ProgramMaster Logo
Conference Tools for 2021 TMS Annual Meeting & Exhibition
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Carbothermal Reduction of Brazilian Linz Donawitz-LD Steel Sludges
Author(s) Mery Cecilia Gomez-Marroquin, Jose Carlos D´Abreu, Enrique R. Dionisio-Calderón, Nilton Cárdenas-Falcón, Abraham J. Terrones - Ramirez, Jhony F. Huarcaya-Nina, Kim J. Phatti - Satto, Fernando Huaman-Perez
On-Site Speaker (Planned) Mery Cecilia Gomez-Marroquin
Abstract Scope Carbothermic reduction was conducted using coarse (Sample A) and fine (Sample B) Brazilian Linz Donawitz-LD steel sludges and a sample of Peruvian anthracitic metallurgical coke (AMC) at 82.5% of fixed carbon. Specimens of 1g of sample A and sample B preliminarily mixed with AMC at Fe/C:1/2 were weighted. Sample A / AMC and Sample B / AMC, reduction time and reduction temperature were identified as factors or independent variables. Conversions (α) or % Reduction were selected as dependent variables. The values of weight ratios for Sample A / AMC and Sample B / AMC (3/7 and 7/3, respectively), reduction temperatures of 600 and 900°C and reduction times lapses of 30 and 60 minutes, corresponding to their minimum as well as their maximum level of fluctuation respectively, were carry out via two design of experiments based in the factorial method 23; one for each sample (A and B); using a Brazilian statistics software called COLMEIA - Snedecor algorithm F in order to evaluate the effects simple, double and multiple of factors over the conversions (α) or % Reduction. Carbothermic reduction tests were performed at the optimal weight ratio (sample A /AMC: 3/7 and sample B /AMC: 3/7), reduction temperatures: 600, 700, 800 and 900° C and reduction times: 20, 30, 40, 50 and 60 minutes in order to estimate k- specific reaction rate constant, Ea-apparent activation energy and the A-Arrhenius pre-exponential frequency factor. The kinetic models that better fitted to the conversions (α) of both samples (A and B) were: Boundary Chemical Reaction Model for spherical symmetry (BCRM-ss): 1-(1-α)^(1⁄3)=kt and the model of simple exponential continuous reaction (MSECR): -ln(1-α)=kt. The kinetic parameters obtained were: (1) Sample A: Ea = 7. 45 - 8.08 kJ / mol and A = 0.009 - 0.032 Hz for a linear correlation between 0.8241 and 0.8276 and (2) Sample B: Ea = 19.36 - 21.94 kJ / mol and A = 0.05 - 0.21 Hz for a linear correlation between 0.9758 and 0.9777. Keywords: Carbothermic reduction, Linz Donawitz-LD, LD converter, BOF converter, Steel sludges, Converter process
Proceedings Inclusion? Planned:


A hybrid model for predicting the end-point phosphorus content of electric arc furnace
A practical way to prevent porosity defects in steel casting component
Addition of Ilmenite Ore to Hematite Ore for Phase Development of Sinter
An Experimental study on the Melting Temperature of Mould Flux under Electromagnetic Field
Carbothermal Reduction of Brazilian Linz Donawitz-LD Steel Sludges
Computational Fluid Dynamics Modeling of Damped Oscillations of Molten Metal Droplets
Considerations of Removing Arsenic from Molten Steel by Adding Rare Earth Elements
Contactless generation of cavitation for particle dispersion in liquid iron and steel
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 Inclusion Control on Corrosion Properties of Polar steel
Effect of laser power on the microstructure and properties of 3D printed stainless steel
Effect of Nitrogen on Weldability and the Microstructure in Laser Beam Welding of Duplex Stainless Steel
Effect of Slag Conductivity on Decarburisation Reaction Kinetics
Effect of turbulence inhibitor on molten steel flow in Tundish
Effect of ZrO2 filters on inclusions in steel
Experimental characterization of liquid metal bubble-driven flows modeling the situation in a steel ladle
Experimental measurements and optimized Iida model estimations of viscosity in Vanadium Slag with different FeO content
Experimental study of bubbly flows injected through top submerged lance (TSL) into a liquid metal
FactSage-Based Mass and Energy Balance Calculations Validated Against Plant Data for the Production of Silicomanganese
Flotation of molybdenite in the presence of sheared polyacrylamide flocculants
Influence of basicity (CaO/SiO2) on viscosity and phase structure of Chromium-containing High-titanium Blast Furnace Slag
Influence of Cr2O3 Content on Phase of Chromium-containing High-titanium Blast Furnace Slag
Influence of Natural Convection Caused by Slag Density Difference on Temperature and Solidification of Molten Slag
Influence of rotation speed and temperature on dissolution rate of Cr2O3 in Ti-bearing blast furnace slag
Influence of slab transportation and handling practice on crack sensitivity of micro-alloyed steels
Investigating the Existence, Location, and Variation in Geometry of Ductility Troughs in Steel
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
Numerical Simulations of Microscale Metallic Particle Impact using Eulerian Approach
Optimal Design of the Submerged Entry Nozzle Structure and Modification of Technology for ASP Continuous Casting
Research on the Reduction Distribution Strategy of the Multi-Mode Continuous Casting & Rolling Process Control
Research on the Rolling Load Distribution Model Technology of the Multi-Mode Continuous Casting & Rolling Process Control
Stress development simulation in continuously cast steel slabs during cooling process
Study on Evolution of Inclusions in Tinplate Production during RH Refining - Continuous Casting Process
Study on the Effect of Long Shroud Structure on Molten Steel Flow in Single Strand Tundish by Numerical Simulation
The CuCl2-CuSO4-ZnSO4 system at elevated temperatures
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
Thermomechanical Analysis and Experimental Validation of ECAP for Aluminum Sheet Metal
X-ray and neutron radiographic experiments on particle-laden molten metal flows

Questions about ProgramMaster? Contact