Thermodynamic Assessment of Hot Metal and Steel Dephosphorization with MnO-containing BOF Slags
スポンサーリンク
概要
- 論文の詳細を見る
The phosphorus distribution ratios between MnO (8-16 mass%)-containing CaO-SiO<SUB>2</SUB>-Fe<I><SUB>t</SUB></I>O slags and liquid iron were measured at 1873 K in a MgO crucible. The Addition of MnO was found to reduce the phosphorus distribution ratio at a given total Fe content and (mass%CaO)/(mass%SiO<SUB>2</SUB>) ratio. The equilibrium quotient of dephosphorization reaction, (mass%P)/{[mass%P]·(mass%T.Fe)<SUP>5/2</SUP>} the activity coefficient of P<SUB>2</SUB>O<SUB>5</SUB>, and that of Fe<SUB><I>t</I></SUB>O in logarithmic form were formulated as a linear function of slag compositions. Based on these empirical formulas, the dephosphorization in hot metal and steel was thermodynamically assessed and the characteristics of double slag treatments were discussed from the mass balance relation between slag and metal with respect to phosphorus.
- 社団法人 日本鉄鋼協会の論文
- 1995-03-15
著者
-
Suito Hideaki
Institute For Advanced Materials Processing Tohoku University
-
Inoue Ryo
Institute For Advanced Materials Processing Tohoku University
-
Suito Hideaki
Institute For Advanced Materials Processing Tohoku Unibersity
関連論文
- Effect of Oxide Catalyst on Heterogeneous Nucleation in Fe-10mass%Ni Alloys
- Quantitative Analysis of Total and Insoluble Elements and Inclusion Composition in Metal by Laser Ablation ICP-MS Method
- Analysis of Composition and Size Distribution of Inclusions in Fe-10Mass%Ni Alloy Deoxidized by Al and Mg Using Laser Ablation ICP Mass Spectrometry
- Analysis of Size Distribution of Inclusions in Metal by Using Single-particle Optical Sensing Method
- Measurement of Inclusion Size by Laser Ablation ICP Mass Spectrometry
- Thermodynamics on Control of Inclusions Composition in Ultra-clean Steels
- Effect of Sulfur and Oxygen on Engulfment and Pushing of Deoxidation Particles of ZrO_2 and Al_2O_3 during Solidification of Fe-10mass%Ni Alloy
- Dissolution Behavior and Stabilization of Fluorine in Secondary Refining Slags
- Effect of Particle Size Distribution on Austenite Grain Growth in Fe-0.05mass%C Alloy Deoxidized with Mn-Si, Ti, Mg, Zr and Ce
- Influence of Gypsum Addition and Hydrothermal Treatment on Dissolution Behavior of Fluorine in Hot Metal Pretreatment Slags
- Mechanism of Dephosphorization with CaO-SiO_2-Fe_tO Slags Containing Mesoscopic Scale 2CaO・SiO_2 Particles
- Precipitation and Dispersion Control of MnS by Deoxidation Products of ZrO_2, Al_2O_3, MgO and MnO-SiO_2 Particles in Fe-10mass%Ni Alloy
- Behavior of Phosphorous Transfer from CaO-Fe_tO-P_2O_5(-SiO_2) Slag to CaO Particles
- Refinement of Solidification Microstructure and Austenite Grain by Fine Inclusion Particles
- Effect of Nonrandomly Dispersed Particles on Austenite Grain Growth in Fe-10mass%Ni and Fe-0.20mass%C-0.02mass%P Alloys
- Fluorine-containing Mineral Phases in Ironmaking and Steelmaking Slags and Their Solubilities in Aqueous Solution
- Characteristics of Solid Flow and Stress Distribution Including Asymmetric Phenomena in Blast Furnace Analyzed by Discrete Element Method
- Optimization of Physical Parameters of Discrete Element Method for Blast Furnace and Its Application to the Analysis on Solid Motion around Raceway
- Improvement of Reactivity of Carbon Iron Ore Composite with Biomass Char for Blast Furnace
- Reaction Model and Reduction Behavior of Carbon Iron Ore Composite in Blast Furnace
- Production of Mn-Fe Alloy from Slag Generated in Mn-removal Treatment of Molten Cast Iron
- Phosphorous Partition between 2CaO・SiO_2 Particles and CaO-SiO_2-Fe_tO Slags
- Thermodynamics of Zirconium Deoxidation Equilibrium in Liquid Iron by EMF Measurements
- Size Distribution of Deoxidation Products with Ti, Pr and Ti/Pr in Fe-10mass%Ni Alloy
- Effects of Dissolved Oxygen and Size Distribution on Particle Coarsening of Deoxidation Product
- Grain-growth-inhibiting Effects of TiC and ZrC Precipitates in Fe-0.15-0.30mass%C Alloy
- Effects of N, C and Si Contents and MgO on Dispersion of TiN Particles in Fe-1.5%Mn-0.05(0.15)%C Alloy
- Dispersion Behavior of MgO, ZrO_2, Al_2O_3, CaO-Al_2O_3 and MnO-SiO_2 Deoxidation Particles during Solidification of Fe-10mass%Ni Alloy
- Effect of TiN Precipitates on Austenite Grain Size in Fe-1.5%Mn-0.12%Ti-Si(
- Effects of Oxide Particles and Solute Elements on Austenite Grain Growth in Fe-0.05mass%C and Fe-10mass%Ni Alloys
- Characteristics of Particle Size Distribution in Early Stage of Deoxidation
- Characteristics of Particle Size Distribution of Deoxidation Products with Mg, Zr, Al, Ca, Si/Mn and Mg/Al in Fe-10mass%Ni Alloy
- Thermodynamic Analysis of Slag Recycling Using a Slag Regenerator
- Transient Behavior of Burden Descending and Influence of Cohesive Zone Shape on Solid Flow and Stress Distribution in Blast Furnace by Discrete Element Method
- Enhancement of Reactivity of Carbon Iron Ore Composite Using Redox Reaction of Iron Oxide Powder
- Catalytic Effect of Fe, CaO and Molten Oxide on the Gasification Reaction of Coke and Biomass Char
- Influence of Blast Furnace Inner Volume on Solid Flow and Stress Distribution by Three Dimensional Discrete Element Method
- Dispersion of Primary Inclusions of Ce_2O_3 and CeS in Fe-0.20 mass%C-0.02 mass%P Alloy
- Effect of Primary Deoxidation Products orf AL_2O_3, ZrO_2, Ce_2O_3 and MgO on TiN Precipitation in Fe-10mass%Ni Alloy
- Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
- Thermodynamic Consideration on the Absorption Properties of Carbon Dioxide to Basic Oxide
- Simultaneous Determination of the Composition and Size of Oxide Particles in Solid Materials by Laser Ablation-Inductively Coupled Plasma Mass Spectrometry
- Simultaneous Three-dimensional Analysis of Gas-Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics
- Thermodynamic Assessment of Hot Metal and Steel Dephosphorization with MnO-containing BOF Slags
- Thermodynamic Assessment of Manganese Distribution in Hot Metal and Steel
- Hydration of Crystallized Lime in BOF Slags
- Precipitation Behavior of Fe-Al-O Inclusions under Unidirectional Solidification of Fe-30mass%Ni Alloys Saturated with CaO-Al_2O_3 Slags
- Reoxidation of Aluminum in Liquid Iron with CaO-Al_2O_3-Fe_tO (≦3mass%) Slags
- Precipitation Behavior of Al-Ti-O-N Inclusions in Unidirectionally Solidified Fe-30mass%Ni Alloy
- Nitride Capacities in the CaO-base Ternary Slags at 1873K
- Liquid Phase Boundaries at 1873K in the Ternary CaO-Al_2O_3-MO_x(MO_x:MgO, ZrO_2) and CaO-SiO_2-MO_x(MO_x:TiO_2, MgO, Al_2O_3) Systems
- Activities in CaO-MgO_Al_2O_3 Slags and Deoxidation Equilibria of Al, Mg, and Ca
- Influence of Dissolved Cerium and Primary Inclusion Particles of Ce_2O_3 and CeS on Solidification Behavior of Fe-0.20mass%C-0.02mass%P Alloy
- Effect of dissolved Cerium on Austenite Grain Growth in an Fe-0.20mass%C-0.02mass%P Alloy
- Immobilization of Fluorine in Aqueous Solution by Calcium Aluminum Ferrite and the Mixture of Calcium Aluminate and Gypsum
- Immobilization of Hexavalent Chromium in Aqueous Solution through the Formation of 3CaO ・ (Al,Fe)_2O_3・ Ca(OH)_2/ xH_2O Phase, Ettringite and C-S-H Gel
- Thermodynamics of Aluminum and Manganese Deoxidation Equilibria in Fe-Ni and Fe-Cr Alloys
- Stabilization of Hexavalent Chromium in Solution by Mono-chromate, Ettringite and C-S-H Gel
- Effects of Calcium Hydroxide and Dicalcium Ferrite on Immobilization of Fluorine in Solution with Calcium Aluminates
- Calcium and Magnesium Deoxidation in Fe-Ni and Fe-Cr Alloys Equilibrated with CaO-Al_2O_3 and CaO-Al_2O_3-MgO Slags
- CO_2 Absorption and Desorption Abilities of Li_2O-TiO_2 Compounds
- Effects of Calcium Silicates on Immobilization of Fluorine in Solution
- Austenite Grain Size Distribution and Topological Properties in Fe-0.09 to 0.53 mass%C-0.02 mass%P Alloys Containing Primary Inclusions of Ce_2O_3 and CeS
- Electrochemical Measurement of Critical Supersaturation in Fe-O__--M__- (M=Al, Si, and Zr)and Fe-O__--Al__--M__-(M=C, Mn, Cr, Si, and Ti)Melts by Solid Electrolyte Galvanic Cell
- Pinning of Austenite Grain Boundary of Fe-0.09 to 0.53 mass% C-0.02 mass%P Alloys by Primary Inclusions of Ce_2O_3 and CeS
- Leaching Behavior of Fluorine-containing Minerals in Seawater
- Penetration Effect of Injected Gas at Shaft Gas Injection in Blast Furnace Analyzed by Hybrid Model of DEM-CFD
- Behavior of Vanadium and Niobium during Hot Metal Dephosphorization by CaO-SiO_2-Fe_tO Slag
- Influence of Oxide Particles and Residual Elements on Microstructure and Toughness in the Heat-Affected Zone of Low-Carbon Steel Deoxidized with Ti and Zr
- Magnesium Deoxidation and Nitrogen Distribution in Liquid Nickel Equilibrated with CaO-Al2O3-MgO Slags
- Application of Laser Ablation ICP Mass Spectrometry for Analysis of Oxide Particles on Cross Section of Alloys and Steels
- Wettability Model Considering Three-Phase Interfacial Energetics in Particle Method
- Precipitation Behavior of TiN in Fe-10mass%Ni Alloy during Solidification and Isothermal Holding at 1400℃
- Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method
- Extraction of Nonmetallic Inclusion Particles Containing MgO from Steel
- Effects of the Seaweed Bed Construction Using the Mixture of Steelmaking Slag and Dredged Soil on the Growth of Seaweeds
- Evaluation of Coke Mixed Charging Based on Packed Bed Structure and Gas Permeability Changes in Blast Furnace by DEM-CFD Model
- Effect of Multi-phase Oxide Particles on TiN Crystallization and Solidification Structure in Ti-Added Ferritic Stainless Steel
- Experimental Study and Atomic Level Description of Adsorption Process of CO_2 on Doped Alkaline Earth Oxides
- DEM-CFD Model Considering Softening Behavior of Ore Particles in Cohesive Zone and Gas Flow Analysis at Low Coke Rate in Blast Furnace
- Decrease of Sulfide in Enclosed Coastal Sea by Using Steelmaking Slag
- Effect of High Reactivity Coke for Mixed Charge in Ore Layer on Reaction Behavior of Each Particle in Blast Furnace
- Influence of Physical Properties of Melt on Liquid Dripping in Packed Bed Analyzed by MPS Method
- Applicability of Nonaqueous Electrolytes for Electrolytic Extraction of Inclusion Particles Containing Zr, Ti, and Ce
- Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method
- Evaluation of Coke Mixed Charging Based on Packed Bed Structure and Gas Permeability Changes in Blast Furnace by DEM-CFD Model
- Influence of Physical Properties of Melt on Liquid Dripping in Packed Bed Analyzed by MPS Method
- Effect of Multi-phase Oxide Particles on TiN Crystallization and Solidification Structure in Ti-Added Ferritic Stainless Steel