Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO2-Al2O3-CaO-MgO system

Chen Han; Mao Chen; Weidong Zhang; Zhixing Zhao; Tim Evans; Baojun Zhao

doi:10.1007/s11663-016-0744-4

Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO₂-Al₂O₃-CaO-MgO system

Chen Han, Mao Chen, Weidong Zhang, Zhixing Zhao, Tim Evans, Baojun Zhao^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Metallurgical properties of slag are determined to a great extent by its viscosity. High-temperature viscosity measurements are time-consuming and expensive. It is necessary to develop an accurate viscosity model for blast furnace slag in the SiO₂-Al₂O₃-CaO-MgO system using reliable viscosity data. This paper describes a systemic evaluation procedure to determine the viscosity data to be used for model development. 1780 viscosity data from 10 to 65 wt pct SiO₂, 3.5 to 40 wt pct Al₂O₃, 2 to 60 wt pct CaO, and 2 to 38 wt pct MgO in the SiO₂-Al₂O₃-CaO-MgO system have been accepted for model evaluation after critical reviews. The existing 14 viscosity models in SiO₂-Al₂O₃-CaO-MgO system is also reviewed and evaluated. Based on the structure of alumina-silicate slag and evaluated viscosity data, a new viscosity model has been proposed for the system SiO₂-Al₂O₃-CaO-MgO. A new term “probability,” based on the basic oxide and electronegativity, is introduced to calculate the integral activation energy of slag. The model has been evaluated and compared with existing viscosity models in three different composition ranges in SiO₂-Al₂O₃-CaO-MgO system for different applications. The new model reports an outstanding agreement between predictions and experimental data. The industrial implications of the new model have also been discussed in ironmaking and steelmaking processes.

Original language	English
Pages (from-to)	2861-2874
Number of pages	14
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	47
Issue number	5
DOIs	https://doi.org/10.1007/s11663-016-0744-4
Publication status	Published - 1 Oct 2016
Externally published	Yes

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Han, C., Chen, M., Zhang, W., Zhao, Z., Evans, T., & Zhao, B. (2016). Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO₂-Al₂O₃-CaO-MgO system. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 47(5), 2861-2874. https://doi.org/10.1007/s11663-016-0744-4

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title = "Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO2-Al2O3-CaO-MgO system",

abstract = "Metallurgical properties of slag are determined to a great extent by its viscosity. High-temperature viscosity measurements are time-consuming and expensive. It is necessary to develop an accurate viscosity model for blast furnace slag in the SiO2-Al2O3-CaO-MgO system using reliable viscosity data. This paper describes a systemic evaluation procedure to determine the viscosity data to be used for model development. 1780 viscosity data from 10 to 65 wt pct SiO2, 3.5 to 40 wt pct Al2O3, 2 to 60 wt pct CaO, and 2 to 38 wt pct MgO in the SiO2-Al2O3-CaO-MgO system have been accepted for model evaluation after critical reviews. The existing 14 viscosity models in SiO2-Al2O3-CaO-MgO system is also reviewed and evaluated. Based on the structure of alumina-silicate slag and evaluated viscosity data, a new viscosity model has been proposed for the system SiO2-Al2O3-CaO-MgO. A new term “probability,” based on the basic oxide and electronegativity, is introduced to calculate the integral activation energy of slag. The model has been evaluated and compared with existing viscosity models in three different composition ranges in SiO2-Al2O3-CaO-MgO system for different applications. The new model reports an outstanding agreement between predictions and experimental data. The industrial implications of the new model have also been discussed in ironmaking and steelmaking processes.",

author = "Chen Han and Mao Chen and Weidong Zhang and Zhixing Zhao and Tim Evans and Baojun Zhao",

year = "2016",

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doi = "10.1007/s11663-016-0744-4",

language = "English",

volume = "47",

pages = "2861--2874",

journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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Han, C, Chen, M, Zhang, W, Zhao, Z, Evans, T & Zhao, B 2016, 'Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO₂-Al₂O₃-CaO-MgO system', Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, vol. 47, no. 5, pp. 2861-2874. https://doi.org/10.1007/s11663-016-0744-4

Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO₂-Al₂O₃-CaO-MgO system. / Han, Chen; Chen, Mao; Zhang, Weidong et al.
In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 47, No. 5, 01.10.2016, p. 2861-2874.

Research output: Contribution to journal › Article › peer-review

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T1 - Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO2-Al2O3-CaO-MgO system

AU - Han, Chen

AU - Chen, Mao

AU - Zhang, Weidong

AU - Zhao, Zhixing

AU - Evans, Tim

AU - Zhao, Baojun

PY - 2016/10/1

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N2 - Metallurgical properties of slag are determined to a great extent by its viscosity. High-temperature viscosity measurements are time-consuming and expensive. It is necessary to develop an accurate viscosity model for blast furnace slag in the SiO2-Al2O3-CaO-MgO system using reliable viscosity data. This paper describes a systemic evaluation procedure to determine the viscosity data to be used for model development. 1780 viscosity data from 10 to 65 wt pct SiO2, 3.5 to 40 wt pct Al2O3, 2 to 60 wt pct CaO, and 2 to 38 wt pct MgO in the SiO2-Al2O3-CaO-MgO system have been accepted for model evaluation after critical reviews. The existing 14 viscosity models in SiO2-Al2O3-CaO-MgO system is also reviewed and evaluated. Based on the structure of alumina-silicate slag and evaluated viscosity data, a new viscosity model has been proposed for the system SiO2-Al2O3-CaO-MgO. A new term “probability,” based on the basic oxide and electronegativity, is introduced to calculate the integral activation energy of slag. The model has been evaluated and compared with existing viscosity models in three different composition ranges in SiO2-Al2O3-CaO-MgO system for different applications. The new model reports an outstanding agreement between predictions and experimental data. The industrial implications of the new model have also been discussed in ironmaking and steelmaking processes.

AB - Metallurgical properties of slag are determined to a great extent by its viscosity. High-temperature viscosity measurements are time-consuming and expensive. It is necessary to develop an accurate viscosity model for blast furnace slag in the SiO2-Al2O3-CaO-MgO system using reliable viscosity data. This paper describes a systemic evaluation procedure to determine the viscosity data to be used for model development. 1780 viscosity data from 10 to 65 wt pct SiO2, 3.5 to 40 wt pct Al2O3, 2 to 60 wt pct CaO, and 2 to 38 wt pct MgO in the SiO2-Al2O3-CaO-MgO system have been accepted for model evaluation after critical reviews. The existing 14 viscosity models in SiO2-Al2O3-CaO-MgO system is also reviewed and evaluated. Based on the structure of alumina-silicate slag and evaluated viscosity data, a new viscosity model has been proposed for the system SiO2-Al2O3-CaO-MgO. A new term “probability,” based on the basic oxide and electronegativity, is introduced to calculate the integral activation energy of slag. The model has been evaluated and compared with existing viscosity models in three different composition ranges in SiO2-Al2O3-CaO-MgO system for different applications. The new model reports an outstanding agreement between predictions and experimental data. The industrial implications of the new model have also been discussed in ironmaking and steelmaking processes.

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U2 - 10.1007/s11663-016-0744-4

DO - 10.1007/s11663-016-0744-4

M3 - Article

AN - SCOPUS:84978127940

SN - 1073-5615

VL - 47

SP - 2861

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JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

IS - 5

ER -

Evaluation of existing viscosity data and models and developments of new viscosity model for fully liquid slag in the SiO₂-Al₂O₃-CaO-MgO system

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