COMPARISONS OF ORGANIC EXTRACTANTS FOR IRRADIATED URANIUM: TRIBUTYLPHOSPHATE VS DI-SEC-BUTYL PHENYLPHOSPHONATE, DI-N-BUTYL PHENYLPHOSPHONATE, TRI-CAPRYL-PHOSPHATE AND TRI-SEC-BUTYLPHOSPHATE

Technical Report · Mon Jun 01 04:00:00 EDT 1959

DOI:https://doi.org/10.2172/4117998· OSTI ID:4117998

Gresky, A T; Mansfield, R G

Batch extraction scouting tests were performed to establish comparisons of distribution coefficients for uranium, thorium, fission product, and/or plutonium in systems involving several classes of organic phosphorus compounds (diluted in Amsco 125-82 and/or xylene) and aqueous nitrate or nitric acid solutions. Results have substantiated previous conclusions which suggested (1) that the branched secondary alkylphosphates and alkylphenylphosphonates would generally afford uranium separation factors (from thorium and fission products) superior to those obtainable by tributylphosphate (TBP, a normal alkylphosphate); and (2) that the phenylphosphonates would afford reasonably higher extractability of uranium. Preliminary data from irradiation tests with di-sec-butyl phenylphosphonate also support a previous conclusion (3) that the phenyl group affords greater radiation stability of the organo-phosphorus compounds. Since the compound di-sec-butyl phenylphosphonate (DSBPP) effectively combines the above advantages (1), (2), and (3), it has received especial attention as a potential practical competitor for TBP as a recovery process extractant. Results of preliminary counter-current extraction tests

• Research Organization: Oak Ridge National Lab., Tenn.
• NSA Number: NSA-15-007398
• OSTI ID: 4117998
• Report Number(s): CF-59-6-15
• Country of Publication: United States
• Language: English

Related Subjects

ALKYL RADICALS
AMSCO
BUTYL PHOSPHATES
CHEMISTRY
COUNTER CURRENT
DECONTAMINATION
EFFICIENCY
FISSION PRODUCTS
IRRADIATION
KEROSENE
NITRATES
NITRIC ACID
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHENYL RADICALS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PLUTONIUM
PUREX PROCESS
RADIATIONS
RECOVERY
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
STABILITY
TBP
THORIUM
URANIUM
XYLENE