Published 1980 | Version v1
Report Restricted

Recovery of Am-Cm from high-activity waste concentrate by in-canyon-tank precipitation as oxalates

Creators

Description

Savannah River Laboratory and Savannah River Plant have been separating actinides for more than 25 years. Work continues to upgrade processes and to initiate new processes. This report summarizes work on a precipitation process to separate kg amounts of Am and Cm from hundreds of kilograms of NaNO3 and Al(NO3)3. The developed process includes formic acid denitration of the Am-Cm bearing streams for acid adjustment; oxalate precipitation of the Am-Cm; and Mn+2 catalyzed oxidation of oxalate in both the decanted supernate and the precipitated actinides. The new process generates one fourth the radioactive waste as the solvent extraction process which it replaced, and produces a cleaner feed solution for downstream processing to separate the Am and Cm before conversion to their respective oxides

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.

Files

Restricted

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Additional details

Publishing Information

Imprint Pagination
23 p.
Report number
DP-MS--80-35

Conference

Title
180. American Chemical Society meeting/2. chemical congress of the North American Continent.
Dates
24 - 29 Aug 1980.
Place
Las Vegas, NV, USA.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
11566282
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM NITRATES; AMERICIUM; CURIUM; DENITRATION; FORMIC ACID; OXALATES; OXIDATION; PRECIPITATION; SODIUM NITRATES
Descriptors DEC
ACTINIDES; ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CARBOXYLIC ACID SALTS; CARBOXYLIC ACIDS; CHEMICAL REACTIONS; ELEMENTS; METALS; MONOCARBOXYLIC ACIDS; NITRATES; NITROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SODIUM COMPOUNDS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS

Optional Information

Secondary number(s)
CONF-800814--5.