SOLVENT EXTRACTION PROCESS
Patent
·
OSTI ID:4312425
In improved solvent extraction process is described for the extraction of metal values from highly dilute aqueous solutions. The process comprises contacting an aqueous solution with an organic substantially water-immiscible solvent, whereby metal values are taken up by a solvent extract phase; scrubbing the solvent extract phase with an aqueous scrubbing solution; separating an aqueous solution from the scrubbed solvent extract phase; and contacting the scrubbed solvent phase with an aqueous medium whereby the extracted metal values are removed from the solvent phase and taken up by said medium to form a strip solution containing said metal values, the aqueous scrubbing solution being a mixture of strip solution and an aqueous solution which contains mineral acids anions and is free of the metal values. The process is particularly effective for purifying uranium, where one starts with impure aqueous uranyl nitrate, extracts with tributyl phosphate dissolved in carbon tetrachloride, scrubs with aqueous nitric acid and employs water to strip the uranium from the scrubbed organic phase.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-12-004595
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2809091
- OSTI ID:
- 4312425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANIONS
BETATRONS
BEVATRON
BUTYL PHOSPHATES
CARBON TETRACHLORIDE
CHARGED PARTICLES
CLEANING
DECAY
ENERGY RANGE
ERRORS
EXTRACTION COLUMNS
KAONS
KAONS-PLUS
LENSES
MAGNETIC FIELDS
MASS
MEASURED VALUES
METALS
MINERAL ACIDS
MIXING
MOMENTUM
NITRIC ACID
NUCLEAR EMULSIONS
NUMERICALS
ORGANIC COMPOUNDS
PARTICLE MODELS
PARTICLE TRACKS
PATENT
PATENTS
PROTON BEAMS
PROTONS
SOLUTIONS
SOLVENTS
SPECTROMETERS
SYNCHROTRONS
TARGETS
URANIUM
URANYL NITRATES
VELOCITY
WATER
BETATRONS
BEVATRON
BUTYL PHOSPHATES
CARBON TETRACHLORIDE
CHARGED PARTICLES
CLEANING
DECAY
ENERGY RANGE
ERRORS
EXTRACTION COLUMNS
KAONS
KAONS-PLUS
LENSES
MAGNETIC FIELDS
MASS
MEASURED VALUES
METALS
MINERAL ACIDS
MIXING
MOMENTUM
NITRIC ACID
NUCLEAR EMULSIONS
NUMERICALS
ORGANIC COMPOUNDS
PARTICLE MODELS
PARTICLE TRACKS
PATENT
PATENTS
PROTON BEAMS
PROTONS
SOLUTIONS
SOLVENTS
SPECTROMETERS
SYNCHROTRONS
TARGETS
URANIUM
URANYL NITRATES
VELOCITY
WATER