URANIUM RECOVERY FROM MAGNESIUM FLUORIDE SLAG. CARBONATE LEACHING
Information is preseated on the following basic steps in the carbonale leaching process: grinding the slag to expose uranium included in slag crystals; air roasting the slag to oxidize the uranium to U/sub 3/O/sub 8/; leaching the slag with a carbonate-bicarbonate solution containing an oxidant to convert the U/ sub 3/O/sub8/ to the soluble uranyl tricarbonate complex; further grinding the slag in part of the leaching circuit to complete tbe quantative exposure of uranium to the leach solution; washing the leached slag cake to remove residual soluble uranium; and caustic precipitation of the uranium from slag-free leach liquor. Work on this process indicates that under the proper grinding, roasting, and leaching conditions, the uranium content of magnesium fluoride slag can be reduced to less than 0.05% on a dry basis and that a uranium concentrate can be obtained which is sufficiently low in fluoride to be suitable as refinery feed material. (J.H.M.)
- Research Organization:
- Mallinckrodt Chemical Works, St. Charles, Mo.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-002843
- OSTI ID:
- 4291373
- Journal Information:
- Industrial and Engineering Chemistry (U.S.) Formerly J. Ind. Eng. Chem. Superseded by Chem. Technol., Journal Name: Industrial and Engineering Chemistry (U.S.) Formerly J. Ind. Eng. Chem. Superseded by Chem. Technol. Vol. Vol: 50; ISSN IECHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
CARBONATES
CHEMICALS
CHEMISTRY
COMPLEXES
CRYSTALS
ENRICHMENT
FLUORIDES
GRINDING
HYDROXIDES
LEACHING
MAGNESIUM FLUORIDES
OXIDATION
PERFORMANCE
PRECIPITATION
PYROLYSIS
QUANTITY RATIO
RECOVERY
REFINING
RESIDUES
SLAGS
SOLUBILITY
SOLUTIONS
SOLVENT EXTRACTION
TABLES
U3O8
URANIUM
URANYL COMPOUNDS
USES
WATER