Solution mining potassium chloride from heated subterranean cavi

Details Solution mining potassium chloride from heated subterranean cavi Solution mining potassium chloride from heated subterranean cavi

1979-02-01

1980-12-16

Pate, III, William F.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

299 5, E21C 4108

Patent

active

042392870

ABSTRACT:
Disclosed is a method of increasing the solution mining rate of potassium chloride from a cavity in a subterranean ore deposit containing potassium chloride and sodium chloride, in which cavity ore has been rubblized to effect a large contact surface area, by (1) solution mining the ore rubble at a first temperature for a time sufficient to determine the mining rate at that temperature; (2) increasing the temperature of the cavity solution to a temperature determined to be near the highest temperature at which the invariant composition is achievable at the solvent dissolving rate; and (3) solution mining the ore at the higher temperature.

REFERENCES:
patent: 2331890 (1943-10-01), Cross
patent: 2665124 (1954-01-01), Cross
patent: 2919909 (1960-01-01), Rule
patent: 3050290 (1962-08-01), Caldwell
patent: 3148000 (1964-09-01), Dahms et al.
patent: 3278234 (1966-10-01), Helvenston et al.
patent: 3284137 (1966-11-01), Wolber

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