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Cyclicvoltamme Study on the Cathodic Behavior of CaO in CaCl2 and equalar mole CaCl2-X(X=NaCl, BaCl2, LiCl) Melts |
东北大学 |
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Cite this article:
. Cyclicvoltamme Study on the Cathodic Behavior of CaO in CaCl2 and equalar mole CaCl2-X(X=NaCl, BaCl2, LiCl) Melts. Acta Metall Sin, 2008, 44(6): 735-738 .
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Abstract CaOˇs decomposition is an important reaction in the new titanium refining processes and is one of the key factors to affect the current efficiency and the energy consumption of the new titanium refining processes. In present work, the cathodic behaviors of CaO in CaCl2-0.5mol%CaO, equal molar CaCl2-NaCl-0.5mol%CaO, CaCl2-BaCl2-0.5mol%CaO and CaCl2-LiCl-0.5mol%CaOmelts were studied by cyclicvoltamme technique systematically. The reduced potentials of Ca2+ from CaCl2 and from CaO are different. NaCl doesnˇt affect the reduced potential of Ca2+ from CaO(hereafter named simply as φCa2+/Ca (⒐)), LiCl increases φCa2+/Ca (⒐) slightly, BaCl2 decreases φCa2+/Ca (⒐) evidently. The diffusion coefficients of Ca2+ from CaO in CaCl2-0.5mol%CaO, equal molar CaCl2-NaCl- 0.5mol%CaO, CaCl2-BaCl2-0.5mol%CaO and CaCl2-LiCl-0.5mol%CaO melts at 1173K were obtained.
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Received: 13 August 2007
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