Pyrometallurgical smelting of lead and copper
AssigneeMetallurgical Processes Limited
InventorMaurice R. Smith
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Abstract
A method of smelting an oxide charge containing lead and copper in a blast furnace, wherein molten lead bullion flowing to the furnace bottom and containing at least 8% by weight of copper is diluted with metallic lead of lower copper content in the furnace shaft, or in the hearth at the bottom of the furnace, or in a forehearth into which furnace products are passed from the furnace, or in a transfer ladle into which lead bullion passes from the forehearth.
Claims10
A method of smelting an oxidic charge containing lead and copper in a blast furnace, comprising diluting molten lead bullion flowing to the furnace bottom and containing at least 8% by weight of copper with a diluent consisting of metallic lead of lower copper content, said dilution being effected in a forehearth into which furnace products are passed from the furnace.
Dependencies are inferred from the claim text.