Chemical extraction of metals from ores

Details Chemical extraction of metals from ores Chemical extraction of metals from ores

1987-04-24

1988-04-26

Stoll, Robert L.

Metallurgical apparatus

Having means for leaching and subsequently precipitating a...

266168, 266170, 75101R, 75105, 204105R, 423 27, 423 29, 423150, C22B 302

Patent

active

047399732

ABSTRACT:
A novel system for chemically leaching ore that decreases pollution to the environment and that enhances reaction kinetics and economic considerations. An impervious covering (18) blankets a distribution network of drip lines (17) laid over the ore heap (14). A lixiviate containing solution is forced by means of a pump (11) through a venturi eductor (19) into the distribution network of drip lines (17) for application to the ore heap (14). After percolating through the ore heap (14), the leach solution is recycled through a recovery system (16) to the venturi eductor (19).

REFERENCES:
patent: 4017309 (1977-04-01), Johnson
patent: 4318892 (1982-03-01), Von Kohorn
patent: 4473532 (1984-09-01), Rose et al.
patent: 4526615 (1985-07-01), Johnson

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