Published 2003 | Version v1
Journal article Metadata-only

On the feasibility of Am(III) separation from Pu(IV) in their coprecipitation as oxalates

Creators

  • 1. NANU, Mezhotraslevoj Nauchno-Tekhnicheskij Tsentr Ukrytie, Chernobyl' (Ukraine)
  • 2. NPO Radievyj Inst. im. V.G. Khlopina, Sankt-Peterburg (Russian Federation)

Description

A procedure was developed for purification of plutonium to remove americium by oxalate precipitation using diethyl oxalate as a precipitant. The developed procedure was tested under laboratory conditions and on an enlarged installation. It was shown that decontamination factor of plutonium in reference to americium can exceed 2 x 10-3. Plutonium oxalate precipitate can be dissolved by heating with HNO3 in the presence of vanadium(V) catalyst and also by electrochemical dissolution using alternating current

Abstract (Russian)

Разработан метод очистки плутония от америция в процессе оксалатного осаждения с применением в качестве осадителя диэтилоксалата. Произведена проверка разработанного метода в лабораторных условиях и на укрупненной установке. Показано, что коэффициент очистки плутония от америция может достигать величин 2 x 10-3 и более. Для растворения осадка оксалата плутония успешно применена каталитическая разварка с соединениями ванадия(V) в качестве катализатора, а также электрохимическое растворение с применением переменного тока

Additional details

Additional titles

Original title (Russian)
O vozmozhnosti razdeleniya Am(III) i Pu(IV) pri ikh sovmestnom oksalatnom osazhdenii

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
45
Journal Issue
2
Journal Page Range
p. 145-151
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
36055182
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AMERICIUM COMPOUNDS; AQUEOUS SOLUTIONS; BENCH-SCALE EXPERIMENTS; CONCENTRATION RATIO; COPRECIPITATION; DISSOLUTION; DISTRIBUTION FUNCTIONS; MULTI-ELEMENT SEPARATION; NITRIC ACID; OXALATES; OXALIC ACID ESTERS; PLUTONIUM COMPOUNDS; PURIFICATION
Descriptors DEC
ACTINIDE COMPOUNDS; CARBOXYLIC ACID ESTERS; CARBOXYLIC ACID SALTS; DISPERSIONS; ESTERS; FUNCTIONS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MIXTURES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PRECIPITATION; SEPARATION PROCESSES; SOLUTIONS; TRANSPLUTONIUM COMPOUNDS; TRANSURANIUM COMPOUNDS

Optional Information

Notes
4 refs.; 5 tabs.; 4 figs.