Evaporation Kinetics of the Molten PbCl_2-ZnCl_2 System from 973 to 1073K
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概要
- 論文の詳細を見る
The clarification of chlorides evaporation behavior from chloride or oxychloride melts is quite important for the treatment and recycling of fly ash generated from incineration processes of municipal solid waste. In the present study, the evaporation rate of the molten PbCl2–ZnCl2 binary chloride system was measured at 973, 1023 and 1073 K. The effects of temperature, composition of the melt and the oxygen partial pressure of atmosphere on the evaporation rate of molten chloride were investigated. The ZnCl2 in chloride melt evaporated preferentially, but the evaporated amount of PbCl2 was negligibly small. Calculated activation energy of ZnCl2 evaporation was 194±4 kJ/mol and that evaporation rate was smaller than that estimated from ZnCl2 activity for the PbCl2–ZnCl2 system. Therefore, the evaporation is considered to be controlled by the slower chemical reaction step than the interfacial evaporation reaction. The evaporation rate increased with increasing oxygen partial pressure in the atmosphere, which might be due to the effect of oxychloride formation.
- 社団法人 日本鉄鋼協会の論文
- 2007-03-15
著者
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Tsukihashi Fumitaka
Graduate School of Frontier Sciences, The University of Tokyo
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TSUKIHASHI Fumitaka
Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of To
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Tsukihashi Fumitaka
Department Of Advanced Materials Graduate School Of Frontier Science The University Of Tokyo
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Matsuura Hiroyuki
Center For Iron And Steelmaking Research Department Of Materials Science And Engineering Carnegie Me
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WANG Canguo
Department of Ferrous Metallurgy, School of Metallurgical and Ecological Engineering, University of
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HU Xiaojun
Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of
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Tsukihashi F
Department Of Advanced Materials Science Graduate School Of Frontier Sciences The University Of Toky
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Hu Xiaojun
Department Of Physical Chemistry School Of Metallurgical And Ecological Engineering University Of Sc
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Hu Xiaojun
Department Of Chemistry Tongji University
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Wang Canguo
Department Of Ferrous Metallurgy School Of Metallurgical And Ecological Engineering University Of Sc
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Tsukihashi Fumitaka
Department Of Advanced Material Science The University Of Tokyo
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