REDUCTION KINETICS OF MOLYBDENUM OXIDE IN SLAG

The reduction rate of Mo oxide in slag by iron-carbon melt under diffe rent stirring conditions, reaction temperatures and slag composition h as been investigated. Results indicate that the reduction of Mo oxide is a fast reaction; both stirring and temperature have evident influen ce upon the reaction; while the initial concentration of Mo oxide and content of fluoride in slag have also some influence upon the reaction . The reduction of Mo oxide is an apparent first order reaction. At 14 40-1500-degrees-C, the reduction rate of Mo oxide is mainly controlled by Mo transfer in slag, with its diffusion activation energy of 223 k J/mol. At 1500-1590-degrees-C, the transfer of Mo in metal turns to be the main limiting step, with its diffusion activation energy of 81.5 kJ/mol.