Reaction Mechanisms of Blast Furnace Slag in Liquid and Vapor Dominated Hydrothermal Systems
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概要
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In order to develop an efficient process for the treatment of waste slag, the behavior of hydrothermal reaction of blast furnace slag has been investigated. For blast furnace slag, an experiment was conducted under various hydrothermal conditions with a liquid and vapor phase in the presence of saturated water steam pressure using an autoclave.The results indicated that calcium silicate hydrate (C-S-H) and tobermorite (Ca5Si6O16(OH)2·4H2O) were the major phases formed in the treated samples. It was also confirmed that the hydrothermal reaction process was strongly affected by the hydrothermal conditions. In particular, the hydrothermal reaction proceeded more rapidly in vapor phase than in liquid one. Accordingly, the reaction mechanism of the hydrothermal treatment of blast furnace slag has been clarified.
- 社団法人 日本鉄鋼協会の論文
- 2007-12-15
著者
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Morita Kazuki
Institute Of Industrial Science The University Of Tokyo
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Tae Soon-jae
Formerly Graduate Student At Inst. Of Industrial Sci. The Univ. Of Tokyo
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Tae Soon-jae
Institute Of Industrial Science The University Of Tokyo
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