Phase Equilibria in the CaO-SiO2-Al2O3-MgO System with CaO/SiO2 Ratio of 1.3 Relevant to Iron Blast Furnace Slags

被引：33

作者：

Ma, Xiaodong ^{[1
]}

Wang, Geoff ^{[1
]}

Wu, Shengli ^{[2
]}

Zhu, Jinming ^{[2
]}

Zha, Baojun ^{[1
]}

机构：

[1] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

[2] Baoshan Iron & Steel Baosteel Co Ltd, Shanghai 201900, Peoples R China

来源：

ISIJ INTERNATIONAL | 2015年 / 55卷 / 11期

关键词：

liquidus temperature; CaO-SiO2-Al2O3-MgO system; BF slag; EPMA; MELTING BEHAVIOR; SINTER; AL2O3; ORE;

D O I：

10.2355/isijinternational.ISIJINT-2015-263

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Phase equilibria and liquidus temperatures in the CaO-SiO2-Al2O3-MgO system with CaO/SiO2 weight ratio of 1.30 have been experimentally determined by means of high temperature equilibration and quenching technique followed by electron probe X-ray microanalysis. Isotherms between 1 723 and 1 773 K were determined in the primary phase fields of melilite, dicalcium silicate, spinel, merwinite and periclase that are relevant to ironmaking slags. Effects of Al2O3, MgO and CaO/SiO2 ratio on the liquidus temperatures have been discussed. Compositions of the solid phases corresponding to the liquidus have been accurately measured that will be used for development of the thermodynamic database.

引用

页码：2310 / 2317

页数：8

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