Electrochemical mining

Details Electrochemical mining Electrochemical mining

1974-05-17

1976-05-18

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204107, 204109, 204113, 204117, 204118, C25C 112, C25C 106, C25C 116, C25C 120

Patent

active

039576019

ABSTRACT:
A method for the direct extraction of metal values from subterranean sulfide ore deposits is described utilizing electrochemical techniques. The method eliminates the physical digging and crushing of ore. The process can be controlled to extract only the metal values and other useful chemicals from the earth deposit, thus reducing waste disposal and environmental pollution problems. The prior art difficulty with polarization of the electrodes is overcome by utilizing electrolytes of high halogen ion content, thus eliminating insulating sulfur buildups and permitting economical usage of higher current densities.

REFERENCES:
patent: 556092 (1896-03-01), Frolich
patent: 636321 (1899-11-01), Craney
patent: 822175 (1906-05-01), Nolcott
patent: 2646396 (1953-07-01), Dean
patent: 2761829 (1956-09-01), Dolloff
patent: 3616277 (1971-10-01), Adamson et al.
"Modern Electroplating" by F. A. Lowenheim, 2nd Ed., 1963, p. 737.
"Theoretical and Applied Electrochemistry" by Thompson, Revised Ed., 1925, p. 216.
"Modern Electroplating" by F. A. Lowenheim, 2nd Ed., 1963, p. 34.

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