The impact of rising Ni and V impurity levels in smelter grade aluminium and potential control strategies

Grandfield, J. F. and Taylor, J. A. (2009). The impact of rising Ni and V impurity levels in smelter grade aluminium and potential control strategies. In: J.A. Taylor, J.F. Grandfield and A. Prasad, Aluminium Cast House Technology XI. 11th Australasian Aluminium Cast House Technology Conference, Gold Coast, QLD, Australia, (129-136). 13-16 September 2009. doi:10.4028/www.scientific.net/MSF.630.129


Author Grandfield, J. F.
Taylor, J. A.
Title of paper The impact of rising Ni and V impurity levels in smelter grade aluminium and potential control strategies
Conference name 11th Australasian Aluminium Cast House Technology Conference
Conference location Gold Coast, QLD, Australia
Conference dates 13-16 September 2009
Proceedings title Aluminium Cast House Technology XI   Check publisher's open access policy
Journal name Materials Science Forum   Check publisher's open access policy
Place of Publication Zurich, Switzerland
Publisher Trans Tech Publications
Publication Year 2009
Year available 2009
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/MSF.630.129
ISBN 9780878493166
0878493166
ISSN 0255-5476
Editor J.A. Taylor
J.F. Grandfield
A. Prasad
Volume 630
Start page 129
End page 136
Total pages 8
Collection year 2010
Language eng
Abstract/Summary The technology for controlling smelter metal impurities post reduction has steadily improved. For example, control of sodium has seen the reduction and, in some plants, the elimination of chlorine gas from the casthouse. However, changes in the purity of cell feed materials such as anodes are giving rise to new challenges in impurity control; vanadium and nickel levels are an emerging problem. This paper briefly reviews the important impurities and their effects on downstream casting, forming and final application properties. Particular emphasis is given to nickel and vanadium. Strategies for controlling these impurities are also discussed and areas where new technology is needed are also highlighted. In some cases it is not known what the tolerable limits of impurities are. There are a plethora of metal refining techniques used in the extraction of other metals which could be investigated for the control of impurities in smelter grade aluminium.
Subjects 861101 Basic Aluminium Products
091207 Metals and Alloy Materials
C1
Keyword smelter metal impurities
aluminium
Impurities
V and Ni levels
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Unknown

 
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Created: Mon, 08 Mar 2010, 14:51:26 EST by Sally Beard on behalf of School of Mechanical and Mining Engineering