Cengizler H.Eric R.H.2024-07-222024-07-222016http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15944Equilibrium between MnO-CaO-MgO-SiO2-Al2O3 slags and carbon saturated Mn-Si-Fe-C alloys was investigated under CO at 1500oC. Manganese and silicon activities were obtained by using the present data and the previously determined MnO and SiO2 activities of the slag. Quadratic multi-coefficient regression equations were developed for activity coefficients of manganese and silicon. The conclusions of this work are:(i)increase in the basicity and the CaO/Al2O3 ratios decreases the Mn distribution ratio,(ii)increase in the silica concentration and the MgO/CaO ratio increases the Mn distribution ratio, iii)carbon and manganese as well as carbon and silicon of the metal phase are inversely proportional,(iv)as Mn/Fe and Mn/Si ratio increases in the metal the carbon solubility increases,(v)decrease in the basicity increases the silicon content of the metal and (vi)increase in the silica content of the slag increases the silicon content of the metal and this effect is more pronounced at the higher Mn/Fe and Mn/Si ratios. © 2016 by The Minerals, Metals & Materials Society.EnglishAluminaAluminum oxideFerroalloysIron alloysIron oresMagnesiaManganese oxideMetalsPhase equilibriaSaltsSilicaSilicon alloysSilicon oxidesSlagsCarbon solubilityDistribution ratioFerromanganeseMnO-CaO-MgO-SiO2-Al2O3Regression equationSilica concentrationsSilicomanganeseSilicon contentsManganese alloysConference paper10.1007/978-3-319-48769-4_142