金属学报  1986, Vol. 22 Issue (6): 92-94

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Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2体系的反应动力学

华一新;刘纯鹏

昆明工学院;昆明工学院

THE REDUCTION KINETICS OF Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2 SYSTEM

by HUA Yixin; LIU Chunpen (Kunming Institute of Techology)

华一新;刘纯鹏. Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2体系的反应动力学[J]. 金属学报, 1986, 22(6): 92-94.
, . THE REDUCTION KINETICS OF Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2 SYSTEM[J]. Acta Metall Sin, 1986, 22(6): 92-94.

摘要 参考文献 相关文章 Metrics 全文: PDF(247 KB)   摘要: <正> 在铜的火法冶金中,如何减少磁性氧化铁对冶炼过程的危害,一直是人们极为重视的问题,尽管人们对此问题作过一些研究,但涉及动力学方面的工作不多,因此,深入研究Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2体系的反应动力学就具有特别重要的实际意义。 本文通过测定反应产生的SO_2来考察反应的进程,实验设备参见文献。 1.造渣熔剂对反应速度的影响 冰铜对磁性氧化铁的还原是按下列反应进行的: Abstract：The reduction kinetics of Fe_3O_4-(xFeS·yCu_2S)-FeO-SiO_2 system has been investigated against the slagging flux, silica granule size, mattegrade, initial magnetite content and temperature. The experimental results showed that the reaction rate increases with decreasing αFeO, matte grade and silica granule size as well as with increasing temperature. The reaction rate is controlled by the slagging reaction if the matte is saturated with Fe_3O_4, and by the reaction between S and O_2 in the melt if the matte is not saturated with Fe_3O_4. The corresponding rate equations can be expressed as: γSO_2=2.8×10~7exp(-154200/RT)W_(SiO_2)~(2/3)-α (1150-1300℃) γSO_2=3.1×10~8exp(-237900/RT)(%OFe_3O_4-b)~2(%S) (1200-1300℃) The activation energy for the reactions was found to be E_α=154.2 and E_b=237.9 kJ/mol respectively. 收稿日期: 1986-06-18      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 华一新 刘纯鹏 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I6/92 1 Liu Chunpeng (刘纯鹏); Feng Ganming (冯干明); Yan Chuanyi (来传仪); He Aiping (何蔼平), First China-USA Bilateral Metallurgical Conf., Nov. 1981, Beijing China, p. 137． 2 叶大伦,实用无机物热力学手册,冶金工业出版社,1981． p.337． 3 冶金部情报标准研究所,闪速熔炼译文集,1975,p.85． 4 Johannsen, F.; Knahl, H., Z. Erzbergbau Metallhuettenwes., 12 (1963) , 611． 5 Yazawan, A.; Kameda, M., Neutral Dissolution Between Matte and Slag Produced in System Cu_2S-FeS-FeO SiO_2, Technology Report ⅩⅠⅩ (V, № 2) , Tohoku University, Sendai, Jpn, 1955． 6 Elliott, J.F.; Mounier, M., Cand. Metall. Q., 21 (1982) , 415．6 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed