Production of metallic lead

Details Production of metallic lead Production of metallic lead

1978-03-03

1978-11-07

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204114, C25C 118

Patent

active

041244613

ABSTRACT:
Metallic lead may be obtained from lead bearing sources such as lead sulfide ores or concentrates by halogenating the lead source, brine leaching the lead halide to separate the soluble lead halide from solid material such as gangue and recrystallizing the lead halide at a reduced temperature. Following this the lead halide is then converted to lead carbonate by treating the lead chloride with sodium bicarbonate. Thereafter the lead compounds are solubilized in hydrofluosilicic acid and subjected to electrowinning to produce lead sheet on the cathode.

REFERENCES:
patent: 2664393 (1953-12-01), Mathers et al.
patent: 2827410 (1958-03-01), Smyers et al.

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