金属学报  1978, Vol. 14 Issue (4): 373-382

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熔锍Cu_2S与氢反应的动力学

刘纯鹏;郭有根;艾永衡

昆明工学院;昆明工学院;昆明工学院

THE KINETICS OF REACTION OF MOLTEN CUPROUS SULPHIDE WITH HYDROGEN

Liu Chun-peng Guo You-gen Ai Yong-heng (Kunming College of Engineering)

刘纯鹏;郭有根;艾永衡. 熔锍Cu_2S与氢反应的动力学[J]. 金属学报, 1978, 14(4): 373-382.
, , . THE KINETICS OF REACTION OF MOLTEN CUPROUS SULPHIDE WITH HYDROGEN[J]. Acta Metall Sin, 1978, 14(4): 373-382.

摘要 参考文献 相关文章 Metrics 全文: PDF(577 KB)   摘要: 本文研究了在1150℃,1200℃和1250℃下熔锍Cu_2S与氢反应的动力学。动力学方程式为: 单相熔体 u_(S％)=d(S％)/dτ=k_S(S％-a)~2P_(H_2)~(1/2) 分层区 u_S％=d(S％)/dτ=AP_(H_2)~(1/2) 通过测定反应速度与硫浓度状态曲线的转折点,验证了Cu-S系相图分层的数据,此数据含硫成分为: ℃ 1150 1200 1250 ％ 19.805 19.73 19.61 研究了温度对反应速度的影响,测得反应活化能E和反应速率常数k: E=11000卡/克分子Cu_2S k_(1150℃)=3.27×10~(-2)/分·S％·大气压1/2 k_(1200℃)=3.76×10~(-2)/分·S％·大气压1/2 k_(1250℃)=4.12×10~(-2)/分·S％·大气压1/2 实验数据表明,反应速度受温度的影响是不大的。 还讨论了Cu-S系相图与反应速度的关系。 Abstract：The kinetics of reaction of molten cuprous sulphide with hydrogen has been investigated at 1150, 1200 and 1250℃ respectively. The kinetics equations obtained are: for single phase, u_S％=d(S％)/dτ=k_S(S％-a)~2p_(H_2)~(1/2) for two phases coexisted, u_S％=d(S％)/dτ=AP_(H_2)~(1/2) The rates of these reactions were constant when certain phase transformation occurred or two phases coexisted. The plots of these reation-rates against concentration of sulphur according following equations: showed a turning-point for each temperature. At the turning point of reaction rate, its sulphur content in cuprous sulphide melts at the beginning to form two phases are 19.805, 19.73 or 19.61 wt.％ at 1150, 1200 or 1250℃ respectively.The reaction rate constant and its activation energy have been found to be:k_(1150·C)=3.27×10~(-2), k_(1200·C)=3.76×10~(-2)and k_(1250·C)=4.12×10~(-2) min~(-1), S％~(-1), atm~(-1/2) and E=11000 cal./mol of Cu_2S. Thus the effect of temperature on the reaction rate appears to be not remarkable.Discussion has been given on relation between the phase diagram of the Cu-S system vs their reaction rates. 收稿日期: 1978-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 刘纯鹏 郭有根 艾永衡 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1978/V14/I4/373 [1] Wright, J. H. et al., Met. Trans., 245 (1972) , 1749． [2] Small, W. M. et al., Met. Trans., 4 (1973) , 2045． [3] Byerley, J. J. et al., Met. Trans., 4 (1973) , 1507． [4] Aynsley, E. E. et al., Quart. J. Chem. Sco., London, (1935) , 65． [5] Schuhmann, R. Jr. and Moles, O. W., Trans. Amer. Inst. Mining Met. Eng., 191 (1951) , 235． [6] 柳喬哲夫,日本鉱業会誌,78(1962) ,№ 883(1) ,43． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed