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| THE KINETICS OF REACTION BETWEEN Cu_2s-Cu SYSTEM MELTS AND HYDROGEN |
| Liu Chunpeng;Feng Ganming;Yan Chuanyi;He Aiping Kunming College of Technology; Kunming |
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Cite this article:
Liu Chunpeng;Feng Ganming;Yan Chuanyi;He Aiping Kunming College of Technology; Kunming. THE KINETICS OF REACTION BETWEEN Cu_2s-Cu SYSTEM MELTS AND HYDROGEN. Acta Metall Sin, 1982, 18(2): 153-163.
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Abstract 1.The kinetics of reaction between Cu_2S-Cu system melts and H_2 has been studied at 1150,1200,1250 and 1300℃ respectively.Their equations are: for S-rich single phase,u_S=0.717 exp(-(53.137)/(RT))(S%-α)~2p_(H_2)~(1/2)+const. for misc.gap,u_S=0.531 exp(-(67.259)/(RT))p_(H_2)~(1/2) For Cu-rich phase,u_S=44.6 exp(-(146.720)/(RT))p_(H_2)~(1/2)·S%+const. These desulphurization rate are mainly dependent upon the S concentration of melt except the miscible gap.At constant temperature and H_2 partial pressure,their sequence is u_(S(h))>u_(S(m))>u_(S(l)). 2.The mathematic model of desulphurization and activities of S and Cu in relationship to the structure of Cu-S phase diagram are: for S-rich single phase (α=19.81-19.61%S), (?)=A(constant) for miscible gap (b=1.2-19.8%S), (?)=0 for Cu-rich single phase,(0
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Received: 18 February 1982
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