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Crystallization Kinetics and Continuous Cooling Transformation(CCT)Diagram of Molten Blast Furnace Slag

机译：熔融高炉炉渣的结晶动力学和连续冷却变换（CCT）图

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Blast furnace slag is one of the most abundant solid by-products in steel plants,thus recycling of slag is always one of the most important issues for steel plants.The use of blast furnace slag is associated closely with the cooling methods of molten slag.So the crystallization kinetics and continuous cooling transformation (CCT) diagram of a molten blast furnace slag were investigated in this paper.Samples of molten slag were continuously cooled in a differential scanning calorimetry (DSC) equipment.The continuous cooling crystallization kinetics was investigated using Kissinger method based on DSC data.It is shown that the obtained values of crystallization activation energy during cooling,1969±490 kJ/mol for gehlenite and 1021±25 kJ/mol for akermanite,are much higher than those reported during heating.A kinetic model that describes the evolution of degree of crystallization with time was obtained.The CCT diagram of the blast furnace slag was constructed according to crystallization kinetic model and experimental data.The obtained CCT diagram characterizes with two crystallization noses at different temperature ranges.
机译：高炉渣是钢铁厂中最丰富的固体副产品之一，因此炉渣的再循环始终是钢铁厂最重要的问题之一。高炉炉渣的使用与熔渣的冷却方法紧密相关。因此，研究了熔融高炉炉渣的结晶动力学和连续冷却变换（CCT）图。在差示扫描量热法（DSC）设备中，熔渣连续冷却熔渣的叠层。使用基辛格研究了连续冷却结晶动力学基于DSC DATA的方法。表明，冷却期间的结晶活化能值，1969±490 kJ / mol用于Gehlenite和1021±25kJ / mol用于Akermanite，远高于加热期间报告的那些。动力学模型所以描述了与时间结晶程度的演变。通过结晶构建高炉炉渣的CCT图动力学模型和实验数据。获得的CCT图表征了不同温度范围的两个结晶鼻子。

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