Published April 2004 | Version v1
Journal article Metadata-only

On the mechanism of vanadium(V) extraction from sulfuric acid solutions with di-2-ethylhexyl-phosphoric acid

Creators

  • 1. Inst. Khimii Tverdogo Tela UrO RAN, Ekaterinburg (Russian Federation)

Description

The mechanism of vanadium (V) extraction from the sulfuric acid concentrated solutions (1.0-16.8 mole/l) with the di-2-ethylhexyl-phosphoric acid (D2EHPA) is studied through the IR and electron spectroscopy methods. It is established , that the above extraction proceeds by the cation-exchange mechanism with formation in the organic phase of the mixed-ligand complexes of the oxovanadium (V) dimer cation with the sulfuric acid and D2EHPA ions. The optimal condition of the vanadium (V) extraction are determined on the basis of the obtained data on its state

Abstract (Russian)

Методами ИК и электронной спектроскопии изучен механизм экстракции ванад (V) ди-2-этил-гексилфосфорной кислотой (Д2ЭГФК) из концентрированных растворов серной кислоты (1.0-16.8 моль/л). Установлено, что экстракция протекает по катионообменному механизму с образованием в органической фазе смешаннолигандных комплексов димерного катиона оксованадия (V) анионами серной кислоты и Д2ЭГФК. На основе полученных данных о состоянии ванад (V) определены оптимальные условия его экстракции

Additional details

Additional titles

Original title (Russian)
О механизме экстракции ванадия(В) из сернокислых растворов ди-2-этилгексилфосфорной кислотой

Publishing Information

Journal Title
Zhurnal Prikladnoj Khimii
Journal Volume
77
Journal Issue
4
Journal Page Range
p. 680-682
ISSN
0044-4618
CODEN
ZPKHAB

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
36110770
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; CHEMICAL STATE; CONCENTRATION RATIO; COORDINATION VALENCES; HDEHP; INFRARED SPECTRA; SOLVENT EXTRACTION; SULFURIC ACID; VANADIUM COMPLEXES; VISIBLE SPECTRA
Descriptors DEC
COMPLEXES; DISPERSIONS; ESTERS; EXTRACTION; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; REACTION KINETICS; SEPARATION PROCESSES; SOLUTIONS; SPECTRA; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPLEXES; VALENCE

Optional Information

Notes
10 refs., 3 figs., 1 tab.