Automated homogeneous oxalate precipitation of Pu(III)

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6662483

Yarbro, S L; Schreiber, S B; Dunn, S L; Mills, C W

Homogeneous oxalate precipitation using diethyl oxalate was compared to precipitating Pu(III) oxalate with solid oxalic acid. The diethyl oxalate technique at 75{degree}C is better because it gives 50% less plutonium in the filtrate with a reasonable filtering time. Also, the procedure for the homogeneous precipitation is easier to automate because the liquid diethyl oxalate is simpler to introduce into the precipitator than solid oxalic acid. It also provides flexibility because the hydrolysis rate and therefore the precipitation rate can be controlled by varying the temperature. 5 refs., 3 figs., 3 tabs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6662483
• Report Number(s): LA-UR-90-2566; CONF-900802-4; ON: DE90015059; TRN: 90-028971
• Resource Relation: Conference: 200. American Chemical Society national meeting, Washington, DC (USA), 26-31 Aug 1990
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
PLUTONIUM
PRECIPITATION
CHEMICAL REACTION KINETICS
COMPARATIVE EVALUATIONS
FILTRATION
HYDROLYSIS
LIQUIDS
OXALATES
SOLIDS
TEMPERATURE EFFECTS
ACTINIDES
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
FLUIDS
KINETICS
LYSIS
METALS
REACTION KINETICS
SEPARATION PROCESSES
SOLVOLYSIS
TRANSURANIUM ELEMENTS
052001* - Nuclear Fuels- Waste Processing