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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 754 pages |
| ISBN: | 978-0-9879917-3-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Effect Of The Composition And Electrode Distance On The Electrolysis
Miseon Choi1; Go-Gi Lee2; Changkyu Lee2; Sungkoo Jo2; Jaeyoung Jung2;1RIST, Gyeongbuk, Korea, South; 2RIST, Pohang, Korea, South;
Type of Paper: Regular
Id Paper: 274
Topic: 12
Abstract:
In recent years, there has been an acceleration of the interest in cost reduction of titanium production which is closely related to electrolysis process. The energy consumption to produce metal magnesium from magnesium chloride in molten salt electrolysis is required 70-80% of the total energy for titanium sponge production. In this reason, efforts to reduce the energy consumption of electrolysis have continued practically. There are a number of main factors which affects in energy consumption of electrolysis process; the composition of the electrolyte, the distance between anode and cathode, the flow of the electrolyte. In this paper, therefore, an effect of the factors mentioned above on the energy consumption of electrolysis was studied with monopolar diaphragmless electrolytic cell have originally designed. The energy consumption is lower in electrolytes containing a large proportion of sodium chloride and smaller amounts of calcium fluoride. The optimum composition of the electrolyte for the production of magnesium should be NaCl 50~60 %, CaCl2 20~25 %, MgCl2 20~25 %, and CaF2 2~5 %. The energy consumption markedly decreases if the electrode distance is reduced which means the effect of the electrode distance on the energy consumption is the stronger.