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Abstract

Measurements are made of the equilibrium concentrations of Al and S in liquid Fe coexistent with liquid calcium aluminate that is saturated with calcium sulphide and lime or calcium sulphide and an aluminate at 1600 and 1650°C. The solubility of calcium sulphide is measured at 1550 and 1600°C over the composition range of the liquid phase from aluminate to lime saturation: the solubility increases with increasing temperature and with increasing CaO/Al₂O₃ ratio in the melt. By combining the results of these equilibrium measurements with other equilibrium data for gas-slag-metal reactions, the equilibrium relations are derived for the distribution of S between slag and metal as functions of temperature and melt compositions.

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Equilibrium S distribution between molten calcium aluminate and steel

Abstract

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References