Sulphide Capacities of CaO-Al2O3-MgO and CaO-Al2O3-SiO2 Slags.
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概要
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The sulphide capacities of CaO-Al2-Al3, CaO-Al2O3-MgO and CaO-Al2O3-SiO2 slags were studied at 1823 to 1923 K to estimate the sulphur distribtion ratio between secondary steelmaking slag and liquid steel.From the obtained results, it was confirmed that substitution of MgO or SiO2 for CaO at a given NAl2O3 decreased the sulphide capacities in both systems of CaO=Al2O3-MgO and CaO-Al2O3-SiO2. The evaluated maximum values of sulphide distribution ratio for both slags were higher than 1000 at 1873 K on the condition of CaO-saturation if the dissolved aluminium content in steel was assumed to be 0.01 mass%.
著者
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KITAGAWA Susumu
Graduate School of Engineering, Kyoto University
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Ban-ya Shiro
Faculty Of Engineering Tohoku University
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Hino Mitsutaka
Faculty of Engineering, Tohoku University
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