Separation of Am-Cm from NaNO/sub 3/ waste solutions by in-canyon-tank precipitation as oxalates
A process for the purification of Am-Cm residues was developed specifically for application in Savannah River Plant (SRP) canyon tanks. These Am-Cm residues were collected from several campaigns to produce plutonium containing high isotopic concentrations of /sup 240/Pu. An initial purification from Al/sup 3 +/ had already been accomplished by a solvent extraction process. The product of this process was contaminated with NaNO/sub 3/ as a result of entrainment of the solvent extraction NaNO/sub 3/ scrub solution. To produce an acceptable feed solution for a later pressurized cation exchange chromatography separation and purification step, the bulk of the NaNO/sub 3/ must be removed. This purification process includes formic acid denitration, adjustment of contaminating cations by evaporation and water dilution, and oxalate precipitation of the actinides and lanthanides.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
- DOE Contract Number:
- AC09-87SR00001
- OSTI ID:
- 6040267
- Report Number(s):
- DP-1539; ON: DE82001327; TRN: 82-000188
- Country of Publication:
- United States
- Language:
- English
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Recovery of Am-Cm from high-activity waste concentrate by in-canyon-tank precipitation as oxalates
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM
PRECIPITATION
CERIUM
DENITRATION
FLOWSHEETS
FORMIC ACID
OXALATES
RESIDUES
SODIUM NITRATES
ACTINIDES
ALKALI METAL COMPOUNDS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DIAGRAMS
ELEMENTS
METALS
MONOCARBOXYLIC ACIDS
NITRATES
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RARE EARTHS
SEPARATION PROCESSES
SODIUM COMPOUNDS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
052001* - Nuclear Fuels- Waste Processing
400105 - Separation Procedures