Fray Symposium - Study Of Fluid Flow In Magnesium Electrolytic Cell In The Kroll Process
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2011-Sustainable Industrial Processing Summit
SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates

Editors:Florian K
Publisher:Flogen Star OUTREACH
Publication Year:2012
Pages:754 pages
ISBN:978-0-9879917-3-7
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)

    Study Of Fluid Flow In Magnesium Electrolytic Cell In The Kroll Process

    Go-Gi Lee1; Hyun-Na Bae2; Seon-Hyo Kim2;
    1RIST, Pohang, Korea, South; 2POSTECH, Pohang, Korea, South;
    Type of Paper: Regular
    Id Paper: 118
    Topic: 12

    Abstract:

    Kroll process is a well-known extraction process which produces titanium. It consists of 4 steps containing chlorination, reduction, vacuum distillation, electrolysis. Electrolysis process is not directly related to production of metal titanium, but it has an important role being recycling of by-product, magnesium chloride. During this electrolysis process, metal magnesium is oxidized at cathode and chloride gas is reduced at anode. Chloride in forms of bubble makes various flows in the molten magnesium electrolytic cell. Flow is a significant factor that determines efficiency of process. Therefore, a three-dimensional mathematical model was developed to investigate the flow of the molten magnesium salt, and validated against data of pilot scale experiment. The model predicted the flow field with applying change of variable such as cell temperature, distance between electrodes, and design of electrode. And operating parameters which optimize the electrolysis process was suggested by simulation for productivity and cost savings.

    Keywords:

    Kroll process, electrolysis, magnesium chloride, bubble, flow, simulation

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    Cite this article as:

    Lee G, Bae H, Kim S. Study Of Fluid Flow In Magnesium Electrolytic Cell In The Kroll Process. In: Florian K, editors. Sustainable Industrial Processing Summit SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates. Volume 4. Montreal(Canada): FLOGEN Star Outreach;2012. p..