Schulze, R. ; Abbasalizadeh, Aida ; Bulach, Winfried ; Schebek, Liselotte ; Buchert, M. (2018)
An Ex-ante LCA Study of Rare Earth Extraction from NdFeB Magnet
Scrap Using Molten Salt Electrolysis.
In: Journal of Sustainable Metallurgy, 4
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A new recycling process for the extraction of rare earths from neodymium–iron–boron (NdFeB) magnet scrap is being developed, based on the direct extraction of rare earths from end-of-life magnet material in a molten fluoride electrolysis bath. Rare earths are required in their metallic form for the production of new NdFeB magnets, and the suggested process achieves this through a single step. The process is being developed on a laboratory scale and has been proven to work in principle. It is expected to be environmentally beneficial when compared to longer processing routes. Conducting life cycle assessment at R&D stage can provide valuable information to help steer process development into an environmentally favorable direction. We conducted a life cycle assessment study to provide a quantitative estimate of the impacts associated with the process being developed and to compare the prospective impacts against those of the current state-of-the-art technology. The comparison of this recycling route with primary production shows that the recycling process has the potential for much lower process-specific impacts when compared against the current rare earth primary production route. The study also highlights that perfluorocarbon emissions, which occur during primary rare earth production, warrant further investigation.
| Typ des Eintrags: | Artikel | ||||
|---|---|---|---|---|---|
| Erschienen: | 2018 | ||||
| Autor(en): | Schulze, R. ; Abbasalizadeh, Aida ; Bulach, Winfried ; Schebek, Liselotte ; Buchert, M. | ||||
| Art des Eintrags: | Bibliographie | ||||
| Titel: | An Ex-ante LCA Study of Rare Earth Extraction from NdFeB Magnet Scrap Using Molten Salt Electrolysis | ||||
| Sprache: | Englisch | ||||
| Publikationsjahr: | 7 November 2018 | ||||
| Verlag: | Springer | ||||
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Sustainable Metallurgy | ||||
| Jahrgang/Volume einer Zeitschrift: | 4 | ||||
| URL / URN: | https://link.springer.com/article/10.1007%2Fs40831-018-0198-... | ||||
| Kurzbeschreibung (Abstract): | A new recycling process for the extraction of rare earths from neodymium–iron–boron (NdFeB) magnet scrap is being developed, based on the direct extraction of rare earths from end-of-life magnet material in a molten fluoride electrolysis bath. Rare earths are required in their metallic form for the production of new NdFeB magnets, and the suggested process achieves this through a single step. The process is being developed on a laboratory scale and has been proven to work in principle. It is expected to be environmentally beneficial when compared to longer processing routes. Conducting life cycle assessment at R&D stage can provide valuable information to help steer process development into an environmentally favorable direction. We conducted a life cycle assessment study to provide a quantitative estimate of the impacts associated with the process being developed and to compare the prospective impacts against those of the current state-of-the-art technology. The comparison of this recycling route with primary production shows that the recycling process has the potential for much lower process-specific impacts when compared against the current rare earth primary production route. The study also highlights that perfluorocarbon emissions, which occur during primary rare earth production, warrant further investigation. |
||||
| Schlagworte: |
|
||||
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung > Fachgebiet Stoffstrommanagement und Ressourcenwirtschaft |
||||
| Hinterlegungsdatum: | 29 Jan 2019 09:39 | ||||
| Letzte Änderung: | 29 Jan 2019 09:39 | ||||
| PPN: | |||||
| Schlagworte: |
|
||||
| Export: | |||||
| Suche nach Titel in: | TUfind oder in Google | ||||
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum