Published 2002 | Version v1
Journal article Metadata-only

Study of palladium extraction from nitric acid solutions by nitrogen-containing compounds as applied to fission-produced palladium extraction from NPP spent nuclear fuel. Communication 2. Radiation effect on palladium extraction and the state of extraction systems

Creators

  • 1. GNTs RF VNII Neorganicheskikh Materialov im. akad. A.A. Bochvara, Moscow (Russian Federation)

Description

Extraction of palladium nitratocomplexes from 1-3 mol/l HNO3 in diethylbenzene solutions of tri-n.-octylamine and tricaprylmethylammoniumnitrate (Aliquat 336 nitrate) under gamma irradiation (60Co) at a dose up to 100 W h/l was studied using the methods of IR spectroscopy and elementary analysis. Reduction in acidity of aqueous ad organic phase and appearance of HNO2 in irradiated extraction systems was ascertained. It is shown that increase in the dose involves decrease in Pd extraction degree at the expense of partial destruction of organic phase. Effect of radiation on the extraction systems state was discussed

Abstract (Russian)

С использованием методов ИК спектроскопии и элементного анализа изучена экстракция нитратокомплексов палладия из 1-3 моль/л HNO3 в диэтилбензольные растворы три-н.-октиламина и трикаприлметиламмонийнитрата (Aliquat 336 nitrate) под гамма-облучением (60Co) дозой до 100 Вт ч/л. Установлено снижение кислотности водной и органической фаз и появление HNO2 в облученных экстракционных системах. Показано, что с увеличением дозы степень извлечения Pd снижается за счет частичной деструкции органической фазы. Обсуждается воздействие радиации на соснояние экстракционных систем

Additional details

Additional titles

Original title (Russian)
Исследование экстракции палладия из азотнокислых растворов азотсодержащими соединениями применительно к извлечению осколочного палладия из отработанного ядерного топлива АЭС. 2. Влияние радиации на извлечение палладия и состояние экстракционных систем

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
44
Journal Issue
2
Journal Page Range
p. 131-135
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34067463
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
AQUEOUS SOLUTIONS; CHEMICAL RADIATION EFFECTS; COBALT 60; DISTRIBUTION FUNCTIONS; GAMMA RADIATION; INFRARED SPECTRA; NITRATES; NITRIC ACID; PALLADIUM COMPLEXES; QUATERNARY COMPOUNDS; RADIATION DOSES; REPROCESSING; SOLVENT EXTRACTION; TOA
Descriptors DEC
AMINES; AMMONIUM COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHELATING AGENTS; COBALT ISOTOPES; COMPLEXES; DISPERSIONS; DOSES; ELECTROMAGNETIC RADIATION; EXTRACTION; FUNCTIONS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; MIXTURES; NITROGEN COMPOUNDS; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; SEPARATION PROCESSES; SOLUTIONS; SPECTRA; TRANSITION ELEMENT COMPLEXES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
12 refs.; 5 tabs.; 6 figs.