CD shopping page |
2011-Sustainable Industrial Processing Summit
|
| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 630 pages |
| ISBN: | 978-0-9879917-2-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Study On The Electrodeoxidation Of Solid Dy2O3 In Molten CaCl2
Hongwei Xie1; Jinxia Wang2; Yuchun Zhai2; Xiangyu Zou2; lang xiaochuan3;1NORTHEASTERN UNIVERSITY, Shenyang, China; 2NORTHEASTERN UNIVERSITY, shenyang city, China; 3NORTHEASTERN UNIVERSITY, shenyang, China;
Type of Paper: Regular
Id Paper: 281
Topic: 6
Abstract:
The electrodeoxidation of Dy2O3 for preparing Dy metal in CaCl2 melt was studied by cyclic voltammetry, constant potential electrolysis techniques and thermodynamics analysis. Two electrodes system was employed during measuring cyclic voltammograms. Only one cathodic current peak(at about -1.75V ) was discovered before the decomposition of CaCl2 which corresponded to the electrodeoxidation of Dy2O3 in the cyclic voltammograms in molten CaCl2 at 850℃. The validity of the cyclic voltammograms was further confirmed by thermodynamics analysis and the CO2、CO anodic gas detected. In constant potential electrolysis products there were no other intermediates except Dy2O3 and Dy by XRD. And the above results confirmed the following electrodeoxidation sequence: Dy2O3→Dy.