Electrowinning cell having partially shielded anodes

Details Electrowinning cell having partially shielded anodes Electrowinning cell having partially shielded anodes

1982-12-15

1984-05-08

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204DIG7, 204279, 204286, C25C 700, C25D 1706

Patent

active

044473079

ABSTRACT:
An electrowinning cell has anodes shielded by an electrical-flux-impervious, electrically non-conductive material which protectively covers each of the anode suspension members and adjoining upper margins of the main body of the anodes. At least one electrical-flux-pervious opening of proper shape, size, and appropriate position to permit sufficient current flux to flow to an associated cathode to induce a uniform current distribution on the upper portions of the cathode is provided for each suspension member. The resulting uniform current distribution insures deposition of highly pure metal values of uniform thickness without the usual undesirable extraneous formations on the top edge of the electrowon metal cathode. The shielding material may be applied to an anode before attachment to its hangerbar for suspension in an electrowinning cell or may be applied to an anode which is already in service.

REFERENCES:
patent: 1574446 (1926-02-01), Robinson
patent: 2833710 (1958-05-01), Mielke
patent: 3331763 (1967-07-01), Mabey

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