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The equilibrium between ferrosilicon and SiO_2-Al2O_3-CaO ternary slag have been experimentally investigated using graphite crucible at 1550°C. The Al and Ca contents in ferrosilicon were given in terms of isoconcentration curves in equilibrium with the ternary slag of SiO_2-Al_2O_3-CaO. The present experimental work provides available data to analyze the behavior of Al and Ca during oxidation refining process for silicon alloy.
The equilibrium between ferrosilicon and SiO 2 -Al 2 O 3-CaO ternary slag have been experimentally investigated using graphite crucible at 1550 ° C. The Al and Ca contents in ferrosilicon were given in terms of isoconcentration curves in equilibrium with the ternary slag of SiO 2 -Al 2 O 3 -CaO The present experimental work provides data to analyze the behavior of Al and Ca during oxidation refining process for silicon alloys.