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首页> 外文期刊>ISIJ international >Surface Reaction of Blast Furnace Slag under Hydrothermal Conditions
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Surface Reaction of Blast Furnace Slag under Hydrothermal Conditions

机译：水热条件下高炉矿渣的表面反应

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摘要

Hydrothermal treatment has various possibilities for adding value to blast furnace (BF) slag by forming hydroxide or hydrate crystals and introducing pores into the reaction product. To optimize the hydrothermal reaction process, understanding of the reaction behavior of BF slag during hydrothermal treatment is indispensable. In the present work, the mechanism of the hydrothermal reaction of BF slag was investigated by focusing on the reaction at the slag surface. The surface reaction behavior was reproduced using slag plate samples, which adjusted the effective amount of hot water participating in the reaction. The changes in the surface morphology of BF slag and synthesized CaO–SiO_(2)–Al_(2)O_(3)(–MgO) slags during hydrothermal treatment at 250°C were examined. The reaction mechanism of BF slag as well as the effect of MgO on the reaction were discussed from the observed phenomena.
机译：水热处理具有多种可能性，通过形成氢氧化物或水合物晶体并将孔引入反应产物中，从而为高炉渣增加价值。为了优化水热反应过程，了解水热处理过程中高炉渣的反应行为是必不可少的。在目前的工作中，通过集中在炉渣表面的反应来研究高炉渣水热反应的机理。使用渣板样品再现了表面反应行为，该样品调节了参与反应的热水的有效量。在250°C的水热处理期间，研究了高炉渣和合成的CaO–SiO_（2）–Al_（2）O_（3）（– MgO）炉渣的表面形态变化。从观察到的现象出发，探讨了高炉渣的反应机理以及MgO对反应的影响。

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