Decarburization of Bloated Droplets: An Experimental Study to Understand the Kinetics of Decarburization of Metallic Iron Droplets in FeO Containing CaO-SiO2 Slags

Biswas, Jayasree; Gu, Kezhuan; Coley, Kenneth S.

doi:10.1007/s11663-021-02344-x

Metall Mater Trans B

2021

DOI: 10.1007/s11663-021-02344-x

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Decarburization of Bloated Droplets: An Experimental Study to Understand the Kinetics of Decarburization of Metallic Iron Droplets in FeO Containing CaO-SiO2 Slags

Jayasree Biswas

Kezhuan Gu

Kenneth S. Coley

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2024

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Cited by 5 publications

References 35 publications

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Slag Electrical Conductivity and Its Effect on Mass Transport and Interfacial Reaction Kinetics

Biswas,

Hazaveh,

Coley

2024

steel research int.

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Pyrometallurgical refining typically involves slag–metal reactions which are commonly controlled by transport of reactants in the slag or metal phase. For the simplicity of analysis, mass transport in slag is generally treated on a phenomenological basis as transport of molecules. Although this approach works well for many of the reaction systems over narrow ranges of conditions, it can fail when extrapolated over a wide range of conditions. In many refining processes, transport of oxygen in slag determines the kinetics of major reactions. Transport of oxygen in slag is strongly influenced by the electrical conductivity of slag. Whilst this has been well understood since the 1950s, there have been relatively few attempts to quantify the effects of slag electrical properties on the refining kinetics. Herein, an overview is presented focusing on the electrical properties of slags and their effects on the transport kinetics in steelmaking reactions. An analysis is conducted based on a modified version of the approach taken by Wagner to describe oxygen transport in solid oxides. Data from the literature including work from the authors’ laboratory is discussed in an evaluation of literature oxygen transport in CaO–SiO2–FetO, CaO–SiO2–Al2O3–FetO, and PbO–Fe2O3 slags.

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Slag Electrical Conductivity and Its Effect on Mass Transport and Interfacial Reaction Kinetics

Biswas,

Hazaveh,

Coley

2024

steel research int.

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A Decarburization Model for a Fe–C Droplet Reacting in Oxidizing Slag

Biswas

Coley

2021

Metall Mater Trans B

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Decarburization of Iron Carbon Droplets with Oxidizing Slag: An Experimental Study to Understand the Effect of Ionic and Electronic Conductivity on Decarburization Kinetics

Biswas

Coley

2022

Metall Mater Trans B

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Decarburization of Bloated Droplets: An Experimental Study to Understand the Kinetics of Decarburization of Metallic Iron Droplets in FeO Containing CaO-SiO2 Slags

Cited by 5 publications

References 35 publications

Slag Electrical Conductivity and Its Effect on Mass Transport and Interfacial Reaction Kinetics

Slag Electrical Conductivity and Its Effect on Mass Transport and Interfacial Reaction Kinetics

A Decarburization Model for a Fe–C Droplet Reacting in Oxidizing Slag

Decarburization of Iron Carbon Droplets with Oxidizing Slag: An Experimental Study to Understand the Effect of Ionic and Electronic Conductivity on Decarburization Kinetics

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