Published 2003
| Version v1
Journal article
Coprecipitation of transuranium elements from alkaline solutions by the method of appearing reagents. XXI. Coprecipitation of Pu(VI,V) and Np(VI,V) with sodium uranate
- 1. RAN, Inst. Fizicheskoj Khimii, Moscow (Russian Federation)
Description
Conditions of sodium uranate separation in the process of catalytic decomposition of peroxouranium (VI) ion in alkaline solutions are determined. Cu(II) is a catalyst. Capture of Pu(VI,V) and Np(VI,V) by Na2UO4 precipitate is investigated by radiometric method. In the case of NaOH concentration increase in 0.5-8 mol/l range purification coefficient Kd for Pu(VI) and Pu(V) decreases from 600 to 30, and for Np(VI) and Np(V) - from 200 to 10
Abstract (Russian)
Определены условия выделения ураната натрия при каталитическом разложении пероксоурана (VI) в щелочных растворах. Катализатором служила Cu(II). Радиометрическим методом исследован захват осадком Na2UO4 Pu(VI,V) и Np(VI,V). С ростом концентрации NaOH в диапазоне 0.5-8 моль/л коэффициент очистки Kd для Pu(VI) и Pu(V) уменьшается от 600 до 30, для Np(VI) и Np(V) - от 200 до 10Additional details
Additional titles
- Original title (Russian)
- Соосаждение трансурановых элементов из щелочных растворов методом возникающих реагентов. XXI. Соосаждение Пу(VI,В) и Нп(VI,В) с уранатом натрия
Publishing Information
- Journal Title
- Radiokhimiya
- Journal Volume
- 45
- Journal Issue
- 1
- Journal Page Range
- p. 66-69
- ISSN
- 0033-8311
- CODEN
- RADKAU
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 35049826
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- CONCENTRATION RATIO; COPRECIPITATION; DISTRIBUTION FUNCTIONS; NEPTUNIUM COMPOUNDS; PH VALUE; PLUTONIUM COMPOUNDS; SODIUM COMPOUNDS; URANATES; VALENCE
- Descriptors DEC
- ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; FUNCTIONS; PRECIPITATION; SEPARATION PROCESSES; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS
Optional Information
- Notes
- 11 refs.; 4 tabs.; 2 figs.