Process for the carbothermic reduction of zinc oxide to zinc.

摘要

The invention relates to a process for the carbothermic reduction of zinc oxide to zinc comprising the following process steps of zinc oxide and coal in an oven as reactants, reduction of the zinc oxide to liquid molten zinc (20) by using the coal as a heating agent and as a reactant and cutting off the liquid zinc melt (20) from the oven as a product. The heat supply for the endothermic reaction takes place by the condensation of a blown into the furnace zinc vapor (24), which acts as heating steam.