Chemical burnup determination based on spectrophotometric measurement of total rare earth fission products, uranium, and plutonium

Technical Report · Wed Oct 01 04:00:00 EDT 1975

DOI:https://doi.org/10.2172/7286820· OSTI ID:7286820

Marsh, S F; Ortiz, M R; Rein, J E

A chemical burnup procedure incorporates the ion-exchange separation of uranium, plutonium, and total rare earth fission products (as the fission monitor) followed by the spectrophotometric determination of each. The separation involves retaining uranyl and plutonyl chloride complexes on a macroporous anion exchange column from 12 M HCl, whereas the rare earths and most fission products pass through. Subsequently, plutonium is eluted with 0.1 M HI-12 M HCl and uranium with 0.1 M HCl. From the initial effluent of the first column, the rare earth group is separated on a second column of either (1) macroporous anion exchange resin from HNO/sub 3/-CH/sub 3/OH, or (2) pellicular cation exchange particles from HCl-C/sub 2/H/sub 5/OH. The HNO/sub 3/--CH/sub 3/OH system normally is used to separate the rare earth group from fuel cladding elements and other fission products. The HCl--C/sub 2/H/sub 5/OH system additionally separates the rare earth group from americium. Arsenazo III is the chromogenic agent for the spectrophotometric determination of the separated uranium, plutonium, and rare earth fractions.

• Research Organization: Los Alamos Scientific Lab., N.Mex. (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7286820
• Report Number(s): LA-6147
• Country of Publication: United States
• Language: English

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ACTINIDES
ALCOHOLS
AROMATICS
ARSENAZO
ARSENIC COMPOUNDS
ARSONIC ACIDS
AZO COMPOUNDS
BURNUP
CHEMICAL ANALYSIS
ELEMENTS
ENERGY SOURCES
ETHANOL
FISSION PRODUCTS
FUELS
HALOGEN COMPOUNDS
HYDRIODIC ACID
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
IODINE COMPOUNDS
ION EXCHANGE
ISOTOPES
METALS
METHANOL
NUCLEAR FUELS
ORGANIC ACIDS
ORGANIC ARSENIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENOLS
PLUTONIUM
POLYPHENOLS
RADIOACTIVE MATERIALS
RARE EARTHS
REACTOR MATERIALS
REAGENTS
SPECTROPHOTOMETRY
SULFONIC ACIDS
TRANSURANIUM ELEMENTS
URANIUM