Paper Title:
Thermodynamics of Slag Formation in Multi-Component Oxide Systems in Thermal Processing of Incineration Bottom Ash - Equilibrium Phase Relation in CaO-SiO2-FeOx-MgO System
  Abstract

Vitrification is considered as an attractive procedure for municipal solid waste incineration ash, which can realize the volume reduction and innocent treatment of incineration ash, as well as reuse of bottom ash. The main oxide components of molten ash slag are CaO, Al2O3, SiO2, Fe2O3, MgO, and Na2O, 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. A study on the equilibria phase relations of CaO-SiO2-MgO-FeOx system was done by applying CALPHAD based on FactSage in this paper. The modeling parameters for the thermodynamic properties of liquid phase in CaO-SiO2-MgO-FeOx system were established and the equilibrium phase relations of MgO-SiO2-FeOx and CaO-SiO2-FeOx-MgO systems were calculated for different temperatures and oxygen partial pressures.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
2175-2178
DOI
10.4028/www.scientific.net/AMR.194-196.2175
Citation
N. Wang, Z. S. Zou, Z. Zhang, Y. P. Xiao, Y. X. Yang, "Thermodynamics of Slag Formation in Multi-Component Oxide Systems in Thermal Processing of Incineration Bottom Ash - Equilibrium Phase Relation in CaO-SiO2-FeOx-MgO System", Advanced Materials Research, Vols. 194-196, pp. 2175-2178, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: K. Ghanbari Ahari, D. Thompson, B.B. Argent, J.H. Sharp
2131
Authors: Hai Yan Tang, Jing She Li, Han Jie Guo
Composites
Abstract:The sulfide capacity (CS) and equilibrium distribution ratio of sulphur (LS) are important indicators to...
147
Authors: Jian Chao Li, Yan Chang Kong, Qing Lü, Fu Min Li
Chapter 1: Metallurgical Physical Chemistry
Abstract:The FetO activity calculating model of alkali-containing BF slag was built according to the coexistence theory of slag structure at 1773K....
28
Authors: Li Xia Liu, Gang Wang, Shi Jun Wang, Yun Chi Dong, Yi Fan Chai
Chapter 8: Energy Materials, Engineering Materials and Processing Technologies
Abstract:CaF2 is used in large quantity during refining of steel, which is harmful to environment to be found. There is more and more study...
1558