Molten salt electrolysis for sustainable metals extraction and materials processing: A review

Yan, Xiao Y. and Fray, Derek J. (2010). Molten salt electrolysis for sustainable metals extraction and materials processing: A review. In Shing Kuai and Ji Meng (Ed.), Electrolysis: Theory, Types and Applications (pp. 255-302) New York, NY, U.S.A.: Nova Science.

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Name Description MIMEType Size Downloads
Author Yan, Xiao Y.
Fray, Derek J.
Title of chapter Molten salt electrolysis for sustainable metals extraction and materials processing: A review
Title of book Electrolysis: Theory, Types and Applications
Place of Publication New York, NY, U.S.A.
Publisher Nova Science
Publication Year 2010
Sub-type Research book chapter (original research)
Series Chemistry Research and Applications
ISBN 9781608766192
1608766195
Editor Shing Kuai
Ji Meng
Chapter number 6
Start page 255
End page 302
Total pages 48
Total chapters 19
Collection year 2011
Language eng
Formatted Abstract/Summary
The processing of material and their eventual recycling, with eliminated or minimized greenhouse gas emission, pose great technological challenges. This is particularly true for metals industry since most established high temperature extraction technologies use carbon as a reductant to reduce metal oxides and as a heat source by carbon combustion, causing CO2 formation. Therefore, one must look at totally new strategies for metals extraction without using carbon as the reductant. Electricity, i.e., electrons, is one of most effective alternatives to the carbon reductant. Fused salt electrolysis has proved to be an attractive route and this technology would be further enhanced if the electricity were generated from renewable energy sources. As well as primary extraction, molten salt electrolysis also has enormous potential for materials processing. Considerable challenges facing fused salt electrolysis technology towards sustainable development lie within two key categories: (i) improvement of existing technologies and (ii) development of novel technologies, both having much less or zero environmental impacts. The latter can potentially lead to displacement of many conventional non-electrochemical technologies for metals extraction and materials processing. Unfortunately, the molten salt electrolysis technology for the above applications remains in many respects underexploited over the past 50 years. Only in the recent 15 years, it is undergoing a significant renaissance because of several innovative ideas being explored both in the laboratory and also at the pilot scale.
© 2010 Nova Science Publishers, Inc.
Q-Index Code B1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Book Chapter
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Created: Thu, 10 Mar 2011, 00:18:51 EST by Dr Xiao-yong Yan on behalf of School of Chemical Engineering