EFFECTS OF Na2O and BaO ADDITIONS ON PHOSPHORUS DISTRIBUTION BETWEEN CaO-MgO-FetO-SiO2 SLAGS AND LIQUID IRON.

Hideaki Suito, Ryo Inoue

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

Experiments have been made to study the effect of Na//2O(7-13 wt%) and BaO(4wt%) additions on the phosphorus distribution between liquid iron and CaO-MgO-Fe//tO-SiO//2-P//2O//5( less than equivalent to 1 wt%) slags at 1550 degree C. The effect of Na//2O and BaO on the logarithm of the equilibrium quotient is 1. 2 and 0. 9 times as large as that of CaO. The effect of Na//2O or BaO on the activity coefficients of P//2O//5 was also studied by Turkdogan and Pearson's treatment. Activity coefficients of Fe//tO decrease with the addition of Na//2O but does not change with the addition of BaO. The dephosphorization equilibrium is discussed on the basis of the theoretical optical basicity proposed by Duffy and Ingram.

Original languageEnglish
Pages (from-to)47-53
Number of pages7
JournalTransactions of the Iron and Steel Institute of Japan
Volume24
Issue number1
DOIs
Publication statusPublished - 1984 Jan 1

ASJC Scopus subject areas

  • Engineering(all)

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