Apparatus for recovering zinc from residues

Details Apparatus for recovering zinc from residues Apparatus for recovering zinc from residues

1977-09-09

1979-11-20

Andrews, R. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C25C 700

Patent

active

041750276

ABSTRACT:
In a process for recovering zinc from residues containing it, particularly rom ashes and hard-spelters coming from galvanizing baths, and which comprises the extraction by electrolysis of the zinc contained in the alkaline or acid solutions obtained. The solutions deriving from the ashes are obtained by dissolving their relatively low metallic zinc content granulometric fraction, the high metallic zinc content granulometric fraction of these ashes being re-introduced directly into the galvanizing bath advantageously after a leaching treatment and the solutions deriving from the hard-spelters are obtained by dissolving them either by having recourse to a corrosion cell or by forming by means of these hard-spelters the anodes of an electrolysis circuit.

REFERENCES:
patent: 1600257 (1926-09-01), Topping
patent: 2569367 (1951-09-01), Bradner et al.
patent: 3475296 (1969-10-01), Campbell
patent: 3887440 (1975-06-01), Ichioka

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