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Thermodynamic data for liquid Ca‐CaF 2 and Ca‐CaCl 2 slags
Author(s) -
Fischbach Harald
Publication year - 1985
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198500649
Subject(s) - liquidus , lime , chemistry , slag (welding) , phase diagram , calcium , impurity , metallurgy , activity coefficient , thermodynamics , phase (matter) , mineralogy , materials science , physics , organic chemistry , aqueous solution
Activities of calcium in the systems Ca‐CaF 2 and Ca‐CaCl 2 were measured as a function of concentration with help of the distribution method between slag and Ca‐Ag alloys. Activity coefficients greater than 1 were found for both systems at 1 425°C and 995°C. The liquidus of CaO for the Ca‐CaO phase diagram was remeasured with respect to mixtures of lime with calcium halogenide slags. Influence of the activity of calcium on the distribution of impurities between steel and halogenide slags are discussed.