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Fabrication of Mg(OH)2 by Electrolysis Using MgCl2 Aqueous Solution

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Magnesium Technology 2018 (TMS 2018)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Mg(OH)2 is usually used as a flame retardant agent, a heavy metal removing agent and a flue gas desulfurization agent in the field of environmental protection. In this work, Mg(OH)2 was prepared by electrolytic method using MgCl2 aqueous solution as the main raw materials. And the X-ray diffraction results proved that pure Mg(OH)2 crystals can be fabricated by the electrolysis method. The Mg(OH)2 prepared has two microscopic forms, shaped in block and elongated fibrous. The effects of concentration of MgCl2 solution, current density, temperature and time of electrolysis on the current efficiency and energy consumption in the electrolysis process were studied in this paper. Within the experimental range, current efficiency increased but energy consumption decreased with the increase of MgCl2 solution concentration, electrolysis temperature and time. The effects of current density on the current efficiency and energy consumption rested on the concentration of the MgCl2 solution and electrolysis temperature.

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (U1508217), the Fundamental Research Funds for the Central Universities (N162505002).

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Authors and Affiliations

  1. Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Ministry of Education, Special Metallurgy and Process Engineering Institute, Northeastern University, Shenyang, 110819, Liaoning, China

    Xijuan Pan, Zhihe Dou, Ting-an Zhang, Yukun Ren, Guozhi Lyu, Junjie Zhang & Xiuxiu Han

Authors
  1. Xijuan Pan
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  2. Zhihe Dou
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  3. Ting-an Zhang
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  4. Yukun Ren
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  5. Guozhi Lyu
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  6. Junjie Zhang
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  7. Xiuxiu Han
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Corresponding author

Correspondence to Ting-an Zhang .

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Editors and Affiliations

  1. Lund University, Lund, Sweden

    Dmytro Orlov

  2. Pacific Northwest National Laboratory, Richland, Washington, USA

    Vineet Joshi

  3. Arizona State University, Tempe, Arizona, USA

    Kiran N. Solanki

  4. IND LLC, South Jordan, Utah, USA

    Neale R. Neelameggham

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Pan, X. et al. (2018). Fabrication of Mg(OH)2 by Electrolysis Using MgCl2 Aqueous Solution. In: Orlov, D., Joshi, V., Solanki, K., Neelameggham, N. (eds) Magnesium Technology 2018. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72332-7_23

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