2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 9: Molten Salts and Ionic Liquids, Energy Production
| Editors: | Kongoli F, Gaune-Escard M, Turna T, Mauntz M, Dodds H.L. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 390 pages |
| ISBN: | 978-1-987820-24-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Modeling of electro-winning behaviors of Zr depending on electrode location
Young Min Kim1; Hayk Nersisyan2; Young-Jun Lee1; Seul Ki Han3; Jong Hyeon Lee4;1CHUNG-NAM NATIONAL UNIVERSITY, Daejeon, Korea (Republic of [South] Korea); 2GRADUATE SCHOOL OF DEPARTMENT OF ADVANCED MATERIALS ENGINEERING, CHUNGNAM NATIONAL UNIVERSITY, Daejeon, Korea (Republic of [South] Korea); 3, Daejeon, Korea (Republic of [South] Korea); 4RASOM, CHUNGNAM NATIONAL UNIVERSITY, Daejeon, Korea (Republic of [South] Korea);
Type of Paper: Regular
Id Paper: 406
Topic: 13
Abstract:
Pickling treatment step is performed to remove impurities and oxide film on the cladding surface in a nuclear fuel manufacturing process. Waste acid solution occurring in this process has been discarded by doing neutralization treatment, and a large amount of Zirconium are dissolved in this solution. Precipitation compound of spent acid solution occurred in the process can be recycled by recovering as pure Zirconium and Zirconium alloys such as Cu-Zr using molten salt electro-winning method. Molten salt electro-winning process is a eco-friendly process, compared with the conventional rare metals aqueous metallurgical technology, because of utilizing an oxidation-reduction potential of the metal. Through this process, the Zirconium present in the pickling solution can be recovered as high purity metals 99% or more and reused for the manufacturing the cladding tube. It is also possible to use it as the form of Master alloys in general industry. Thus, it is expected to significantly reduce the manufacturing cost of the metal and the alloy by increasing the existing Zirconium scrap recycling rate. So, it has a technical importance to predict the electrodeposition behavior of Zirconium using the molten salt electro-winning technology for scale up. In this study, therefore, the composition of the Cu-Zr alloy depending on the position of the electrode was anticipated and calculated by using COMSOL Multiphysics simulation code.