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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Rare-Earths: From the Extraction to the Application
Marcos de Campos1; Jose Adilson de Castro1;1UFF - FEDERAL FLUMINENSE UNIVERSITY, Volta Redonda, Brazil;
Type of Paper: Regular
Id Paper: 186
Topic: 3
Abstract:
In the present day, rare-earths relevance has increased. Market and applications of rare-earths are discussed in detail. Praseodymium, Neodymium, Dysprosium and Terbium are in high demand for magnet fabrication. High-Efficiency Wind turbines for energy production require a large amount of these elements. The Europium price has decreased recently. Europium is usually in high demand due to its use in TV and computer screens. However, the replacement from CFLB - compact fluorescent ligh bulbs - to LED light bulbs reduced the need of Europium. There is significant oversupply of Cerium. Research and development should focus on new Cerium applications. Lanthanum has large applications in catalysis and batteries. Rare-earths can be extracted as byproduct of existing mines, for example phosphat mines that produce fertilizers. Heavy rare-earths as Dy and Tb can be obtained as byproduct of tin mines. As the price of rare-earth concentrate is very low, research should focus on more economic methods for rare earth oxide separation.
Keywords:
Rare-Earths; Magnet; ApplicationsReferences:
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