Distribution of P_2O_5 between Solid Dicalcium Silicate and Liquid Phases in CaO-SiO_2-Fe_2O_3 System

スポンサーリンク

概要

• 論文の詳細を見る

• In most cases, the slag used in hot metal dephosphorization is saturated with dicalcium silicate (C2S) and contains two phases—solid C2S and liquid. It is known that C2S and tricalcium phosphate (C3P) form a solid solution over a wide range of composition. The distribution ratio of P2O5 between the solid solution and the liquid slag phase has been reported to be very high. In order to determine the maximum possible concentration of P2O5 in the solid solution, the distribution ratio of P2O5 in slag containing a high concentration of P2O5 was measured in this study, and the influence of MgO and MnO on the distribution ratio was also investigated. CaO–SiO2–Fe2O3 slag containing up to 18% P2O5 was melted at 1873 K and then cooled to 1673 K at a rate of 10 K/min. During cooling, the solid solution of C2S and C3P precipitated from the liquid slag. A linear relationship, which was independent of the lime/silica ratio and P2O5 content, was found to exist between the distribution ratio of P2O5 and the T·Fe content. On the contrary, the concentration of P2O5 in the solid solution was strongly influenced by the lime/silica ratio and P2O5 content. If the P2O5 content was high enough and the T·Fe content was controlled to show the high distribution ratio, the concentration of C3P in the solid solution can be increased to 100%. No significant change was observed in the distribution ratio upon the addition of MgO and MnO.

• 社団法人 日本鉄鋼協会の論文
• 2009-04-15

著者

• SHIBATA Hiroyuki

  Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University

• Kitamura Shin-ya

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Shibata Hiroyuki

  Institute For Chemical Research Kyoto University

• Kitamura Shin-ya

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• Kitamura Shin-ya

  Institute Of Multi-disciplinary Research On Advanced Materials Tohoku University

• SHIMAUCHI Ken-ichi

  Graduate School of Engineering, Tohoku University

• Shimauchi Ken-ichi

  Graduate School Of Engineering Tohoku University

• Shibata Hiroyuki

  Institute For Advanced Materials Processing Tohoku University

関連論文

• High Thermal Conductivity of Gallium Nitride (GaN) Crystals Grown by HVPE Process
• Thermal and Optical Properties of Yb^-Doped Y_2O_3 Single Crystal Grown by the Micro-Pulling-Down Method
• Evaluation of Bubble Eye Area to Improve Gas/Liquid Reaction Rates at Bath Surfaces
• Electrical Resistivity Measurements of Pd_Cu_Ni_P_ Alloy in Supercooled Liquid and Liquid State
• Thermal Diffusivities and Conductivities of Molten Germanium and Silicon
• Measurement of Thermal Diffusivity of Steels at Elevated Temperature by a Laser Flash Method
• Applicability of Platinum and Molybdenum Coatings for Measuring Thermal Diffusivity of Transparent Glass Specimens by the Laser Flash Method at High Temperatures
• Natural Antioxidant, Chlorogenic Acid, Protects Against DNA Breakage Caused by Monochloramine
• In-situ Observation of Intragranular Ferrite Nucleation at Oxide Particles
• Some Aspects on Grain Refining Additions with Focus on Clogging during Casting
• Molecular Properties and Enhancement of Thermostability by Random Mutagenesis of Glutamate Dehydrogenase from Bacillus subtilis
• 2-III-22 Intermolecular dimmer structure of Euglena ascorbate peroxidase
• Functional Characterization of D-Galacturonic Acid Reductase, a Key Enzyme of the Ascorbate Biosynthesis Pathway, from Euglena gracilis
• Characterization of Protein Phosphatase 2A Acting on Phosphorylated Plasma Membrane Aquaporin of Tulip Petals
• Phosphorylation of Plasma Membrane Aquaporin Regulates Temperature-Dependent Opening of Tulip Petals
• Generation of Reactive Oxygen Species from Hinokitiol under Near-UV Irradiation(Analytical Chemistry)
• Molecular Properties and Activity of Amino-Terminal Truncated Forms of Lipase Activator Protein
• Calcium Ion-Dependent Reactivation of a Pseudomonas Lipase by Its Specific Modulating Protein, LipB^1
• Analysis on Material and Energy Balances of Ironmaking Systems on Blast Furnace Operations with Metallic Charging, Top Gas Recycling and Natural Gas Injection
• Analysis of Dephosphorization Reaction Using a Simulation Model of Hot Metal Dephosphorization by Multiphase Slag
• Modeling the Behavior of Al_2O_3 Inclusions during the Dendritic Solidification of Steel
• Effect of Bottom Bubbling Conditions on Surface Reaction Rate in Oxygen-Water System
• Behavior of Cobalt in Iron- and Steel-making Processes
• Distribution of P_2O_5 between Solid Dicalcium Silicate and Liquid Phases in CaO-SiO_2-Fe_2O_3 System
• Prediction of Raceway Shape and Size
• Mass Transfer of P_2O_5 between Liquid Slag and Solid Solution of 2CaO・SiO_2 and 3CaO・P_2O_5
• Origin of Heat Transfer Anomaly and Solidifying Shell Deformation of Peritectic Steels in Continuous Casting
• Recovery of Hot Ductility by Improving Thermal Pattern of Continuously Cast Low Carbon and Ultra Low Carbon Steel Slabs for Hot Direct Rolling
• Distribution of P_2O_5 between Solid Solution of 2CaO・SiO_2-3CaO・P_2O_5 and Liquid Phase
• Precipitation Behavior of Copper, Tin and Manganese Sulfide at High Temperature in Fe-10%Cu-0.5%Sn Alloys
• Cysteine Uptake for Accumulation of Glutathione by the Cyanobacterium Synechocystis strain PCC 6803
• Repraesentins D, E and F, New Plant Growth Promoters from Lactarius repraesentaneus
• Anti-inflammatory Cyathane Diterpenoids from Sarcodon scabrosus
• New Plant Growth Promoters, Repraesentins A, B and C, from Lactarius repraesentaneus(Organic Chemistry)
• Hydroxyl Radical Generation Depending on O_2 or H_2O by a Photocatalyzed Reaction in an Aqueous Suspension of Titanium Dioxide
• Determination of Free Energy of δ-Ferrite/γ-Austenite Interphase Boundary of Low Carbon Steels by In-situ Observation
• In-situ Observation of Engulfment and Pushing of Nonmetallic Inclusions in Steel Melt by Advancing Melt/Solid Interface
• Characteristics of Agglomeration of Various Inclusion Particles on Molten Steel Surface
• "In-situ"Observation of Collision, Agglomeration and Cluster Formation of Alumina Inclusion Particles on Steel Melts
• Characterization of Four Plasma Membrane Aquaporins in Tulip Petals : A Putative Homolog is Regulated by Phosphorylation
• Cloning, Biochemical and Phylogenetic Characterizations of γ-Glutamylcysteine Synthetase from Anabaena sp. PCC 7120
• Cloning,Structural Analysis and Expression of the Gene Encoding Aspartate Aminotransferase from the Thermophilic Cyanobacterium Phormidium lapideum
• Characterization of Aspartate Aminotransferase from the Cyanobacterium Phormidium lapideum(Biochemistry & Molecular Biology)
• Oxidation and Reduction of Nitrite Ion in the TiO_2 Photo-induced Catalytic Reaction
• Effect of Intracellular Glutathione on Heat-induced Cell Death in the Cyanobacterium, Synechocystis PCC 6803
• Heat Transfer across Mold Flux Film in Mold during Initial Solidification in Continuous Casting of Steel
• Thermal Resistance at the Interface between Mold Flux Film and Mold for Continuous Casting of Steels
• Radiative Heat Transfer through Mold Flux Film during Initial Solidification in Continuous Casting of Steel
• Heat Transfer from Shell across Flux Film to Continuous Casting Mold
• Measurement of Optical Properties of Continuous Casting Mold Fluxes at Elevated Temperatures
• Thermal Resistance between Solidifying Steel Shell and Continuous Casting Mold with Intervening Flux Film
• Anomaly in Melting Behavior and Mechanical Properties of Carbon Steels Near Their Solidus Temperature
• "In-situ"Real Time Observation of Planar to Cellular and Cellular to Dendritic Transition of Crystals Growing in Fe-C Alloy Melts
• Chemical State of Chromium in CaO-SiO_2 Base Oxides Annealed under Different Conditions
• Distribution of Cobalt between MgO-Saturated FeO_x-MgO-CaO-SiO_2 Slag and Fe-Cu-Co Molten Alloy
• 1-III-3 Vitamin C Biosynthesis and Translocation in Tomato (Lycopersicum esculentum) Fruits
• On the Nuclear Interaction of Mu-Mesons
• Influence of Bottom Bubbling Condition on Metal Emulsion Formation in Lead-Salt System
• Degree of Undercooling and Contact Angle of Pure Iron at 1933K on Single-crystal Al_2O_3, MgO, and MgAl_2O_4 under Argon Atmosphere with Controlled Oxygen Partial Pressure
• Evaluation of Bubble Eye Area to Improve Gas/Liquid Reaction Rates at Bath Surfaces
• Expression Analysis of the VTC2 and VTC5 Genes Encoding GDP-L-Galactose Phosphorylase, an Enzyme Involved in Ascorbate Biosynthesis, in Arabidopsis thaliana
• Estimation of Heat Transfer of a Front-heating Front-detection Laser Flash Method Measuring Thermal Conductivity for Silicate Melts at High Temperatures
• Thermal and Optical Properties of Yb3+-Doped Y2O3 Single Crystal Grown by the Micro-Pulling-Down Method
• A Non-NadB Type L-Aspartate Dehydrogenase from Ralstonia eutropha Strain JMP134 : Molecular Characterization and Physiological Functions
• Expression Analysis of the VTC2 and VTC5 Genes Encoding GDP-L-Galactose Phosphorylase, an Enzyme Involved in Ascorbate Biosynthesis, in Arabidopsis thaliana
• Behavior of Vanadium and Niobium during Hot Metal Dephosphorization by CaO-SiO_2-Fe_tO Slag
• Influence of Solid CaO and Liquid Slag on Hot Metal Desulfurization
• Mechanism of Change in Chemical Composition of Oxide Inclusions in Fe-Cr Alloys Deoxidized with Mn and Si by Heat Treatment at 1473 K
• Preface to the Special Issue on "Fundamentals and Applications of Non-metallic Inclusions in Solid Steel"
• Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Al–Cu Alloy and Molten Salt System
• Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Al-Cu Alloy and Molten Salt System
• Influence of Slag Basicity and Temperature on Fe and Mn Distribution between Liquid Fe–Mn–Ca–O–S Matte and Molten Slag
• Equilibrium Distribution Ratio of Phosphorus between Solid Iron and Magnesiowustite-saturated Al2O3–CaO–FetO–MgO–SiO2 Slag at 1623 K

もっと見る 閉じる

スポンサーリンク