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Advances in Tribology
Volume 2011 (2011), Article ID 395716, 5 pages
http://dx.doi.org/10.1155/2011/395716
Research Article

A Characterization Method for Al Recovery from Dross Based on Compression at Elevated Temperatures

Mechanical Engineering Department, Technical University of Western Macedonia, Koila, 50100 Kozani, Greece

Received 15 June 2011; Revised 20 September 2011; Accepted 26 September 2011

Academic Editor: Alexander Tsouknidas

Copyright © 2011 S. Maropoulos et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

When aluminum or its alloys are melted, considerable amounts of dross are produced. The alloy type and the method used in the production of aluminum products play an important role in the amount of dross that will result as a byproduct. The current needs of the Al industry as well as economic and environmental factors demand the recovery of the pure material that is lost during dross removal by simple and efficient methods that can be applied within the foundry. Most cases of Al recovery employ methods of dross compression at high temperatures. This investigation attempts to develop a mathematical model to characterize the efficiency of the recovery process that can be implemented for any dross collection method or even compression device, facilitating the direct comparison of recovery methods.