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Influence of the Physical Properties of Liquids and Diameter of Bubble on the Formation of Liquid Column at the Interface of Two Liquid Phases by the Rising Bubble

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Abstract

The formation of metal emulsion in a steel-making process enhances the reaction between metal and slag. A part of the metal emulsion is formed by a bubble passing through the interface between the metal and slag phases. In a previous study, it was determined that the formation of metal column by the bubble is related to the formation of metal droplets. In this research, the effects of bubble particle size, interfacial tension, viscosity of upper layer, and lower layer density on the formation of lower liquid column were investigated. In order to conduct an in situ observation of gas and liquid behaviors, aqueous solution and silicon oil systems were employed. It was determined that a narrow and elongated column forms liquid droplets in the upper liquid layer and contributes to the formation of droplets. The height of the column and the volume of droplets increase with the increase in bubble size. The influence of interfacial tension of the two liquid phases on the column height and the formation of droplet is slight. The height of the formed column decreases with the increase in the density of lower liquid.

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Authors and Affiliations

  1. JFE Steel, Okayama, 7128511, Japan

    Masanori Tanno

  2. Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, Tokyo, 1528550, Japan

    Jiang Liu

  3. Institute of Multidisciplinary Research of Advanced Materials, Tohoku University, Sendai, 9808557, Japan

    Xu Gao, Shigeru Ueda & Shin-ya Kitamura

  4. Department of Materials Science & Engineering, Chosun University, Gwanju, 61452, Korea

    Sun-Joong Kim

Authors
  1. Masanori Tanno
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  2. Jiang Liu
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  3. Xu Gao
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  4. Sun-Joong Kim
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  5. Shigeru Ueda
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  6. Shin-ya Kitamura
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Corresponding author

Correspondence to Shigeru Ueda.

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Manuscript submitted June 14, 2017.

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Tanno, M., Liu, J., Gao, X. et al. Influence of the Physical Properties of Liquids and Diameter of Bubble on the Formation of Liquid Column at the Interface of Two Liquid Phases by the Rising Bubble. Metall Mater Trans B 48, 2913–2921 (2017). https://doi.org/10.1007/s11663-017-1106-6

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  • DOI: https://doi.org/10.1007/s11663-017-1106-6

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