such as NaCl, KCl and MgCl.sub.2 to produce a catalytic melt when NaCl combines with FeCl.sub.2 and/or FeCl.sub.3 so as to increase the volatilization (the removal) ofiron as gaseous FeCl.sub.3 from the carbochlorination reactor.MethodWhen the carbochlorination tempe