Method for obtaining neodymium or neodymium-iron alloy by electrolysis of melts containing neodymium compounds
US5346608A · kind A · utility
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3References
16Claims
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Key dates
| Filing date | Dec 18, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Dec 18, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/34
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Neodymium and neodymium-iron alloys are obtained by electrolysis of a neodymium salt melt using magnetite as the anode material. The cathode is non-consumable or is made of iron to be consumed and form a neodymium-iron alloy. The electrolysis is preferably carried out under a protective atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.