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논문 기본 정보

자료유형
학술저널
저자정보
Jung, Woo-Gwang (School of Materials Science and Engineering, Kookmin University) Hossain, Sakib Tanvir (Department of Materials Science and Engineering, Graduate School of Kookmin University) Kim, Jong-Ho (Advanced Metals Research Group, Research Institute of Industrial Science and Technology [RIST]) Chang, Young-Chul (Department of Mechatronics Engineering, Korea University of Technology and Education)
저널정보
한국재료학회 한국재료학회지 한국재료학회지 제29권 제10호
발행연도
2019.1
수록면
592 - 602 (11page)

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Feasibility is investigated for reduction of chromium ore by Si sludge with mixed silicothermic and carbothermic reaction. The reduction behavior of chromium ore using Si sludge is investigated precisely to determine the effects of carbon addition, reaction time, and reaction temperature. The pellets are dropped into the furnace after temperature stabilized. As the amount of C addition increases, the amounts of CO and $CO_2$ gas generation increase. After the dropping of the pellets, the pellets are heated and the reaction starts at about 1,573 K or higher. The pellets maintain their shape until 10 min after the drop, and then melted. As the holding time increased, the size of the reduced metal particles increased. The chromium ore is rapidly reduced by the Si sludge, and the slag penetrated into the chromium ore and reduction progressed inside. As the reduction temperature increased, the reaction initiation time is shortened and the reaction fraction of the reduction reaction increased. As the reaction temperature increased, agglomeration of reduced ferrochrome metal is promoted.

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