METAL CONTAMINATION ASSOCIATED WITH DROSS PROCESSING

摘要

Processing dross to recover the contained metal units has been practiced almost as long as there has been an aluminum industry. While the primary goal is to maximize metal recovery from the dross, other factors are important as well. It is normally desirable to produce metal with a composition similar to the starting alloy. This may not be possible in many instances. This paper will look at the sources and mechanisms for metal contamination. It will also offer suggestions on how the contamination can be minimized.