Recovery of Technetium Adsorbed on Charcoal

Journal Article · Mon May 01 00:00:00 EDT 2006 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-006-0154-1· OSTI ID:885448

Engelmann, Mark D. ^[1]; Metz, Lori A. ^[1]; Ballou, Nathan E. ^[1]

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1. BATTELLE (PACIFIC NW LAB)

Two methods capable of near complete recovery of technetium adsorbed on charcoal are presented. The first involves liquid extraction of the technetium from the charcoal by hot 4M nitric acid. An average recovery of 98% (n=3) is obtained after three rounds of extraction. The second method involves dry ashing with air in a quartz combustion tube at 400-450 degrees C. This method yields an average recovery of 96% (n=5). Other thermal methods were attempted, but resulted in reduced recovery and incomplete material balance

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 885448
• Report Number(s): PNNL-SA-46393; NN2001000
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 2 Vol. 268; ISSN JRNCDM; ISSN 0236-5731
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
CHARCOAL
DRY ASHING
MATERIAL BALANCE
MATERIALS RECOVERY
SOLVENT EXTRACTION
TECHNETIUM