Method for producing metallic lead by direct lead- smelting

Details Method for producing metallic lead by direct lead- smelting Method for producing metallic lead by direct lead- smelting

C - Chemistry, Metallurgy

22

B

53/333

C22B 13/02 (2006.01)

Patent

CA 1233029

ABSTRACT 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 mate- rial.

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