Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Dissolving or chemical reaction
Patent
1981-08-18
1984-01-24
Purser, Ernest R.
Mining or in situ disintegration of hard material
In situ conversion of solid to fluid
Dissolving or chemical reaction
166281, E21B 4328, E21C 4114
Patent
active
044272367
ABSTRACT:
The present invention relates to a method for improving the recovery of mineral values from ore bodies subjected to in-situ leaching by controlling the flow behavior of the leaching solution. Foam is introduced into the higher permeability zones of the ore body to act as a diverting agent forcing the leaching fluids into the lower permeability previously non-contacted areas resulting in increased mineral values recovery.
REFERENCES:
patent: 3309140 (1967-03-01), Gardner et al.
patent: 3612179 (1971-10-01), Anderson et al.
patent: 3860289 (1975-01-01), Learmont
patent: 4085971 (1978-04-01), Jacoby
Abokhair John K.
McKillop Alexander J.
Mobil Oil Corporation
Powers, Jr. James F.
Purser Ernest R.
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