Home >

news Help

Publication Information


Title
Japanese: 
English:Optimization of a Molten Salt Electrolytic Bath Geometry for Rare Earth Metal Recovery using a Finite Element Method 
Author
Japanese: 沼田 博雄, 赤塚 洋, 松浦 治明.  
English: Hiroo Numata, Hiroshi Akatsuka, Haruaki Matsuura.  
Language English 
Journal/Book name
Japanese: 
English:Z. Naturforsch 
Volume, Number, Page Vol. 68a        pp. 48 - 58
Published date Feb. 15, 2013 
Publisher
Japanese: 
English:Verlag der Zeitschrift fuer Naturforschung 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.degruyter.com/view/journals/zna/68/1-2/article-p48.xml
 
DOI https://doi.org/10.5560/ZNA.2012-0106
Abstract For a recycling procedure for rare earths from spent hydrogen absorbing alloys by rare earths electrodeposition in a molten salt, the electrolytic bath and the cathode accessories have been optimized by evaluating the appropriate secondary current distribution using finite element method (FEM) computer simulation. The desirable cathode dish as an accessory was designed to prevent drops of less adherent electrodeposits, which improved the current density distribution compared with an a priori determined one. In the bath optimization, a reciprocal proportionality of the difference between the maximum and minimum current densities vs. the ratio of volume to surface area (or electrolyte volume) was found. It was found by FEM that if a resistive floating mass is assumed on the electrolyte surface, the observed necking in the electrodeposit near the electrolyte surface can be analyzed.

©2007 Tokyo Institute of Technology All rights reserved.