Extraction of vanadium(V) by N′,N′ -dialkylhydrazides of carboxylic acids from acidic solutions

Author： Batueva T.   Karmanov V.  

Publisher： MAIK Nauka/Interperiodica

ISSN： 0036-0236

Source： Russian Journal of Inorganic Chemistry, Vol.56, Iss.6, 2011-06, pp. : 986-990

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Extraction of vanadium(V) with solutions of 2-ethylhexanoic acid N′,N′-dialkylhydrazides in kerosene from acidic media was studied. The optimal extraction conditions were determined depending on the concentrations of H2SO2, HCl, and the extraction agent; the composition of the recovered complexes was proposed. The conditions for back-extraction of vanadium(V) from the organic phase were studied. It was found that benzoic acid N′,N′-diheptylhydrazide did not recover vanadium(V) from acidic media.

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