CALCIUM DEOXIDATION EQUILIBRIUM IN LIQUID-IRON

被引：72

作者：

KIMURA, T

SUITO, H

机构：

[1] SUMITOMO MET IND LTD, KASHIMA STEEL WORKS, AMAGASAKI, HYOGO 660, JAPAN

[2] TOHOKU UNIV, INST ADV MAT PROC, SENDAI, MIYAGI 980, JAPAN

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1994年 / 25卷 / 01期

关键词：

D O I：

10.1007/BF02663176

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Calcium-oxygen equilibrium was studied at 1873 K under normal pressure by the method of immersing a pure iron capsule containing calcium metal into liquid iron, which was equilibrated with CaO-Al2O3 slags in Al2O3 and CaO crucibles. On the basis of these and previous results obtained in the equilibrium experiments between liquid iron and CaO-containing slags, the equilibrium constant, K(Ca), for the reaction, CaO (s) = Ca + O, and the first-order interaction parameter, e0Ca, were estimated. The measured value for K(Ca) reported in previous experiments, which was found to be significantly different from that calculated from the reliable thermodynamic data, was discussed. Nitro-en distribution ratios between CaO-Al2O3 slags and liquid iron were also measured.

引用

页码：33 / 42

页数：10

共 21 条

[1]

Elliott J. F., 1963, THERMOCHEMISTRY STEE, VII

[2]

GUSTAFSSON S, 1980, SCAND J METALL, V9, P111

[3] THE CALCIUM-PHOSPHORUS AND THE SIMULTANEOUS CALCIUM-OXYGEN AND CALCIUM-SULFUR EQUILIBRIA IN LIQUID-IRON [J].