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The use of solid state carbothermic reduction as a precursor to the smelting of transition metal ores was examined.The advantages of the introduction of a prereduction stage include enabling the more efficient use of fines and the achievement of higher energy efficiencies.A solid state reduction using carbon as the reductant offers a simpler alternative for their treatment.Subsequent treatment of the reduced material could include intensive bath smelting to produce ferroalloys or,in some case,solid state separation of the transition metal carbide where this has commercial significance.
The use of solid state carbothermic reduction as a precursor to the smelting of transition metal ores was examined. Advantages of the introduction of a prereduction stage include enabling the more efficient use of fines and the achievement of higher energy efficiencies. A solid state reduction using carbon as the reductant offers a simpler alternative for their treatment. Subsequent treatment of the reduced material could include intensive bath smelting to produce ferroalloys or, in some case, solid state separation of the transition metal carbide where this has commercial significance.