Methods of processing uraniferous ores

Details Methods of processing uraniferous ores Methods of processing uraniferous ores

1979-05-02

1981-11-17

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 18, C01G 4300

Patent

active

043011233

ABSTRACT:
Refractory uranium is crushed and impregnated with a concentrated aqueous solution of sulphuric acid to provide a mixture which retains a solid phase consistency. The impregnated mixture is disintegrated in an aqueous solution to form a thick paste or pulp. The pulp is digested for a duration not exceeding 10 hours and the uranium recovered by solid/liquid separation. The sulphuric acid content of the concentrated solution is selected for the residual acidity at the end of pulp digestion to be of from 10 g/l to 40 g/l.

REFERENCES:
patent: 2830872 (1958-04-01), McCullough
patent: 2849280 (1958-08-01), Baron et al.
patent: 3808306 (1974-04-01), Smith et al.
patent: 4098866 (1978-07-01), Carnahan et al.
patent: 4131639 (1978-12-01), Mather
patent: 4175108 (1979-11-01), Poitte

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