Solution mining process

Details Solution mining process Solution mining process

1978-05-05

1982-11-09

Pate, III, William F.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

E21B 4328

Patent

active

043581587

ABSTRACT:
Process for the solution mining of minerals from a subterranean formation in which a dilute carbonic acid leaching solution is injected through a first well into the formation and a pregnant liquor containing the dissolved minerals is recovered from a second well. Subsequently the direction of flow through the formation is reversed by injecting the leaching solution through the second well and recovering the pregnant liquor from the first well. Optionally, an oxidizing agent is injected either simultaneously with the leaching solution, or alternately with slugs of the leaching solution.

REFERENCES:
patent: 2818240 (1957-12-01), Livingston
patent: 3130960 (1964-04-01), Martin
patent: 3278233 (1966-10-01), Hurd et al.
patent: 3708206 (1973-01-01), Hard
patent: 3713698 (1973-01-01), Rhoades
patent: 3792903 (1974-02-01), Rhoades
patent: 4032194 (1977-06-01), Howell
patent: 4066297 (1978-01-01), Spence
patent: 4082358 (1978-04-01), Learmont
patent: 4082359 (1978-04-01), Spence
patent: 4083603 (1978-04-01), Stoves
patent: 4105253 (1978-08-01), Showalter
"Winning of Useful Elements from Minerals by Leaching Underground", Mining Magazine, vol. 118, No. 2, Feb., 1968, pp. 129, 131, 133 and 134.

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