Electrolytic production of metallic lead

Details Electrolytic production of metallic lead Electrolytic production of metallic lead

1978-03-09

1979-01-23

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25C 118

Patent

active

041359976

ABSTRACT:
The production of metallic lead from lead bearing sources may be facilitated by a process in which a lead bearing source such as lead sulfide ores or concentrates are halogenated and the halogenated source is then brine leached in the presence of a sodium chloride solution to separate the soluble lead halide from solid material such as gangue and elemental sulfur. The soluble lead halide is recrystallized at a reduced temperature and thereafter converted to lead carbonate by treatment with sodium carbonate. Metallic lead in the form of sheets is recovered by solubilizing the lead carbonate in hydrofluosilicic acid and electrowinning lead from the solution.

REFERENCES:
patent: 1850757 (1932-03-01), Levy

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