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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Effect of Slag Conductivity on Decarburisation Reaction Kinetics
Author(s) Jayasree Biswas, Kenneth Coley
On-Site Speaker (Planned) Jayasree Biswas
Abstract Scope In basic oxygen steelmaking, metal droplet decarburization plays an important role in overall refining efficiency due to the bloating phenomena. In this work, a fundamental study of decarburization reaction kinetics for liquid metal droplets in oxidizing slag have been conducted. This study proposes a kinetic model which includes the effect of slag conductivity on decarburization reaction kinetics. It is proposed that during the decarburization process a charge build-up at the slag metal interface introduces an electric field which opposes the movement of oxygen ions towards slag-metal interface. This effect is believed to be the cause of the sudden shutdown of the decarburization process for metal droplets observed for low conductivity slags, in contrast to the case of high conductivity stage where decarburization was observed to continue to equilibrium.
Proceedings Inclusion? Planned:


Carbothermal Reduction of Brazilian Linz Donawitz-LD Steel Sludges
Computational Fluid Dynamics Modeling of Damped Oscillations of Molten Metal Droplets
Contactless Inductive Flow Tomography for Control of Liquid Metal Flow with Electromagnetic Actuators
Containerless Materials Processing for Materials Science on Earth and in Space
Cylindrical and Planar Magnetron Sputtering for Microstructural Control
Effect of Dissolution of Titanium Ions on Ti Alloys Electrodeposition from EMIC-AlCl3 Ionic Liquid at Low Temperature
Effect of Nitrogen on Weldability and the Microstructure in Laser Beam Welding of Duplex Stainless Steel
Effect of Slag Conductivity on Decarburisation Reaction Kinetics
Experimental Characterization of Liquid Metal Bubble-driven Flows Modeling the Situation in a Steel Ladle
Influence of Slab Transportation and Handling Practice on Crack Sensitivity of Micro-alloyed Steels
Liquid-liquid Extraction Thermodynamic Parameter Estimator (LLEPE) for Multicomponent Separation Systems
Low Temperature Aluminothermic Reduction of Metal Oxides
Modelling of Metal Loss in Ferromanganese Furnace Tapping Operations
Numerical Simulation of the Influence of Particle Physical Properties on Flow Field during the Aeration Leaching Process
Stress Development Simulation in Continuously Cast Steel Slabs during Cooling Process
The Role of Copper in Combustion Processes
Thermodynamic Examination of Quaternary Compounds in the Ag–Fe–(Ge, Sn)–Se Systems by the Solid-state EMF Method
Thermodynamic Modeling of Iron-copper-sulfuric Acid Solutions during Solvent Extraction and Electrowinning for Copper Production
X-ray and Neutron Radiographic Experiments on Particle-laden Molten Metal Flows

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