Solvent extraction, separation and recovery of dysprosium (Dy) and neodymium (Nd) from aqueous solutions: Waste recycling strategies for permanent magnet …

HS Yoon, CJ Kim, KW Chung, SD Kim, JY Lee… - Hydrometallurgy, 2016 - Elsevier
Nowadays, permanent magnets (PMs) play a key role in electrical and electronic goods, and
thus, their demand is incessantly increasing in countries such as Korea. These PMs …

Progress in the separation processes for rare earth resources

Z Zhang, Q Jia, W Liao - Handbook on the physics and chemistry of rare …, 2015 - Elsevier
Rare earth elements (REs) are a set of 17 elements including the 15 lanthanides plus
scandium and yttrium, which have unique and widespread applications in magnetism …

Separation of rare earths and other valuable metals from deep-eutectic solvents: a new alternative for the recycling of used NdFeB magnets

S Riaño, M Petranikova, B Onghena… - Rsc Advances, 2017 - pubs.rsc.org
Deep-eutectic solvents (DESs) are used as a promising alternative to aqueous solutions for
the recovery of valuable metals from NdFeB magnets. A deep-eutectic solvent based on …

Recovery of neodymium and dysprosium from NdFeB magnet swarf

E Padhan, AK Nayak, K Sarangi - Hydrometallurgy, 2017 - Elsevier
The rare earth elements neodymium and dysprosium were separated and recovered from
NdFeB permanent magnet swarf by hydrometallurgical route. The magnet swarf was …

Hydrometallurgical digestion and leaching of Iranian monazite concentrate containing rare earth elements Th, Ce, La and Nd

F Sadri, F Rashchi, A Amini - International Journal of Mineral Processing, 2017 - Elsevier
Rare earth elements (REEs) have an ever-increasing variety of applications in modern
technology. In the present work, the possibility of extraction of rare earth elements cerium …

Recovery of neodymium and praseodymium from nitrate-based leachate of permanent magnet by solvent extraction with trioctylphosphine oxide

BJ Rho, PP Sun, SY Cho - Separation and purification technology, 2020 - Elsevier
For recovery of the rare earth elements neodymium and praseodymium from end-life
permanent magnets, solvent extraction experiments were carried out on the nitrate-based …

[PDF][PDF] 钕铁硼废料资源化回收利用研究进展

付利雯, 汪金良, 雷翔, 王厚庆 - 有色金属科学与工程, 2020 - ysjskxygc.xml-journal.net
中国每年会产生很多钕铁硼废料, 这些废料中含有大量的稀土等有价元素.
对钕铁硼废料进行资源化回收利用有助于改善中国稀土资源短缺, 环境污染和资源浪费的问题 …

Synergistic extraction and separation of rare earths from chloride medium by the mixture of HEHAPP and D2EHPA

S Kuang, Z Zhang, Y Li, H Wei, W Liao - Hydrometallurgy, 2017 - Elsevier
A binary mixture of α-aminophosphonic acid extractant 2-ethylhexyl-3-(2-ethylhexylamino)
pentan-3-yl-phosphonic acid (HEHAPP, H 2 A 2) and di-(2-ethylhexyl) phosphoric acid …

Separation and recovery of neodymium and praseodymium from permanent magnet scrap through the hydrometallurgical route

PK Parhi, TR Sethy, PC Rout… - Separation Science and …, 2016 - Taylor & Francis
The leaching of neodymium (Nd) and praseodymium from scrap permanent magnet bearing
64.37% Fe, 30.57% Nd and 0.42% Pr and 0.71% B was carried out using HCl solution. X-ray …

Solvent extraction and separation of Nd, Pr and Dy from leach liquor of waste NdFeB magnet using the nitrate form of Mextral® 336At in the presence of aquo …

A Kumari, KK Sahu, SK Sahu - Metals, 2019 - mdpi.com
Solvent extraction and separation of Pr, Nd and Dy from a synthetic leach solution of spent
NdFeB magnet from wind turbines in the presence of aquo-complexing agent …