Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Dissolving or chemical reaction
Patent
1980-07-10
1982-07-20
Novosad, Stephen J.
Mining or in situ disintegration of hard material
In situ conversion of solid to fluid
Dissolving or chemical reaction
423 17, E21B 4328
Patent
active
043402534
ABSTRACT:
A process for the in-situ mining of subterranean uranium ore deposits comprising pretreating the deposits by the steps of injecting an aqueous inorganic chloride solution therein to substantially saturate the deposits and injecting an aqueous alkaline lixiviant solution therein to flush the chloride solution from the deposits. Thereafter, the pretreated deposits may be solution mined in conventional fashion such as by injecting an oxidant-containing aqueous alkaline lixiviant therein and recovering uranium-containing lixiviant solution. The inorganic chloride solution is preferably potassium chloride and the preferred lixiviants are potassium carbonate, sodium carbonate and ammonium carbonate.
REFERENCES:
patent: 2896930 (1959-07-01), Menke
patent: 3087539 (1963-04-01), Maurer, Jr. et al.
patent: 3792903 (1974-02-01), Rhoades
patent: 4114693 (1978-09-01), Foster et al.
patent: 4258955 (1981-03-01), Habib, Jr.
Breland William M.
Guilinger Terry R.
Schechter Robert S.
Brown William S.
Gardiner Donald A.
Novosad Stephen J.
The United States of America as represented by the Secretary of
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