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Hydrometallurgical process for the treatment of ores

Patent ·
OSTI ID:6270638
;
A process is described 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 leaching the material with sulphuric acid in an aqueous slurry under oxidizing conditions at a temperature within the range of from about 65/sup 0/C. To about 200/sup 0/C. And at elevated pressure, with sulphuric 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 containing dissolved values of uranium and any other desired element.
Assignee:
Sherritt Gordon Mines Ltd (Canada)
Patent Number(s):
US 4272490
OSTI ID:
6270638
Country of Publication:
United States
Language:
English

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Related Subjects

050400* -- Nuclear Fuels-- Feed Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ARSENATES
ARSENIC COMPOUNDS
DISSOLUTION
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON COMPOUNDS
LEACHING
MEDIUM TEMPERATURE
ORES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SILICON COMPOUNDS
SULFURIC ACID
TRANSITION ELEMENT COMPOUNDS
URANIUM ORES