Process for the production of lead from sulphide ores

Details Process for the production of lead from sulphide ores Process for the production of lead from sulphide ores

1985-10-03

1987-01-06

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204128, 75 6, 75101BE, 75104, 75709, 75111, 75112, 75113, 75114, 75120, 423100, 423103, C25C 114

Patent

active

046345078

ABSTRACT:
The process for production of lead from lead sulphide ores involves leaching the ores with a ferric chloride solution, at a temperature from about 70.degree. C. to 105.degree. C., at a pH of from about 4.0 to 0.5, recovering the lead by cementation with metallic zinc, recovering the resultant zinc chloride by solvent extraction, and electrowinning zinc metal from the zinc chloride solution. Chlorine is also electrolytically produced for regenerating ferric chloride for the leaching step.

REFERENCES:
patent: 4011146 (1977-03-01), Coltinari et al.
patent: 4272341 (1981-06-01), Lamb
patent: 4288304 (1981-09-01), De Marthe et al.
patent: 4337128 (1984-06-01), Haakonsen et al.
patent: 4362607 (1982-12-01), Ritcey et al.
patent: 4421616 (1983-12-01), Bjune et al.
patent: 4465569 (1984-08-01), Bjune et al.

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