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Neodymium and gadolinium extraction from molten fluorides by reduction on a reactive electrode

Nourry, Christophe and Massot, Laurent and Chamelot, Pierre and Taxil, Pierre Neodymium and gadolinium extraction from molten fluorides by reduction on a reactive electrode. (2009) Journal of Applied Electrochemistry, vol. 39 (n° 12). pp. 2359-2367. ISSN 0021-891X

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Official URL: http://dx.doi.org/10.1007/s10800-009-9922-2

Abstract

This work describes the electrochemical extraction on a reactive cathode (Cu, Ni) of two lanthanides Ln (Ln = Nd and Gd) from molten LiF-CaF2 medium at 840 and 920°C for Nd and 940°C for Gd. Extraction runs have been performed and the operating conditions (cathodic material and temperature) optimised. The titration of the Nd and Gd concentrations in the melt during extraction used square wave voltammetry. At the end of each run, the residual Ln content was checked by ICP-AES; the extraction efficiencies of the two lanthanides were found to be more than 99.8% on both reactive substrates.

Item Type:Article
Additional Information:The original publication is available at www.springerlink.com
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Laurent CASSAYRE
Deposited On:30 Jun 2009 13:54

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