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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 24 | Page No.: 4028-4031
DOI: 10.3923/jas.2007.4028.4031
Solvent Extraction of Vanadium from Nigerian Bitumen Using Tri-Butylphosphate
I.I. Oguntimehin and K.O. Ipinmoroti

The equilibrium extraction of vanadium (V) from bitumen in Nigeria was carried out with Tributyl Phosphate (TBP) in nitric acid medium in pH range of 1.00-3.50. The extraction concentration was in the range 15-60% TBP in n-hexane and in temperature range of 27 to 50°C. The initial aqueous vanadium (V) concentration varied between 1x10-4 and 1x10-3 M. The extraction of the vanadium was most favorable at pH 2.8, 41.5°C (≈ 315K) and 7.8x10-4 M concentration of aqueous vanadium. However, increased concentration of the extractant beyond 40% did not favour the extraction of vanadium. The bitumen samples from Agbabu and Igbokoda analyzed contained 44.64±1.8x10-1 and 31.58±2.3x10-1 mg kg-1 of vanadium, respectively.
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How to cite this article:

I.I. Oguntimehin and K.O. Ipinmoroti, 2007. Solvent Extraction of Vanadium from Nigerian Bitumen Using Tri-Butylphosphate. Journal of Applied Sciences, 7: 4028-4031.

DOI: 10.3923/jas.2007.4028.4031






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