THE PRODUCTION OF URANIUM AND URANYL SULPHATE

Patent · Wed Feb 24 04:00:00 EST 1960

OSTI ID:4194979

A method is given for recovering U from bonab reduction slags. The crushed slag is roasted and moistened with concentrated H/sub 2/SO/sub 4/and heated. In an example 100 parts of slag containing 44% F, 29% Mg, 21% U, 4% C, and 2% O are crushed and roasted at 700 to 800 deg C for 4 hours, cooled, and ground to 200 mesh. Then it is mixed with 300 parts of 98% H/sub 2/SO/sub 4/ and heated at 250 deg C until no more HF is evolved. The resulting sludge is F free and contains all the U in acid-soluble form. Addition of 500 parts of H/sub 2/O, air bubbling, and addition of H/sub 2/O/sub 2/ caused oxidation to UO/sub 2/SO/ sub 4/. Heating to 90 or 95 deg C decomposed peroxides. The pH is then adjusted to 3.7 and heated to 95 to 100 deg C to precipitate Fe. Filtration removes precipitates. (T.R.H.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-009445
• OSTI ID: 4194979
• Report Number(s): GB 829091
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ACIDITY
CARBON
CHEMISTRY
CRUSHING
DECOMPOSITION
FILTERS
FLUORINE
HYDROFLUORIC ACID
HYDROGEN PEROXIDES
IRON
MAGNESIUM
METALS
OXIDATION
OXYGEN
PRECIPITATION
PRODUCTION
RECOVERY
REDUCTION
SLAGS
SULFATES
SULFURIC ACID
TEMPERATURE
URANIUM
URANYL COMPOUNDS
USES