Nonisothermal Investigation of Reaction Kinetics between Electric Arc Furnace Dust and Calcium Chloride under Carbon-Containing Conditions

The volatilization of zinc in the electric arc furnace dust–CaCl2 and ZnFe2O4–ZnO–CaCl2–C reaction systems was investigated. Experiments were conducted under an N2 atmosphere infrared lamp heating furnace, activation energy rate determined by Ozawa method. system 123 ± 27 kJ/mol; when dust decarburized, reduced to 84 4 kJ/mol. Further, simultaneous carbothermic reduction carbon contained chloride improved rate. In temperature range where chlorination occur simultaneously, is favored. metal oxides inhibits zinc, reducing energy.