Authors
C Erust, A Akcil, A Tuncuk, HACI Deveci, EY Yazici
Publication date
2021/2/17
Journal
Mineral Processing and Extractive Metallurgy Review
Volume
42
Issue
2
Pages
90-101
Publisher
Taylor & Francis
Description
Waste electrical and electronic equipments (WEEE or e-waste) are an important source for rare earth elements (REEs). Among various type of WEEE, NdFeB magnets are known for their high content of neodymium (Nd) and dysprosium (Dy). Recovery of REEs from NdFeB magnets is of prime interest for the industry to meet the ever-growing demand for REEs. In this study, some physical and hydrometallurgical approaches including demagnetization, grinding, screening, leaching, precipitation and extraction have been adopted to study the Nd and Dy recovery from spent NdFeB magnets. Various inorganic (HCl, HNO₃, H₂SO₄ and aqua regia) and organic reagents (acetic acid and oxalic acid) were tested as lixiviants for leaching of the magnets. As a new approach, the recovery of Nd and Dy in the leaching solution was tested by eliminating the iron by a solution purification process involving precipitation of ferric …
Total citations
202020212022202320242971812
Scholar articles
C Erust, A Akcil, A Tuncuk, H Deveci, EY Yazici - Mineral Processing and Extractive Metallurgy Review, 2021