C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/212
C22B 60/02 (2006.01)
Patent
CA 1105264
ABSTRACT OF THE DISCLOSURE A process for the recovery of uranium values from uranium-bearing material by sulphuric acid leaching when the material also contains siliceous matter which is at least partly soluble in sulphuric acid. The process comprises leach- ing the material with sulphuric acid in an aqueous slurry under oxidizing conditions at a temperature within the range of from about 65°C to about 200°C and at elevated pressure, with sul- phuric acid being present in a quantity only slightly in excess of the amount required to dissolve the uranium and any other element whose dissolution is desired, to produce an insoluble residue containing siliceous matter and a leach solution con- taining dissolved values of uranium and any other desired element.
306172
Masters Ian M.
Sefton Verner B.
Na
Sherritt International Consultants Inc.
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