Production of metallic lead

Details Production of metallic lead Production of metallic lead

1978-02-21

1979-04-17

Andrews, M. J.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25C 118

Patent

active

041499476

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 treatment with carbon dioxide followed by solubilizing the lead carbonate in hydrofluosilicic acid and electrowinning the product to produce a purer lead sheet on the cathodes.

REFERENCES:
patent: 862871 (1907-08-01), Anderson
patent: 2109755 (1938-03-01), Sessions
patent: 3972790 (1976-08-01), Stauter

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