Recovery of uranium from material containing iron, arsenic and siliceous matter

Patent · Tue Sep 27 04:00:00 EDT 1983

OSTI ID:5598000

Weir, D R; Genik-Sas-Berezowsky, R M; Masters, I M

A process is disclosed for the recovery of uranium values from uranium-containing material which also contains iron, arsenic and siliceous matter. The process includes leaching the uranium-containing material in aqueous sulphuric acid solution under conditions to provide dissolved iron present in the resultant leach solution as predominantly ferrous iron rather than ferric iron and/or to provide a sulphuric acid concentration in the leach solution sufficiently high to substantially prevent the precipitation of arsenates. Uranium values are recovered from the leach solution by solvent extraction agent which has little affinity for arsenic.

• Assignee: Sherritt Gordon Mines Limited (Canada)
• Patent Number(s): US 4406864
• OSTI ID: 5598000
• Country of Publication: United States
• Language: English

Related Subjects

050400* -- Nuclear Fuels-- Feed Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
AMINES
ARSENIC
DISSOLUTION
ELEMENTS
EXTRACTION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON
LEACHING
METALS
ORES
ORGANIC COMPOUNDS
RECOVERY
SEMIMETALS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SULFURIC ACID
TRANSITION ELEMENTS
URANIUM ORES