Silicon-Oxygen equilibrium and nitrogen distribution between CaO-SiO2 slags and liquid iron

Ryo Inoue, Hideaki Suito

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19 Citations (Scopus)


Silicon-oxygen equilibria in an Fe-0.003 ~ 27 mass pct Si alloy in equilibrium with the CaO-SiO2 slags were studied in the temperature range of 1823 to 1923 K using a lime crucible. At the same time, nitrogen distribution ratios, LN, between slag and metal were measured, and from these results and the reported values for activities of SiO2, nitride capacities, {Mathematical expression}, defined by (mass pct N). {Mathematical expression} were evaluated. It was found that the values for LN decreased, whereas those for {Mathematical expression} increased with an increase in temperature. Activities of SiO2 were determined using the values for LN and {Mathematical expression} obtained in previous gas-slag experiments. These values were compared with the previous results.

Original languageEnglish
Pages (from-to)613-621
Number of pages9
JournalMetallurgical Transactions B
Issue number5
Publication statusPublished - 1992 Oct 1

ASJC Scopus subject areas

  • Engineering(all)


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