Production of metallic lead

摘要

Metallic lead is obtained from lead sulfide ores or concentrates by subjecting the concentrate to a drying step followed by halogenating the dried concentrate in a dry atmosphere at a temperature in the range of 90 DEG to about 120 DEG C. Thereafter the halogenated mixture is subjected to a water wash and leached with a brine solution. The brine solution is then filtered to separate elemental sulfur and residue from the solubilized lead halide, the latter being then crystallized and subjected to fused salt electrolysis to recover metallic lead.