Production of metallic lead

Details Production of metallic lead Production of metallic lead

1977-02-16

1978-05-02

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204114, C25C 118

Patent

active

040873404

ABSTRACT:
The production of metallic lead from lead bearing sources such as lead sulfide concentrates may be improved by subjecting the lead sulfide concentrates to a prehalogenation activation treatment at a temperature in the range of from about 300.degree. to about 600.degree. C. before subjecting said concentrate to the halogenation step which is effected at a temperature in the range of from about 80.degree. to about 120.degree. C. followed by leaching, filtering, crystallization and electrolysis.

REFERENCES:
patent: 1980809 (1934-11-01), Levy
patent: 3477928 (1969-11-01), Coltrinari et al.
patent: 4011146 (1977-03-01), Coltrinari et al.

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