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Solvent Extraction of Vanadium with α‐Benzoin Oxime
Author(s) -
Li ChinHou,
Chen ShouNan,
Gi HungJang
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000044
Subject(s) - chemistry , vanadium , oxime , benzoin , chloroform , extraction (chemistry) , yield (engineering) , chloride , sulfate , solvent , inorganic chemistry , chromium , nuclear chemistry , chromatography , organic chemistry , metallurgy , materials science
The solvent extraction of vanadium by a chloroform solution of α‐benzoin oxime was investigated. The most favorable condition for the extraction has been found in the pH rang of 1.8 to 3.0 in sulfate or chloride buffer solutions, but with better extraction efficiency when sulfate was used. A solution of 2×10 −2 M α‐benzoin oxime in chloroform was used, and 1×10 −4 to 2×10 −2 M vanadium(V) was extracted favorably in about 89% yield by a single extraction, and in about 97% yield by a double extraction. The effects of shaking time, concentration of α‐benzoin oxime, and diverse ions have also been investigated. Vanadium(V) can be readily extracted without interference in the presence of copper(II), aluminum(III), iron(III), silver(I), zirconium(IV), and chromium(III).