Two stage selective oxidative leach method to separately recover

Details Two stage selective oxidative leach method to separately recover Two stage selective oxidative leach method to separately recover

1982-04-27

1984-03-20

Kyle, Deborah L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 3, 423 8, 423 10, 423 17, 423 20, 423 63, 423 68, 299 4, 299 5, C01G 4300, C01G 3100, C22B 6002, C22B 3422

Patent

active

044380771

ABSTRACT:
The present invention relates to a process for the recovery of uranium and other minerals from uranium ore where at least part of the uranium is present as refractory uranium-mineral complexes, comprising subjecting the uranium ore to mild oxidative carbonate leach fluid to dissolve and remove readily soluble uranium minerals, subsequently subjecting the uranium ore to an oxidative chemically severe leaching system to dissolve and remove the refractory uranium-mineral complexes, and separating and recovering the uranium and other mineral species in the leachate fluids. The process may be applied to in-situ uranium leaching operations or to surface leaching operations.

REFERENCES:
patent: 1129029 (1915-02-01), Voet
patent: 1945611 (1934-02-01), Knight et al.
patent: 2630369 (1953-03-01), Burwell
patent: 2756122 (1956-07-01), McLean
patent: 3168370 (1965-02-01), Reusser
patent: 4155892 (1979-05-01), Hunkin et al.
patent: 4206182 (1980-06-01), Lafforgue et al.
patent: 4346936 (1982-08-01), Yan
Merritt, R. C., The Extractive Metallurgy of Uranium, Colorado School of Mines Research Institute, 1971, pp. 52, 61-63, 83, 342-343, 471.

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