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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2980
Title: Cyphos IL 102 assisted liquid-liquid extraction studies and recovery of vanadium from spent catalyst
Authors: Singh R.
Mahandra H.
Gupta B.
Published in: Minerals Engineering
Abstract: In this study, Cyphos IL 102 (trihexyl(tetradecyl)phosphonium bromide) diluted in toluene has been explored as an organic phase for the extraction, separation and recovery of V(V) from sulphate medium. The influence of different fundamental extraction variables namely acids and extractant concentration, equilibration time and temperature on the V(V) extraction has been evaluated. Different stripping agents have been studied for back extraction of vanadium. Saturation and recycling capacity of the extractant has also been performed. Partition behavior of other associated metal ions namely Mn(II), Fe(II/III), Al(III), Cr(III), Ti(IV), Mo(VI) and W(VI) were carried out. The extraction data offer conditions for the binary separation of V(V) from associated metal ions with high separation factors. Optimized parameters have been employed for the extraction and recovery of V(V) from spent V2O5 catalyst leach liquor. To find out the number of stages required to achieve quantitative extraction/stripping of vanadium, McCabe-Thiele plots were drawn, which were further verified by counter current simulation studies. In addition, vanadium oxide was synthesised using thermal decomposition and characterized by XRD, FESEM and EDX techniques. © 2018
Citation: Minerals Engineering (2018), 128(): 324-333
URI: https://doi.org/10.1016/j.mineng.2018.09.003
http://repository.iitr.ac.in/handle/123456789/2980
Issue Date: 2018
Publisher: Elsevier Ltd
Keywords: Cyphos IL 102
Extraction
Recovery
Spent V2O5 catalyst
Vanadium
ISSN: 8926875
Author Scopus IDs: 55496956600
56193939400
7402195167
Author Affiliations: Singh, R., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Mahandra, H., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Gupta, B., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Funding Details: The authors would like to thank Cytec industries Inc., Netherlands, for supplying Cyphos IL 102. Rashmi Singh thanks CSIR (Grant No. 09/143(0830)/2013-EMR-I ), India for research fellowship.
Corresponding Author: Gupta, B.; Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology RoorkeeIndia; email: dr.binagupta@gmail.com
Appears in Collections:Journal Publications [CY]

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