Evaluation of anion exchange resins for pre-analysis separation of actinides

Conference · Wed Jul 13 00:00:00 EDT 1977

OSTI ID:7087606

Navratil, J. D.

Anion exchange is the technique usually employed to separate plutonium and neptunium from actinides and other sample constituents prior to radiochemical determinations of the actinides. For plutonium-neptunium separations, neptunium(IV) is sorbed on an anion exchanger and the plutonium(III) allowed to pass with the effluent and wash streams from a 5M HNO/sub 3/-0.66M Al(NO/sub 3/)/sub 3/-0.2M Fe(SO/sub 3/NH/sub 2/)/sub 2/ feed solution. Plutonium is separated from plutonium-uranium solutions by sorbing plutonium(IV) on the resin from a 7M HNO/sub 3/ feed and permitting the uranium(VI) to follow the effluent and wash streams. In both cases, plutonium and neptunium are eluted from the resins with dilute nitric acid. For the actinide separations, pellicular, macroreticular, and microreticular (gel-type) anion exchange resins were compared. The pellicular and macroreticular (porous gel) resins showed faster elution and washing properties for the nonsorbable ions than the microreticular resins. However, the actinide breakthrough capacities of the pellicular and macroreticular resins were less than the microreticular resins but the breakthrough capacities for the macroreticular resins were dependent on actinide feed concentrations.

• Research Organization: Atomics International Div., Golden, Colo. (USA). Rocky Flats Plant
• DOE Contract Number: EY-76-C-04-3533
• OSTI ID: 7087606
• Report Number(s): RFP-2682; CONF-770846-1; TRN: 77-019252
• Resource Relation: Conference: 19. annual conference on analytical chemistry, Denver, Colorado, USA, 1 Aug 1977
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NEPTUNIUM
ION EXCHANGE
PLUTONIUM
URANIUM
ACTINIDES
ANIONS
AQUEOUS SOLUTIONS
COMPARATIVE EVALUATIONS
ION EXCHANGE MATERIALS
NITRIC ACID
RESINS
SEPARATION PROCESSES
CHARGED PARTICLES
DISPERSIONS
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IONS
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SOLUTIONS
TRANSURANIUM ELEMENTS
400105* - Separation Procedures