Influence of the Interfacial Tension on the Droplet Formation by Bubble Rupture in Sn(Te) and Salt System

Yoshida, Hironori; Liu, Jiang; Kim, Sun-Joong; Gao, Xu; Ueda, Shigeru; Kitamura, Shinji

doi:10.2355/isijinternational.isijint-2016-303

Cited by 9 publications

(5 citation statements)

References 12 publications

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“…Because the measured droplet sizes in this study and in the study by Reiter et al 6) were very different, a direct comparison using the nondimensional equation proposed by Reiter et al 6) is inappropriate. 14) However, the dependence on the density observed in this study was very similar to their result. Figure 18 shows the sedimentation coefficient in the Sn/ salt system compared with the Pb/salt 10) and Al/salt 11) systems.…”

Section: Discussioncontrasting

confidence: 47%

Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Sn–Sb–Cu Alloy and Molten Salt System

et al. 2017

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Section: Discussioncontrasting

confidence: 47%

Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Sn–Sb–Cu Alloy and Molten Salt System

et al. 2017

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“…(6) for the oxide and chloride systems. 3,[14][15][16][17][18][19][22][23][24][25] It was clear that the difference in the parameter (μ s /μ m ) 0.15 between the two systems was much larger than the difference in other parameters. Therefore, the difference in the viscosity of the upper phase between the two systems might be the key factor governing he difference in the droplet size between the systems.…”

Section: Size Of Metal Dropletsmentioning

confidence: 99%

Metal Emulsion in Sn Alloy/oxide System by Bottom Gas Injection

et al. 2017

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A metal emulsion is formed by the passage of gas bubbles through the interface between the metal phase and the slag phase in the steelmaking process. Emulsified metal droplets have great potential to improve the chemical reaction efficiency during motion in bulk slag. Several studies have focused on the formation mechanism of metal droplets and on the influence of the physical properties of the system on this mechanism. In this study, Sn alloy and sodium tetraborate were used to simulate molten steel and slag, respectively. Gas bubbles were introduced from the bottom of a molten metal bath at various gas flow rates. Slag containing metal droplets at the center of the slag phase was sampled, and the metal droplets were extracted by the dissolution of the oxide in a solvent. The number and diameter of the droplets were measured using a digital microscope. Under the same experimental conditions, the number of metal droplets in the oxide system was smaller but their size was larger than those in a previously investigated Sn alloy/chloride system. In both the systems, the total mass of metal droplets formed by a single bubble increased with an increase in the volume of the gas bubble, and when the volume of the gas bubble was small, the total mass of droplets in the oxide system was smaller than that in the chloride system. The sedimentation rate and coefficient in the oxide system were lower than those in the chloride system.

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“…The influence of the physical properties and bubbling conditions on the generation of metal emulsions has been investigated by many researchers using cold models (water/oil 4,5) , Hg/water, etc. 6,7) ) or systems comprising low-melting-point metals and molten salts 6,7,[11][12][13][14][15][16] . The interfacial area between slag and metal largely increases, increasing the rate of decarburization and dephosphorization.…”

Section: Introductionmentioning

confidence: 99%

“…The droplets can undergo decarburization and dephosphorization at the interface with the slag phase. A larger reaction interface can improve the rate of reaction between molten steel and slag 15) . However, fine droplets that are too small cannot descend into the molten steel, but remain in the slag for a long time and cause a decrease in the metallic yield 17) .…”

Section: Introductionmentioning

confidence: 99%

Influence of Droplet Size and Oil Viscosity on the Descending Velocity of Droplets Using Water Model With and Without Stirring

et al. 2023

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Metal emulsions have been studied for several decades as a method of increasing the efficiency of the steelmaking process. This study was performed using a water model, observable at room temperature, to compensate for the disadvantages of the high-temperature experiment, the results of which are difficult to observe visually. As a substitute for metal-in-slag emulsions, experiments were conducted by dropping distilled water into silicone oil and comparing the results with the results of a calculation by momentum balance equations. The descending velocity of the water droplet decreased as the diameter of the

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Influence of the Interfacial Tension on the Droplet Formation by Bubble Rupture in Sn(Te) and Salt System

Cited by 9 publications

References 12 publications

Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Sn–Sb–Cu Alloy and Molten Salt System

Influence of Bottom Bubbling Rate on Formation of Metal Emulsion in Sn–Sb–Cu Alloy and Molten Salt System

Metal Emulsion in Sn Alloy/oxide System by Bottom Gas Injection

Influence of Droplet Size and Oil Viscosity on the Descending Velocity of Droplets Using Water Model With and Without Stirring

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