Electrochemical removal of chromium from chlorate solutions

Details Electrochemical removal of chromium from chlorate solutions Electrochemical removal of chromium from chlorate solutions

1986-10-29

1987-10-13

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204 97, 204283, 204284, 204 95, C25F 500

Patent

active

046997016

ABSTRACT:
Dichromate values, or other soluble hexavalent chromium values, are removed from cell liquor or other aqueous media containing the same by cathodically reducing the same to trivalent chromium, which deposits on the cathode as chromium hydroxide. The cathode has a high surface area three-dimensional structure which exposes the electrolyte to electrolysis for a relatively long period of time. An electrode potential of about 0 volts vs. SCE is applied to the cathode.

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patent: 4188272 (1980-02-01), Moring
patent: 4256557 (1981-03-01), Soboroff et al.
patent: 4318789 (1982-03-01), Marcantonio

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