Process for separating tin as well as, if required, copper from scrap melts, in particular, tinplate melts or metallic melts
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United States of America Patent
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Aug 22, 2000
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N/A
app pub date -
May 5, 1998
filing date -
Sep 10, 1996
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Expired
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Abstract
In a process for separating tin as well as, if required, copper from scrap melts, in particular, tinplate melts or metallic melts as formed in the working up of waste or metal-oxide-containing combustion residues, the carbon content of the melt is adjusted to 3 to 4.2% by weight and hot wind, oxygen or air enriched with oxygen is locally blown on partial regions of the surface of the melt bath, whereby SnO is discharged, via the gaseous phase, from the redox-gradient-exhibiting zone formed between the carbon-rich bath and the iron oxides produced by top-blowing.
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