Experimental Phase Equilibria Studies in the FeO-Fe2O3-CaO-SiO2 System and the Subsystems CaO-SiO2, FeO-Fe2O3-SiO2 in Air

被引：17

作者：

Cheng, Siyu ^{[1
]}

Shevchenko, Maksym ^{[1
]}

Hayes, Peter C. ^{[1
]}

Jak, Evgueni ^{[1
]}

机构：

[1] Univ Queensland, Pyromet Innovat Ctr, Sch Chem Engn, PYROSEARCH, Brisbane, Qld 4072, Australia

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2021年 / 52卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

SI-O SYSTEM; EXPERIMENTAL LIQUIDUS; FE-O; THERMODYNAMIC OPTIMIZATION; SILICATE; CAO; IMMISCIBILITY; STABILITY; FE2O3-CAO-SIO2; CALCIUM;

D O I：

10.1007/s11663-021-02159-w

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New experimental measurements have been made to determine liquidus isotherms, univariant and invariant equilibria in the FeO-Fe2O3-CaO-SiO2, CaO-SiO2 and FeO-Fe2O3-SiO2 systems in air at temperatures between 1190 degrees C and 1730 degrees C. The study was undertaken using equilibration/quenching and microanalysis techniques, enabling the compositions of the liquid and solid phases in equilibrium at temperature to be accurately measured. The data have been used to define liquidus in the primary phase fields of hematite (Fe2O3), spinel [(Fe,Ca)O center dot Fe2O3], lime (CaO), tridymite or cristobalite (SiO2), dicalcium ferrite (2CaO center dot Fe2O3, C2F), pseudo-wollastonite (CaO center dot SiO2, CS), rankinite (3CaO center dot 2SiO(2), C3S2), dicalcium silicate (2CaO center dot SiO2, C2S), tricalcium silicate (3CaO center dot SiO2, C3S) and the two liquids miscibility gap. These data obtained in the present study provide a more complete and more accurate description of the multi-component Fe-Ca-Si-O-Al-Mg-Cu-S system directly relevant to applications in the cement, the ferrous and non-ferrous metallurgical industries.

引用

页码：1891 / 1914

页数：24

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