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

共 50 条

[21] Activities of SiO2 and Al2O3 and activity coefficients of FetO and MnO in CaO-SiO2-Al2O3-MgO slags
Hiroki Ohta
Hideaki Suito
Metallurgical and Materials Transactions B, 1998, 29 : 119 - 129
[22] Activities of SiO2 and Al2O3 and activity coefficients of FetO and MnO in CaO-SiO2-Al2O3-MgO slags
Ohta, H
Suito, H
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1998, 29 (01): : 119 - 129
[23] DISSOLUTION RATE OF ALUMINA INTO MOLTEN CAO-SIO2-AL2O3-MGO SLAGS
TAIRA, S
NAKASHIMA, K
MORI, K
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1995, 81 (01): : 16 - 21
[24] Phase Equilibrium Studies in the CaO–SiO2–Al2O3–MgO System with MgO/CaO Ratio of 0.2
Jinfa Liao
Gele Qing
Baojun Zhao
Metallurgical and Materials Transactions B, 2023, 54 : 793 - 806
[25] REDOX EQUILIBRIA IN AL2O3-CAO-FEOX-SIO2 AND AL2O3-CAO-FEOX-MGO-SIO2 SLAGS
JAHANSHAHI, S
WRIGHT, S
ISIJ INTERNATIONAL, 1993, 33 (01) : 195 - 203
[26] Phase equilibria in the system 2CaO.SiO2-MgO-5CaO.3Al(2)O(3)
Hansen, WC
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1928, 50 : 2155 - 2160
[27] Phase Equilibria Studies in the CaO-MgO-Al2O3-SiO2 System with Al2O3/SiO2 Weight Ratio of 0.4
Liao, Jinfa
Qing, Gele
Zhao, Baojun
METALS, 2023, 13 (02)
[28] Influence of Al2O3 and MgO on the Viscosity and Stability of CaO-MgO-SiO2-Al2O3 Slags with CaO/SiO2=1.0
Sun, Chang-yu
Liu, Xiao-hong
Li, Jing
Yin, Xi-tao
Song, Sunny
Wang, Qi
ISIJ INTERNATIONAL, 2017, 57 (06) : 978 - 982
[29] The effect of the CaO/SiO2 ratio on the phase equilibria in the ZnO-“Fe2O3”-(PbO + CaO + SiO2) system in air: CaO/SiO2 = 0.1, PbO/(CaO + SiO2) = 6.2, and CaO/SiO2 = 0.6, PbO/(CaO + SiO2) = 4.3
Evgueni Jak
Peter C. Hayes
Metallurgical and Materials Transactions B, 2003, 34 : 369 - 382
[30] The sulphide capacity of CaO-SiO2-Al2O3-MgO(-FeO) smelting reduction slags
Seo, JD
Kim, SH
STEEL RESEARCH, 1999, 70 (06): : 203 - 208

← 1 2 3 4 5 →