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金属学报  1991, Vol. 27 Issue (1): 145-147    
  论文 本期目录 | 过刊浏览 |
PbS和PbO·SiO_2交互反应动力学
李诚;刘纯鹏
北京有色冶金设计研究总院;昆明工学院
KINETICS OF INTERACTION BETWEEN PbS AND PbO·SiO_2
LI Cheng Beijing Central Engineering and Reseorch Institute for Non-Ferrous Metallurgical Industry; LIU Chunpeng Kunming Institute of Technology
引用本文:

李诚;刘纯鹏. PbS和PbO·SiO_2交互反应动力学[J]. 金属学报, 1991, 27(1): 145-147.
, . KINETICS OF INTERACTION BETWEEN PbS AND PbO·SiO_2[J]. Acta Metall Sin, 1991, 27(1): 145-147.

全文: PDF(218 KB)  
摘要: 本文研究了T=900—1100℃时,PbS和PbO·SiO_2的交互反应。得出函数F(α)=(0.5-α)/((1-α)~(5/3))与t的直线关系。认为反应前期是化学控制,反应后期是扩散控制,计算出化学反应活化能ΔE=140kJ/mol,扩散活化能ΔE_D=105.8kJ/mol。
关键词 PbSPbO·SiO_2反应模型反应界面活化能    
Abstract:The kinetics of interaction between PbS and PbO.SiO_2 at 900--1100℃has been studied. A function F(α)=(0.5-α)/(1-α)~(5/3), α being the ratio of SO_2 evolvedin time τ to the total SO_2 to be escaped, is revealed as straight line on a plotagainst τ. The reaction seems to be under chemical or diffusion control during theprior or later stage, of which the activation energy calculated is △E=140 or △E_D=105.8 kJ/mol, respectively.
Key wordskinetics    PbS    PbO.SiO_2    chemical control    diffusion control    activation energy
收稿日期: 1991-01-18     
1 陆跃华,刘纯鹏.金属学报,1988;24:B50
2 Gaskell D R.见:中国金属学会编译组译,化学冶金进展评论.北京:冶金工业出版社,1985:97x
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