A THERMODYNAMIC STUDY OF BAO+BACL2+CR2O3 FLUXES USED FOR THE REMOVAL OF PHOSPHORUS FROM CHROMIUM-CONTAINING IRON MELTS

被引：6

作者：

INOUYE, TK

FUJIWARA, H

ICHISE, E

IWASE, M

机构：

[1] Department of Energy Science and Engineering, Kyoto University, Kyoto

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1994年 / 25卷 / 05期

关键词：

D O I：

10.1007/BF02655177

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical measurements with solid-oxide galvanic cell of the type Mo/Mo + MoO2//ZrO2(MgO)//{Cu + Cr}(alloy) + (Cr2O3)(slag)/Mo were conducted at 1473 K in order to obtain the activities of Cr2O3 in BaO + BaCl2 + Cr2O3 slags used for dephosphorization of chromium-containing iron melts. Based on the activity measurements, it is concluded that in the system BaO + BaCl2 + Cr2O3 at 1473 K, there are 1 two-phase region in saturation with pure Cr2O3(s) and 3 three-phase regions. The activities of Cr2O3 within such three-phase regions decrease with an increase in BaO/BaCl2 mole ratios. The Cr2O3 activities in BaO + BaCl2 + Cr2O3 fluxes are, in general, greater than those in CaO + CaCl2 + Cr2O3, corresponding to much more effective dephosphorization by BaO + BaCl2 + Cr2O3 fluxes rather than CaO + CaCl2 + Cr2O3 slag.

引用

页码：695 / 701

页数：7

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