| 摘要 |
<p>The invention relates to a method for producing metallic lead from lead-contain-ing starting materials by an oxidizing smelting process and subsequent reduction of the resultant oxidic molten bath. The reduction is effected with solid carbo-naceous reduction agent present in the melt, and it is ensured that solid carbo-nate-containing material, preferably limestone, dolomite or soda ash, is also present in the melt, together with the reduction agent. The method can be applied for working-up lead-starting materials of sulphidic, oxidic or sulphatic kind. In addition, the method can be applied to advantage for working-up lead-carbonate containing starting materials, where at least a part of the carbonate-containing material may comprise lead-starting material.</p> |
