Article info.

ABSTRACT

Received 01 Feb 2018
Revised 18 Apr 2018

Accepted 30 Nov 2018

Extraction behavior of vanadium (V(V)) from the acidic sulfate solutions was investigated using trioctylamine (TOA). The extraction efficiency of V(V) from the acidic sulfate solutions increased with an increase in pH value, extractant concentration and organic to aqueous phase ratio. The optimum condition for V(V) extraction from the acidic sulfate solutions containing 100 mg/L V(V) was found to be at pH 2.5 using 0.005 M TOA. The V(V) from the loaded TOA was completely stripped by the use of 0.5 M NaOH solution. The regeneration of TOA after stripping process was obtained by washing with distilled water, and the recycling capacity of regenerated TOA had no appreciable change.

Keywords

Regeneration, solvent extraction, sulfate solution, trioctylamine, vanadium

Cited as: Hong, N.T., Hau, H.H. and Giao, T.N.Q., 2018. Study on extraction behavior of vanadium from acidic sulfate solutions. Can Tho University Journal of Science. 54(8): 81-87.