ArticleScientific reports2019
A novel application of hematite precipitation for high effective separation of Fe from Nd-Fe-B scrap.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Perspective on pH adjustment in hydrometallurgical recycling of valuable metals from waste.Frontiers in chemistry · 2023Article
- Selective sulfidation of metal compounds.Nature · 2022Article
- High Performance of Commercial PAC on the Simultaneous Desulfurization and Denitrification of Wastewater From a Coal-Fired Heating Plant.Frontiers in chemistry · 2022Article
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Authors and funding
10 authors.
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Abstract
Rare earths, e.g. neodymium (Nd), praseodymium (Pr) and dysprosium (Dy), are abundant in the rare earth sintered magnet scrap (Nd-Fe-B scrap), but their recycling is tedious and costly due to the high content of impurity Fe. Herein, a novel approach was developed to effectively recycle rare earths from the scrap via an integrated acid dissolution and hematite precipitation method. The scrap contained 63.4% Fe, 21.6% Nd, 8.1% Pr and 3.9% Dy. It was dissolved in nitric, hydrochloric and sulfuric acids, separately. Nearly all impurity Fe in the scrap was converted to Fe
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