발간논문

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Vol.20, No.4, 344 ~ 350, 1982
Title
Reduction of Stibnite by hydrogen
유용주Yong Zoo You, 박태선Tai Sun Park, 김준수Jun Soo Kim, 오재현Jae Hyun Oh
Abstract
A study on the reduction of stibnite by hydrogen in the presence of sulfur acceptors such as MgO and CaO was carried out at the temperature ranging from 450℃ to 500℃. Possible reduction mechanism for the reaction was discussed with the experimental kinetic data obtained in this investigation. The results obtained in this work are as follows: 1) The rate of reduction was increased by increasing the temperature and the amount of sulfur acceptor added and as being small the particle size. 2) The overall reduction rate of stibnite was controlled by the chemical reaction and the activation energy was found to be about 23 ㎉/㏖. 3) The effect of magnesium oxide on the reduction rate was greater than that of calcium oxide.
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