Journal
RARE METALS
Volume 28, Issue 3, Pages 209-211Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-009-0041-3
Keywords
solvent extraction; vanadium(V); Cyanex 923; sulfuric acid solution
Funding
- Science Foundation of Central South University [76112037]
- Postdoctoral Science Foundation of Central South University
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The behaviour of vanadium(V) extracted from sulfuric acid solution was investigated using Cyanex 923 as an extractant. The effects of the concentration of Cyanex 923 and the pH of the solution were studied. The extraction of vanadium(V) increases with the increase of Cyanex 923 concentration and shaking time. Cyanex 923 can extract vanadium(V) from sulfuric acid solution at low pH conditions, and the best pH conditions for extraction of vanadium(V) are at pH 1.0-2.0. The species extracted into the organic phase is VO2HSO4 with one molecule of Cyanex 923. Equilibrium studies were used to assess the extraction efficiency of vanadium(V) recovery from the sulfuric acid solution.
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