발간논문

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Vol.21, No.6, 566 ~ 576, 1983
Title
On the Study of Oxidation Kinetics of Molybdenite pellets
김준수Jun Soo Kim, 김현근Hyun Gun Kim, 오재현Jae Hyun Oh
Abstract
Oxidation roasting of molybdenite pellets was carried out to study the effect of temperature and oxygen concentration on the oxidation rate. The effect of heat transfer between pellet and surroundings on the reaction rate was also studied by measuring the temperature of pellet during reaction. The result obtained in this experiments are as follows; 1) The effect of heat transfer on the reaction rate was significant at the beginning of the oxidation processes. 2) The temperature difference between pellet and surroundings was increased with increasing the reaction temperature and the oxygen concentration. And the larger the difference of the temperature, the more the effect of heat transfer on the reaction rate. 3) The activation energies calculated from these experimental conditions were of the order of 34㎉/㏖ and 11㎉/㏖ for the non-isothermal and isothermal periods, respectively. And the oxidation rate of the molybdenite was mainly depended on diffusion rate.
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