Process of recovering lead from old lead accumulator scrap and r

Details Process of recovering lead from old lead accumulator scrap and r Process of recovering lead from old lead accumulator scrap and r

1985-01-23

1986-07-01

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204114, 204119, 75 77, 75 78, C25C 114

Patent

active

045978417

ABSTRACT:
A process of recovering lead from old lead accumulator scrap comprises the mechanical comminution of the old lead accumulators, the collection of old acid, the sifting of the broken plastic from the mixture of lead and lead compounds, the initial separating off of larger metallic parts, the application of the mixture of lead and lead compounds as a porous layer to a cathode plate and the arrangement thereof with the cathode plate in dilute sulphuric acid as an electrolyte opposite to an anode plate at a small spacing, and the reduction of the lead compounds to lead by the flow of current from the cathode plate to the anode plate. The electrolysis is first carried out at a higher sulphuric acid concentration and then at a lower sulphuric acid concentration.

REFERENCES:
patent: 588883 (1897-08-01), Salom
patent: 2070513 (1937-02-01), Cummings
patent: 2724732 (1955-11-01), Howard
patent: 4400247 (1983-08-01), Ginatta
General Chemistry, H. Sisten et al., 1949 MacMillan Co., p. 452.

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