## __2016-Sustainable Industrial Processing Summit__

SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing

Editors: | Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A |

Publisher: | Flogen Star OUTREACH |

Publication Year: | 2016 |

Pages: | 480 pages |

ISBN: | 978-1-987820-46-1 |

ISSN: | 2291-1227 (**Metals and Materials Processing in a Clean Environment Series**) |

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## Development of mathematical model based on multiphase theory for Neodymium oxide Reduction in the electrowinning cells

**Jose Adilson
de Castro**^{1}; Marcos
de Campos^{1}; JUN-ICHIRO
YAGI^{2};

^{1}UFF - FEDERAL FLUMINENSE UNIVERSITY, Volta Redonda, Brazil; ^{2}TOHOKU UNIVERSITY, Sendai, Japan;

**Type of Paper:** Regular

**Id Paper:** 188

**Topic:** 3## Abstract:

A model for simulating the reduction of metallic neodymium from molten salts is presented. The model is based on the transport phenomena theory using the multiphase multicomponent concept. The model was formulated with basis on the Navier-Stokes equations coupled with the Maxwell's relations.

The model is useful for predicting optimum parameters of processing, as for example cell geometry and current density. Parameters such as cell efficiency and stability could be determined using the sensibility analysis under possible operational conditions of current density. The gaseous phase production and turbulence quantities are used to quantify the flow stability within the electrowinning reduction cell.

## Keywords:

Extraction; Fluids; Modeling; Non-ferrous; Process;

## Cite this article as:

de Castro J, de Campos M, YAGI J. Development of mathematical model based on multiphase theory for Neodymium oxide Reduction in the electrowinning cells. In: Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 442-443.