Volume 7, Issue 5, September 2018, Page: 186-191
Effect of Physical Properties of Pr-Nd Oxide on Its Melton Salt Electrolysis
Wenyi Zhao, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Rongrong Fan, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Zhaoqiang Li, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Yan Wang, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Cheng Zhang, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Rong Wang, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Xin Guo, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Yu Wang, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Xuxia Zhang, Department of Hydrometallurgy, Baotou Research Institute of Rare Earths, Baotou, China
Received: Aug. 13, 2018;       Accepted: Aug. 28, 2018;       Published: Oct. 11, 2018
DOI: 10.11648/j.ijmsa.20180705.13      View  308      Downloads  28
Abstract
Industrial Pr-Nd oxide product has different physical properties, and shows different behaviors in the process of producing Pr-Nd metal by molten salt electrolytic. To meet the specific requirements of molten salt electrolysis for the physical properties of Pr-Nd oxide, different physical properties of raw materials such as particle size, specific surface area, morphology, bulk density and mobility were compared by chemical analogy experiment and actual production, the influence of physical properties of Pr-Nd oxide on its electrolysis process were studied, and the physical properties of the suitable electrolytic Pr-Nd oxide are quantified. The results show that particle size and morphology are the most important physical properties of Pr-Nd oxide in the electrolysis process. Pr-Nd oxide with good physical property requires the particle size is uniform and not too big or small. Additionally, the microstructure should not be over dispersed, but with agglomerate status, besides the micro surface should have porous structure to avoid melting phenomenon. The physical properties of raw materials produced by the method of oxalic acid precipitation are more stable than that by the ammonium bicarbonate precipitation method, and the good and stable physical properties are more suitable for molten salt electrolysis. So the oxalic acid precipitation method can be used as reference of the ammonium bicarbonate precipitation method.
Keywords
Pr-Nd Oxide, Physical Properties, Electrolysis, Dissolution Rate
To cite this article
Wenyi Zhao, Rongrong Fan, Zhaoqiang Li, Yan Wang, Cheng Zhang, Rong Wang, Xin Guo, Yu Wang, Xuxia Zhang, Effect of Physical Properties of Pr-Nd Oxide on Its Melton Salt Electrolysis, International Journal of Materials Science and Applications. Vol. 7, No. 5, 2018, pp. 186-191. doi: 10.11648/j.ijmsa.20180705.13
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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