Phase Equilibria Studies in the CaO-SiO2-Al2O3-MgO System with CaO/SiO2 Ratio of 1.10

被引：27

作者：

Ma, Xiaodong ^{[1
]}

Zhang, Dianwei ^{[2
]}

Zhao, Zhixing ^{[2
]}

Evans, Tim ^{[3
]}

Zhao, Baojun ^{[1
]}

机构：

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

[2] Shougang Res Inst Technol, Beijing 100043, Peoples R China

[3] Rio Tinto Iron Ore, Perth, WA 6000, Australia

来源：

ISIJ INTERNATIONAL | 2016年 / 56卷 / 04期

关键词：

phase equilibria; liquidus temperature; CaO-SiO2-Al2O3-MgO system; blast furnace slags; EPMA; BLAST-FURNACE; MELTING BEHAVIOR; SINTER; SLAG; ORE;

D O I：

10.2355/isijinternational.ISIJINT-2015-486

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 1.10 have been experimentally determined by means of high temperature equilibration and quenching technique followed by electron probe X-ray microanalysis. Isotherms in the interval of 20 K between 1 613 and 1 733 K were determined in the primary phase fields of dicalcium silicate, wollastonite, merwinite, periclase, spine! and melilite that are relevant to ironmaking slags. Effects of Al2O3, MgO and CaO/SiO2 ratio on the liquidus temperatures have been discussed to assist optimum operation of iron blast furnace. Compositions of the solid solutions corresponding to the liquidus have been accurately measured that will be used for development of the thermodynamic database.

引用

页码：513 / 519

页数：7

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