FremgangsmÕte for smelting av tungmetallholdige stoffer

摘要

Melting zinc-containing materials (4) containing heavy metals comprises inserting the materials into a converter or rotating oven acting as a melting furnace and melting using a burner (2) operating by means of a gas containing a large amount of oxygen or oxygen (6) and fossil fuels (5). The burner and/or the liquid slag (10) are reductively moved so that the zinc is converted into the gas phase, the gases leave the melt, are mixed with the exhaust gas (7) and removed. Preferred Features: At least one part of the materials containing heavy metals is conveyed in the finely ground state through the flame of the burner and partially melted in the flame.