Environmentally friendly separation of dysprosium and neodymium by fractional precipitation of coordination polymers

被引：7
|
作者：
Tasaki-Handa, Yuiko [1 ]
Abe, Yukie [1 ]
Ooi, Kenta [1 ]
Narita, Hirokazu [1 ]
Tanaka, Mikiya [1 ]
Wakisaka, Akihiro [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Res Inst Environm Management Technol, Tsukuba, Ibaraki, Japan
来源：
RSC ADVANCES | 2014年 / 4卷 / 39期
关键词：
ION-EXCHANGE;
D O I：
10.1039/c4ra00257a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Against a backdrop of increasing demand, the recovery of neodymium (Nd) and especially dysprosium (Dy) from manufacturing scraps and used magnets has necessitated the development of Nd/Dy separation technologies. To this end, we suggest a simple and environmentally friendly separation method by fractional precipitation of coordination polymers (CPs)-extended complexes of metal ions and organic ligands. With the di(2-ethylhexyl) phosphoric acid ligand functioning as a precipitant, Dy was exclusively precipitated as a CP due to its precipitation equilibrium that is considerably different from that of Nd.
引用
收藏
页码：20496 / 20498
页数：3
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