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2011-Sustainable Industrial Processing Summit
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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) |
Electrochemical measurements are powerful tools for investigating electrowinning processes in molten salts. Recently, we have developed several innovative methods to obtain in-situ information on molten salt behaviour and phenonoma:• Dynamic measurements of resistance and capacitance obtained simultaneously during electrolysis;• A Fast Fourier Transform Current Pulse technique to investigate anode bubble resistance. However, non-electrochemical techniques are often required in order to more fully understand the complex processes that occur. To this end, the electrolysis group at CSIRO has collaborated with a number of other groups within CSIRO to develop additional tools. This paper will describe a number of these techniques, including: • High–precision, gas chromatographic–mass spectrometric detection (GC-MS) of perfluorocarbon and other off-gases in both laboratory- and plant-scale Hall-Héroult cells.• Synchrotron X-ray diffraction phase-mapping of an inert anode in an operating FFC-type laboratory cell;