발간논문

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Vol.40, No.2, 237 ~ 244, 2002
Title
Materials Processing : A Study on the Reduction Behavior of Carbon - Iron oxide Pellet
차영재Y . J . Cha,유병돈B . D . You,최응수E . S . Choi,이덕원D . W . Lee,김태훈T . H . Kim,한정환J . W . Han
Abstract
Reduction behaviour of iron oxide(Fe_2O_3) in carbon-iron oxide pellets was investigated in the temperature range of 1100-1500℃. The unreacted oxygen and carbon content in the pellet as well as the reduction degree of the iron oxide which depends on the reaction time were evaluated by means of the off-gas analysis. The reduction rate of iron oxide was very fast. The apparent reduction degree of iron oxide above 90% is obtained in about 10 minutes of reaction time. In the initial stage of reaction, up to about 80% of reduction degree of iron oxide, the reaction is controlled by the gasification reaction of carbon. The empirical rate equations for the reduction reaction of iron oxide were derived, and which agreed well with experimental values.
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