| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Inst Quim, Sao Paulo, SP - Brazil
Total Affiliations: 1
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| Document type: | Journal article |
| Source: | HYDROMETALLURGY; v. 161, p. 22-28, MAY 2016. |
| Web of Science Citations: | 10 |
| Abstract | |
A successful nanohydrometallurgical separation of neodymium and lanthanum ions has been demonstrated by using superparamagnetic nanoparticles functionalized with ethylenediaminepropylsilane/ diethylenetriaminepentaacetic acid, as complexing agents. Neodymium is preferentially captured in relation to lanthanum, reflecting the trends of the stability constants dictated by the lanthanide contraction. A high separation efficiency (>99%) has been achieved after three successive complexation and releasing stages. The overall process can be performed under green and sustainable conditions, e.g., at room temperature, in aqueous solution and mild pHs, allowing the nanoparticles recycling, and dispensing the use of more time/energy consuming physical separation processes. (C) 2016 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 13/24725-4 - Supramolecular chemistry and nanotechnology |
| Grantee: | Henrique Eisi Toma |
| Support Opportunities: | Research Projects - Thematic Grants |