Electric induction heating of underground ore deposits

Details Electric induction heating of underground ore deposits Electric induction heating of underground ore deposits

1975-03-10

1976-10-26

Novosad, Stephen J.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

219 1041, 219 1057, 299 4, 299 6, 299 14, E21C 3718, E21C 4106, E21C 4114, H05B 508

Patent

active

039880362

ABSTRACT:
A method of extracting metal from an underground ore body. The body is heated by electric induction to a temperature sufficient to break up the metallic ore compound and liquefy the metal. The metal flows into production wells where it is collected and transported to the surface, as by rapid solidification into powder or pellets in a pressurized gas stream. The electric induction is conveniently effected by passing alternating current through a conductor encompassing that portion of the ore body to be heated.

REFERENCES:
patent: 849524 (1907-04-01), Baker
patent: 1286394 (1918-12-01), Northrup
patent: 2256901 (1941-12-01), Horgard
patent: 2859952 (1958-11-01), Tour et al.
patent: 3472987 (1969-10-01), Viart
patent: 3727982 (1973-04-01), Itoh et al.

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