2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 550 pages |
| ISBN: | 978-1-987820-26-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Metallic Neodymium Production
Jose Adilson de Castro1; Marcos de Campos1;1UFF - FEDERAL FLUMINENSE UNIVERSITY, Volta Redonda, Brazil;
Type of Paper: Regular
Id Paper: 119
Topic: 3
Abstract:
An overview of the state-of-art of Neodymium reduction is given. Neodymium has found large application in magnets of the Nd-Fe-B type. Calciothermic reduction is industrially used for other rare earths, but is not suitable for neodymium. The industrial production of metallic neodymium is by means of molten salts. It is discussed in the present study why fluorides are advantageous over chlorides. Special attention is given for Neodymium-Dysprosium and Neodymium-Praseodyimium because these alloys are very relevant for magnet production. A model able to simulate the metallic reduction of neodymium is in development. The model takes into account magnetohydrodynamics. Processing variables as cell size, current of operation and cathode consumption can be evaluated with the model.