Methods of processing uraniferous ores

Details Methods of processing uraniferous ores Methods of processing uraniferous ores

C - Chemistry, Metallurgy

22

B

53/212

C22B 60/02 (2006.01)

Patent

CA 1125032

ABSTRACT OF THE DISCLOSURE 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.

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