Thermodynamic Activity of MnO in CaO–SiO&lt;sub&gt;2&lt;/sub&gt;–MnO–FeO–MgO Molten Slags

Chen, Jianbin; Huang, Hong-Hong; Rong, Chu; Sun, Yongsheng

doi:10.2355/isijinternational.isijint-2020-730

Cited by 3 publications

(2 citation statements)

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“…The experimental device and the experimental process used in this research have been reported in detail in the determination of MnO and FeO activity. 18,19) But in order to measure the temperature of the melt in the crucible more accurately, the thermocouple was moved from the bottom of the crucible into the corundum crucible. The number of reaction crucibles in the corundum crucible was increased to six.…”

Section: Methodsmentioning

confidence: 99%

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Thermodynamic Activity of SiO2 in CaO–SiO2–Al2O3–MnO–MgO System Molten Slags

et al. 2022

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To understand the thermodynamic characteristics of the reaction between Al and SiO 2 during the continuous casting process of the high-aluminum steel, the activity coefficients of SiO 2 and MnO in molten slags of (18-43%) CaO-(33-64%) SiO 2 -(9-21%) Al 2 O 3 -(2-3%) MgO-( < 2.4%) MnO were measured at 1 400°C, 1 450°C and 1 500°C by the experiments of the Si and Mn equilibrium between liquid copper and molten slag in the graphite crucible under the mixed gas atmosphere of CO and Ar. The effects of SiO 2 , Al 2 O 3 , the basicity, the radio of CaO/Al 2 O 3 and the temperature on the activity coefficients of SiO 2 and MnO in molten slag were discussed. The quadratic regression relationships among the activity coefficient of SiO 2 or MnO, the concentration of component, the basicity and the temperature were investigated by the regression analysis method.

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Section: Methodsmentioning

confidence: 99%

“…Figures 1 and 2 show the effects of SiO 2 in the slag on the activity coefficients of SiO 2 and MnO at 1 400°C and 1 500°C, respectively. The reported results [4][5][6]18,22,23,25,26) are also illustrated in the figures for comparison. It can be seen from Fig.…”

Section: Effects Of Siomentioning

confidence: 99%