Sulfide Capacities of CaO-Al2O3-SiO2 Slags in the Temperature Range 1673 K to 1773 K (1400 °C to 1500 °C)

Taniguchi, Yoshinori; Wang, Lijun; Sano, Nobuo; Seetharaman, Seshadri

doi:10.1007/s11663-011-9621-3

Cited by 26 publications

(35 citation statements)

References 9 publications

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“…, [2], [3], [4], [5], [6] MgO-SiO2 [1], [7], [8] CaO-Al2O3 [1], [9], [10], [11], [12], [13] CaO-MgO-SiO2 [7], [14] CaO-Al2O3-SiO2 [1], [4], [10], [13], [14], [15], [16], [17], [18] MgO-Al2O3-SiO2 [8], [19] CaO-MgO-Al2O3 [17], [19] CaO-MgO-Al2O3-SiO2 [20], [14], [16], [21], [22], [23], [24], [25], [26], [27], [28] Group II MnO-SiO2 [2], [5], [6], [8] MnO-Al2O3 [8] CaO-MnO-SiO2 [2], [5], [6], [29] MgO-MnO-SiO2 [8], [30]<...>…”

Section: Systemsmentioning

confidence: 99%

Estimation of Sulfide Capacities of Multicomponent Slags using Optical Basicity

2013

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An empirical model has been developed based on optical basicity to calculate the sulfide capacity of metallurgical molten slag. The model estimated sulfide capacities agree well with the experimental data for CaO-MgO-FeO-MnO-TiO2-Al2O3-SiO2-CaF2 multicomponent slags. It is found that the abilities of increasing sulfide capacity in MO-SiO2 (M=Ca, Mg, Fe and Mn) melts follow the order: MnO>FeO>CaO>MgO. Also, substitution of CaO for CaF2 decreases the sulfide capacity and substitution of TiO2 for SiO2 increases the sulfide capacity.

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Section: Systemsmentioning

confidence: 99%

Estimation of Sulfide Capacities of Multicomponent Slags using Optical Basicity

2013

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“…Other thermophysical proper ties are also been compared. The values for the sulfide capacity have been obtained from the works of Taniguchi et al [18]. The viscosities are taken from the classic works of Kozakevitch [22].…”

Section: Resultsmentioning

confidence: 99%

“…A mathematical model [17] was formulated through which appropriate design parameters for the experimental setup was obtained. For this, the order of magnitude for the diffusion coefficient for sulfur was taken from the classic works of Saitô and Kawai [15], the sulfide capacity and sulfur partition ratio were retrieved from the works of Taniguchi et al [18], and the slag density was retrieved from earlier experimental results of the present authors [19]. The Henrian activity coefficients for the metallic solution were also retrieved from literature [20].…”

Section: Element Investigated Tracer Used Slag System Methodsmentioning

confidence: 99%

Some Novel Studies of Thermodynamics, Kinetics and Transport Phenomena in Slags

Muhmood

Semykina²,

Iwase

et al. 2012

High Temperature Materials and Processes

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The following paper revolves around the research work conducted in collaboration during Profes sor Iwase's brief visits to the Materials Process Science Division at Royal Institute of Technology, Stockholm. The paper focuses on the thermodynamic aspects of CaOFeO-SiO 2 and CaO-FeO-SiO 2 -MnO slag oxidation in air and sulfur transport through CaO-Al 2 O 3 -SiO 2 slag. Ther modynamics of slag oxidation in air opens potential new areas in terms of focus on effective recovery of iron oxide from slag. The slag transport studies are of fundamental nature and focuses on a novel technique to calculate the diffusion of species through slag by analyzing its corre sponding concentration in the metal phase.

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“…Some of the very recent advances are the accurate sulphide capacity data generated with relevance to hot metal desulphurization by Taniguchi et al 23,24) Another important mile stone is the sulphide capacity measurements of slags containing CrOx.…”

Section: Slag Capacitiesmentioning

confidence: 99%

Understanding the Properties of Slags

et al. 2013

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Understanding of the properties of slags is a pre-requisite in optimizing their functions towards the making and refining of steel. Important contributions towards this objective have been made over the past half a century, in different parts of the world, especially in USA, UK, Germany and most of all in Japan. Knowledge of the slag properties enables in understanding the slag structure as well. The present review paper summarizes the contributions made in this field by the Division of Materials Process Science, Royal Institute of Technology, Stockholm, Sweden.The paper deals with the measurement and modeling of (a) thermochemical properties of slags, (b) thermophysical properties and (c) inter-property correlations. Some important contributions during recent years, such as the determination of the valence states of Cr and V in slags, wetting characteristics related to hot-metal desulphurization, diffusion of sulphide ions in slags, partition of phosphorus between slag and metal phases and studies on process phenomena such as foaming are highlighted. The research work has led to the evolution of a new basicity concept. Dynamic physical property measurements are pointed out to be an experimental tool towards understanding of reaction mechanisms. Developments with respect to slag/metal interfacial phenomena, viz. the concept of surface velocity and surface viscosity and quantification of these properties are presented.

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Sulfide Capacities of CaO-Al2O3-SiO2 Slags in the Temperature Range 1673 K to 1773 K (1400 °C to 1500 °C)

Cited by 26 publications

References 9 publications

Estimation of Sulfide Capacities of Multicomponent Slags using Optical Basicity

Estimation of Sulfide Capacities of Multicomponent Slags using Optical Basicity

Some Novel Studies of Thermodynamics, Kinetics and Transport Phenomena in Slags

Understanding the Properties of Slags

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