Process for the simultaneous recovery of manganese dioxide and z

Details Process for the simultaneous recovery of manganese dioxide and z Process for the simultaneous recovery of manganese dioxide and z

1990-07-16

1991-02-12

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204114, C25B 100, C25C 116

Patent

active

049921495

ABSTRACT:
A process for the simultaneous electrolytic production of manganese dioxide and zinc from a mixture, preferably waste material consisting of spent batteries and other electronic components, contains various manganese oxides and zinc in various chemical forms, wherein the mixture is leached with an acidic solvent comprising tetrafluoroboric acid and, preferably, a reducing agent and boric acid, and subjected to an electrolysis in which zinc is plated on the cathode and manganese dioxide is plated on the anode.

REFERENCES:
patent: 3438878 (1969-04-01), Bell et al.
patent: 4071421 (1978-01-01), Masters et al.
patent: 4818354 (1989-04-01), Preisler et al.
patent: 4863817 (1989-09-01), Ogino et al.

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