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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium 9th International Symposium on High Temperature Metallurgical Processing
Presentation Title D-10: Kinetics Study on Limestone Decomposition in Early Converter Slag
Author(s) Nan Wang, Haohua Deng, Min Chen, Ming Chen, Ying Wang, Cuihuan Huang
On-Site Speaker (Planned) Cuihuan Huang
Abstract Scope Compared to the conventional lime slagmaking mode, adding limestone directly into converter is considered to be favorable to energy conservation and emission reduction by transferring the decomposition reaction of limestone from the shaft or rotary kiln to the converter. In this paper, the kinetics of limestone decomposing in early converter slag was studied at 1300-1400℃, and the effects of slag temperature and stirring speed introduced to the slag bath were examined. The kinetic results based on shrinking core model analysis showed that the limestone decomposition was a mixed rate control of chemical reaction and heat conduction through the lime layer, which could be promoted at higher slag temperature. The chemical reaction rate constant and effective thermal conductivity were also determined. In addition, smaller limestone particle less than 15 mm and more heat supply to the converter bath are recommended to accelerate the limestone decomposition in early converter slag.
Proceedings Inclusion? Planned:


A Statistical Analysis of Process Abnormalities in Slab Casting
An Innovative Oxygen-enriched Flash Smelting Technology for Lead Smelting and its Industrial Application
Assessment of Gas-Slag-Metal Interaction during a Converter Steelmaking Process
Carbothermic Direct Reduction of Chromite Using a Segregation Catalyst for the Production of Ferrochrome
CFD Modeling of Flow and Chemical Reactions in a Submerged Lance Copper Smelting Furnace
Characteristics and Control Technology of Fine Particulate Matter (PM) in Iron Ore Sintering
D-10: Kinetics Study on Limestone Decomposition in Early Converter Slag
D-11: Mathematical Modeling and Analysis of Converter Slagging and Steelmaking Process by Replacing Part of Lime With Limestone
D-12: Research of Digital Platform and Process Guidance Model in EAF Steelmaking Process
D-13: Research on Factors Affecting and Prediction Model of Silicon Content in Hot Metal of Corex
D-14: Research on the Long Life Blowpipe Liner of BF Air Supply Apparatus
D-15: Selection of Viscosity Model of Chromium-Containing Converter Slag and Investigation of the Effect of Compositions on Viscosity
D-17: Study on Grain Size and Porosity of the Produced Lime from Limestone in Early Converter Slag
D-18: Study on the Volatilization of Sb2S3 in Vacuum
D-19: The Effects of ZrO2, Y2O3 and Sc2O3 on the Properties of Mould Fluxes for High Manganese High Aluminum Steels
D-1: Atomistic Insight into Structural Role of Boron in High Temperature CaO-SiO2 Slag System
D-20: Thermodynamic Calculation on Reactivity between Slag and High Mn-high Al Steel
D-22: Viscosity of Mould Flux under Electromagnetic Field
D-23: Alumino-thermic Reduction of SrO and SrCO3
D-25: Analysis of Operational Parameters Affecting the Degree of Metalization of DRI in a Reduction Shaft of the COREX Process and Improvement Measures
D-26: Dechlorination of Zinc Oxide Dust by Microwave Rosating with RSM Optimization
D-27: Effect of TiO2 on the Viscous Behavior of High Alumina Blast Furnace Slag
D-28: Fundamental Research on the Iron Nugget Process from Carbon Composite Pellet
D-30: Influence of Coke Quality on Main Technical Indexes of Blast Furnace
D-31: Kinetic Analysis of Blast Furnace Dust Recycling with Flash Reduction Process at High Temperature
D-32: Novel Utilization Technology of Low Grade Nb-bearing Iron Concentrate from Bayan Obo Ore in China
D-33: Preparation and Characterization of Iron-coke Briquette
D-34: Preparation of Direct Reduced Iron Using Crumb Rubber Powder
D-35: Preparation of Oxidized Pellets with Chrome Ore
D-36: Research and Application of Sintering Surface Steam Spraying Technology for Energy Saving and Quality Improvement
D-37: Study on Bonding Mechanism of Sinter Grate Bar
D-38: Optimizing Iron Ore Matching for Sintering Based on High Temperature Characteristic Numbers
D-39: Mineral Composition and Microstructure Changes of Iron Ore Sinter during the Gas-Solid Reduction
D-3: Effect of Chemical Components of Mould Flux on Dissolution Rate of Al2O3 into Molten Flux for High Manganese High Aluminum Steel
D-40: Roasting Kinetics of Molybdenite Concentrates
D-41: Study on Direct Reduction of Low-grade Iron Ore-coal Mini-pellets in Coal-based Rotary Kiln
D-42: Study on Influences of Different Ti-bearing Materials on MgO-bearing Pellets Metallurgical Properties
D-43: Supergravity Separation of Pb and Sn from Waste Printed Circuit Boards
D-44: The Effect of Temperature and Additive on Transport and Transformation of P of High-phosphorus Iron Ore during Carbothermic Reduction
D-45: Thermodynamic Calculations on Direct Reduction of Chromium-bearing Vanadium Titanium Magnetite
D-4: Effect of Temperature on Oxidation Behavior of Cr-Mo-V Steel with Different Cr Contents for High-speed Train Brake Discs
D-6: Evolution of Al-Ti-Mg-O Inclusions during Refining and Casting Process of Interstitial Free Steel
D-7: Experimental Study on Carburization of Higher Vanadium-bearing Hot Metal
D-9: Influence On The Crystallization Phase Of Mold Flux By Magnetic Fields
Degradation Mechanisms of Refractories in a Bottom Blown Copper Smelting Furnace
Development of Continuous Blast Furnace Slag Solidification Process for Coarse Aggregates
Dissolution Rate of Carbon in Molten Iron-manganese Alloys
Effect of Calculation Method of CaO Addition on Liquid Phase Fluidity
Effect of Carbon Coating on Magnetite Reduction
Effect of Cooling Rate on the Acidolysis of Titania Slag
Effect of Density Difference on Particle Segregation Behaviors at Bell-less Top Blast Furnace with Parallel-type Hopper
Effect of Modified Humic Acid (MHA) Binder on Roasting Behavior Mongolian Tumurtei Iron Concentrate Briquettes
Enhancement of Yield by Improvement of Iron Ore Sinter Strength of Weak Layer in Sinter Bed
Exergy and its Efficiency Estimations for Sponge Iron Production in a Rotary Hearth Furnace
Experimental Study on Oxidative Desulfurization and Selective Reduction of Molten Copper Slag
Fabrication Methods and Applications of Microstructured Carbon Based Liquid Copper Alloys
Growth of Iridium and Iridium Alloy Fibers from the Melt by Alloy-micro-pulling-down Method
High Temperature Dielectric Property Measurement System
High throughput Experimental Technologies for Novel Amorphous Metallic Materials Research
In-situ Observation of the Precipitation Behavior of Dy2O3 Containing Slag System
Irreversibilities in Copper Matte Smelting and Settling
Metallization and Carburization Kinetics in DR Shaft Furnaces. The Metcarb Model
Modeling of Reactive Melt Infiltration Used in the Fabrication of Si-Co/C Composites
Neural Prediction Model for Extraction of Germanium from Zinc Oxide Dust by Microwave Alkaline Roasting-water Leaching
Numerical and Experimental Study of Carbothermal Reduction of Silica in a Laboratory Thermal Plasma Reactor
Numerical Simulation of Ultrasound-Induced Cavitation Bubbling in a Calcium Ferrite Melt
On the Role of Nb on the Texture and Microstructure of a Novel As-rolled Medium Carbon Wear Resistant Slurry Pipeline Steel
Optimization Method for Iron Ore Blending Based on the Sintering Basic Characteristics of Blended Ore
Optimization of Exothermic Riser Sleeve Design Parameters
Physiochemical Properties of High Alumina Blast Furnace Slag
Pilot Scale Production of Ferrochrome with Si Wafer Kerf Loss Reductants Using 280kW Direct Current Arc Furnace
Preparation for High Activity Degree Lime and Effect on Desulfurization of Hot Metal Pretreatment
Preparation of Manganese Ferrite by Low-temperature Solid-state Synthesis under CO-CO2 Atmosphere
Preparation of Titanium Foams through Direct Electrolysis of the Sintered CaO-TiO2 in Molten Salt CaCl2
Production of Lithium-Ion Cathode Material for Automotive Batteries Using Melting Casting Process
Production of Titanium from Waste Slag
Purification of Molten Zinc Chloride-Alkali Chloride by Cementation Reaction
Pyrometallurgical Processing of Secondary Lead Material: An Industry Overlook
Reaction Routes of CaO-Fe2O3-TiO2 and Calcium Ferrite-TiO2 System in Continuous Heating Process
Recovery of Aluminium and its Compounds with Hydro and Pyrometalurgical Methods from Non-metallic Residue
Recovery of Fe-Cu Alloys from Copper Slag
Recovery of Zn and Mn from Spent Alkaline Batteries
Recycling SiO2 and Al2O3 from the Laterite Nickel Slag in Molten Sodium Hydroxides
Reduction Behavior of Garnierite Using Methane by Roasting-Magnetic Separation Method
Refractory Wear in a High Carbon Ferromanganese Smelting Furnace
Removal of Sulfur from Copper Dross Generated by Refining Lead
Role of Burden Distribution in Blast Furnace under Reduced Coke Consumption
Selective Recovery of P and Mn from Steelmaking Slag by Carbothermic Reduction
Simplified Process for Making Anode Copper
Simulation of Velocity Field of Molten Steel in Electric Arc Furnace Steelmaking
Sintering Study of WC-Co Hardmetals Obtained from Nanocrystalline Powders
Sintering Surface Spraying Steam to Reduce NOx and Dioxin Emissions in Shougang
Solid Oxide Membrane-based Green Processing and Modeling of Silicon Production
Structural Analysis of Ge-containing Ferrous Calcium Silicate Magnesia Slag for Applications of Black Copper Smelting
Study on Direct Reduction Melting Separation-leaching Process of Disposal Rare Earth Composite Iron Ore
Sulfation Roasting of Nickel Sulfide Concentrate in the Presence of Sodium Sulfate
Supersolidus Liquid Phase Sintering of H13 Tool Steel Fabricated via Binder Jet Additive Manufacturing
Synthesis of Nanocrystalline Carbide Ceramics via Reduction of Anion-loaded Activated Carbon Precursors
Techno-economic Analysis of Energy Recovery from Plastic Waste
The Dissolution Behavior of MgO into Molten High Titanium Slag
The Effect of Austenitizing Temperature on Hardenability, Precipitation and Mechanical Properties of Boron Bearing Cr-Mo Alloy Steel
The Use of Zirconia-based Solid Electrolytes Oxygen Sensor in High Titanium Slag
Thermodynamic Analysis of Smelting of Spent Catalysts for Recovery of Platinum Group Metals
Thermodynamic Calculations on Electric Furnace Smelting Separation of Chromium-bearing Vanadium Titanium Magnetite
Thermodynamic Modelling of Magnesium-Oxide, Calcium-Oxide and Strontium-Oxide Reduction Systems via Pidgeon Process
Viscosity of CaO-SiO2-based Mold Flux with CeO2 for Continuous Casting of RE Alloyed Heavy Rail Steels

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