| 摘要 |
PCT No. PCT/AT97/00196 Sec. 371 Date May 5, 1998 Sec. 102(e) Date May 5, 1998 PCT Filed Sep. 9, 1997 PCT Pub. No. WO98/11263 PCT Pub. Date Mar. 19, 1998In 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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