| 摘要 |
<p>The invention concerns a method for recuperating metal elements from zinc-bearing raw materials, characterised in that it consists in extracting from said zinc-bearing raw materials the elements having affinity for lead, by contacting (300) said zinc-bearing materials with molten lead, to separately upgrade the elements having an affinity with indium, tin, silver, and the elements without any affinity for lead such as germanium, zinc, copper, iron and aluminium. Said zinc-bearing materials, in particular residues of the distillation of liquated impure zinc are subjected to separation in a tin-lead bath carried out in two steps.</p> |
