Ferrous oxide activity in FeO-TiO2-CaO-Al2O3 system

被引：9

作者：

Eissa, MM ^{[1
]}

ElFawakhry, KA ^{[1
]}

Tayor, W ^{[1
]}

ElFaramawy, H ^{[1
]}

Ahmed, AM ^{[1
]}

机构：

[1] HELWAN UNIV,FAC SCI,DEPT CHEM,CAIRO,EGYPT

来源：

ISIJ INTERNATIONAL | 1996年 / 36卷 / 05期

关键词：

ferrous oxide activity; FeO-CaO-Al2O3; system; FeO-TiO2-CaO-Al2O3; steelmaking slags;

D O I：

10.2355/isijinternational.36.512

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Ferrous oxide activity has been determined in molten synthetic slag mixtures of the quaternary system FeO-TiO2-CaO-Al2O3 al constant levels of Al2O3. Furthermore, in the course of determining the FeO activity in this quaternary system, the ternary system FeO-CaO-Al2O3 was also investigated at 1450 degrees C. The technique used to measure the ferrous oxide activity in the investigated systems was the well established one of gas-slag-metal equilibration in which molten slags contained in armco iron crucibles are exposed to a flowing gas mixture with a known oxygen potential until equilibrium has been attained. After equilibration, the final chemical analysis of the slags give compositions having a oxide activity corresponding to the oxygen potential of the gas mixture. The effect of Al2O3 additions on the FeO activity was determined. The results are presented as a series of iso-activity curves on pseudo-ternary diagrams. The interdependence between the ferrous oxide activities and slag composition was also studied.

引用

页码：512 / 516

页数：5

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