Published January 1984 | Version v1
Journal article Metadata-only

Laboratory studies of extracting americium concentrate from PUREX waste solutions

Creators

  • 1. Zentralinstitut fuer Kernforschung, Rossendorf bei Dresden (German Democratic Republic)

Description

From the results of distribution measurements a process has been derived for recovering Am concentrate from PUREX waste solutions. The process consists of the following stages: 1. Feed solution preparation 2. extraction of a lanthanoide-actinoide fraction with the aid of 50 % TBP magnesium nitrate, and 3. reextraction of Am concentrate with DTPA as complexing agent. It has been tested on a laboratory scale, using a simulated waste solution at a flow rate of 1 l/h. The achieved lanthanoide/actinoide separation is suitable for subsequent chromatographic final separation. The influence of radiolytic degradation has also been studied. (author)

Additional details

Additional titles

Original title (German)
Laboruntersuchungen zur Gewinnung eines Americiumkonzentrates aus PUREX-Raffinatloesung

Publishing Information

Journal Title
Isotopenpraxis
Journal Volume
20
Journal Issue
1
Series
Isotopenpraxis.
Journal Page Range
19-23
ISSN
0021-1915

INIS

Country of Publication
Germany
Country of Input or Organization
German Democratic Republic
INIS RN
15020570
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ACTINIDE COMPLEXES; AMERICIUM COMPLEXES; DTPA; LIQUID WASTES; MAGNESIUM NITRATES; MIXER-SETTLERS; PUREX PROCESS; RADIOLYSIS; RARE EARTH COMPLEXES; SOLVENT EXTRACTION; TBP; WASTE PROCESSING; WASTE PRODUCT UTILIZATION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AMINO ACIDS; BUTYL PHOSPHATES; CARBOXYLIC ACIDS; CHELATING AGENTS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; COMPLEXES; DECOMPOSITION; ESTERS; EXTRACTION APPARATUSES; MAGNESIUM COMPOUNDS; MANAGEMENT; NITRATES; NITROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; RADIATION EFFECTS; REPROCESSING; SEPARATION PROCESSES; TRANSURANIUM COMPLEXES; WASTE MANAGEMENT; WASTES