SLURRY SOLVENT EXTRACTION PROCESS FOR THE RECOVERY OF METALS FROM SOLID MATERIALS
A solvent extraction process is described for recovering uranium from low grade uranium bearing minerals such as carnotit or shale. The finely communited ore is made up as an aqueous slurry containing the necessary amount of acid to solubilize the uranium and simultaneously or subsequently contacted with an organic solvent extractant such as the alkyl ortho-, or pyro phosphoric acids, alkyl phosphites or alkyl phosphonates in combination with a diluent such as kerosene or carbon tetrachlorids. The extractant phase is separated from the slurry and treated by any suitable process to recover the uranium therefrom. One method for recovering the uranium comprises treating the extract with aqueous HF containing a reducing agent such as ferrous sulfate, which reduces the uranium and causes it to be precipitated as uranium tetrafluoride.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-014124
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2869979
- OSTI ID:
- 4255603
- Country of Publication:
- United States
- Language:
- English
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SOLVENT EXTRACTION PROCESS FOR THE RECOVERY OF METALS FROM PHOSPHORIC ACID
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Related Subjects
ALKYL RADICALS
CARBON TETRACHLORIDE
CARNOTITE
CHEMICAL REACTIONS
HYDROCARBONS
HYDROFLUORIC ACID
IRON SULFATES
KEROSENE
ORGANIC ACIDS
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
PRECIPITATION
RECOVERY
REDUCTION
ROCKS
SEPARATION PROCESSES
SHALES
SLURRIES
SOLIDS
SOLUTIONS
SOLVENT EXTRACTION
TECHNOLOGY
URANIUM
URANIUM MINERALS
URANIUM TETRAFLUORIDE
VANADIUM OXIDES
WATER