Thermodynamics of the Vitrified Bottom Ash Slag from Municipal Solid Waste Incinerators-Phase Relations of CaO-SiO2-Na2O Oxide System

被引：5

作者：

Zhang, Zhan ^{[1
]}

Li, Guangqiang ^{[1
]}

Yang, Yongxiang ^{[1
,2
]}

Xiao, Yanping ^{[3
]}

机构：

[1] Wuhan Univ Sci & Technol, Key Lab Ferrous Met & Resources Utilizat, Minist Educ, Wuhan 430081, Hubei, Peoples R China

[2] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands

[3] Ironmaking Dept, NL-1979 CA Ijmuiden, Netherlands

来源：

CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING III, PTS 1-3 | 2014年 / 881-883卷

关键词：

Bottom ash; Vitrification; CaO-SiO2-Na2O System; Phase Relation; Phase diagram; EQUILIBRIA; SILICA;

D O I：

10.4028/www.scientific.net/AMR.881-883.574

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Vitrification is considered to be an attractive technology for municipal solid waste incineration. The main components of the vitrified bottom ash slag are SiO2, CaO, Al2O3, Fe2O3, Na2O and MgO, accounting for more than 90% of the total mass. The phase relations and thermodynamic properties of the CaO-Al2O3-SiO2-FeOx-MgO-Na2O oxide system is highly required, and is of great significance for optimization of vitrification processing and sustainable resource utilization of melting slag. Thermodynamic properties of the vitrified bottom ash slag were investigated in the present work. A study on the phase equilibria of CaO-SiO2-Na2O system was carried out with modelling method.

引用

页码：574 / +

页数：2

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