Apparatus for the separation of lead from a sulfidic concentrate

Details Apparatus for the separation of lead from a sulfidic concentrate Apparatus for the separation of lead from a sulfidic concentrate

1983-05-16

1984-10-23

Andrews, M. J.

Metallurgical apparatus

Means for extracting and refining metal

With separate refining zone

266182, F27B 316

Patent

active

044783949

ABSTRACT:
Lead in separated from a sulfidic concentrate by feeding a finely-divided concentrate, a silicate-high slagging agent, and air or oxygen-enriched air into the upper section of a suspension reaction shaft of a flash-smelting furnace in order to form a suspension and to oxidize the lead to lead oxide, by removing the gases via a riser pipe of the furnace and by discharging melt from a lower furnace of the flash-smelting furnace for further treatment. The slagging agent is fed at such a rate that substantially all of the melt is of the slag type and that all of the melt withdrawn from the lower furnace is directed to a reduction stage in order to reduce the lead silicate and to separate it as raw lead.

REFERENCES:
patent: 3326672 (1967-06-01), Worner
patent: 4088310 (1978-05-01), Noponen et al.

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