Slag foaming in smelting reduction processes

K. Ito*, Richard J. Fruehan

*この研究の対応する著者

研究成果: Article査読

7 被引用数 (Scopus)

抄録

In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250-1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag and by the foam life. The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. The results were extrapolated to the bath smelting process to predict the foam height. Slag foaming heights as high as 3-5 meters are predicted for a typical operation.

本文言語English
ページ(範囲)151-156
ページ数6
ジャーナルSteel Research
60
3-4
DOI
出版ステータスPublished - 1989 1月 1
外部発表はい

ASJC Scopus subject areas

  • 金属および合金

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