Published 2000 | Version v1
Journal article Metadata-only

Extraction of rare earth metals (3) from aqueous solutions containing thorium and uranyl nitrates

Creators

  • 1. Sankt-Peterburgskij Gosudarstvennyj Tekhnologicheskij Inst., Sankt-Peterburg (Russian Federation)

Description

Isotherms of extraction of rare earth metals (3) from aqueous solutions containing thorium and uranyl nitrates by solutions of tributylphosphate (TBP) and diisooctylmethylphosphonate (DIOMP) in kerosene at 298.15 Deg C and pH 1 are presented. Equations for description of interphase distribution of components of the systems considered are suggested. These equations describe distribution of components adequately in the systems of thorium nitrate (uranyl nitrate) - rare earth nitrates - (TBP, DIOMP) in the case of wide variation of phase compositions. Dependences of separation factors on composition of aqueous phase are considered

Abstract (Russian)

Приведены изотермы экстракции нитратов редкоземельных металлов (3) из водных растворов, содержащих нитраты тория и уранила, растворами трибутилфосфата (ТБФ) и диизооктилметилфосфоната (ДИОМФ) в керосине при 298.15 град C и pH 1. Предложены уравнения для описания межфазного распределения компонентов рассмотренных систем. Эти уравнения адекватно описывают распределение компонентов в сисметах нитрат тория (нитрат уранила) - нитраты редкоземельных металлов - (ТБФ, ДИОМФ) при широкой вариации состава фаз. Рассмотрены зависимости коэффициентов разделения от состава водной фазы

Additional details

Additional titles

Original title (Russian)
Экстракция редкоземельных металлов (3) из водных растворов, содержащих нитраты тория и уранила

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
42
Journal Issue
2
Journal Page Range
p. 128-130
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32008736
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AQUEOUS SOLUTIONS; CHEMICAL COMPOSITION; CONCENTRATION RATIO; DISTRIBUTION FUNCTIONS; KEROSENE; NITRATES; PH VALUE; RARE EARTH COMPOUNDS; SOLVENT EXTRACTION; TBP; TEMPERATURE RANGE 0273-0400 K; THORIUM NITRATES; URANYL NITRATES
Descriptors DEC
ACTINIDE COMPOUNDS; BUTYL PHOSPHATES; DISPERSIONS; DISTILLATES; ENERGY SOURCES; ESTERS; EXTRACTION; FOSSIL FUELS; FUELS; FUNCTIONS; GAS OILS; HOMOGENEOUS MIXTURES; LIQUID FUELS; MIXTURES; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PETROLEUM; PETROLEUM DISTILLATES; PETROLEUM FRACTIONS; PETROLEUM PRODUCTS; PHOSPHORIC ACID ESTERS; SEPARATION PROCESSES; SOLUTIONS; TEMPERATURE RANGE; THORIUM COMPOUNDS; URANIUM COMPOUNDS; URANYL COMPOUNDS

Optional Information

Notes
7 refs., 4 figs.