발간논문

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Vol.27, No.8, 698 ~ 706, 1989
Title
Development of ferrochrome Production Process by smelting Reduction with Coal (1) ( Effects of Slag composition and Temperature on smelting Reduction of Chromite Ore with solid Carbon )
정석광Suk Kwang Jung, 박대규Dae Gyu Park, 조종민Jong Min Cho, 이일옥Il Ock Lee, 김영준Young Jun Kim
Abstract
The effects of slag competition and smelting temperature on the smelting reduction of chromite ore from South Africa was investigated using the high frequency induction furnace(100 Kg/Ch.). The results obtained are summarized as follows. Chromite content in molten slag were rapidly reduced when the slag`s basicity was higher than 1.0. The reduction rate of chromite in molten slag rapidly increased as the reaction temperature increased and the apparent activation energy of whole reaction was determined to be 143㎉/㏖. (MgO), and (Al₂O₃) in the slag which precipitated on the surface if chromite particle seemed to reduce the rate of reduction and dissolution of Cr oxide.
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