Liquid-Liquid Extraction of V(IV) from Sulphate Medium by Cyanex 301 Dissolved in Kerosene

Abstract

The equilibrium of extraction of V(IV) in the   2 4

Impact of organic carbon on the leachability of vanadium, manganese, iron and molybdenum from shale residues

“…According to the literature, vanadium can effectively be recovered from solutions similar to those produced by the reactors by using liquid-liquid extraction (cf. Kumar et al, 2010;Biswas and Karmakar, 2013). The extraction of vanadium range from 50% to 100% why this might be the most efficient method to use in order to minimize the environmental impact from leachates generated as in reactor 2.…”

“…Other factors to consider include the specificity for the target element, especially if its concentration is low and a high purity product is desired. For vanadium and molybdenum liquid-liquid extraction is widely used for recovery of the elements from a multitude of different liquid matrices (Zhang et al, 1996;Remya and Reddy, 2004;El-Nadi et al, 2009;Kumar et al, 2010;Biswas and Karmakar, 2013). Unfortunately it is less well explored how the technique works at low concentrations of the target element in relation to other elements.…”

Experimental design modelling for the extraction of vanadium(IV) extraction V(IV)-SO₄ ^2- (H+, Na+)-Cyanex 301-kerosene system

“…Within last two decades the extraction behaviours of V(IV) from sulfuric acid Medium by Cyanex 272 (Zhang, 1995;Zhang et al, 1996), of both V(IV) and V(V) from HCl medium by Cyanex reagents (Saily and Tandon, 1998), of V(IV) from H 2 SO 4 medium by Cyanex 302 (Biswas and Karmakar, 2012) and by Cyanex 301 (Biswas and Karmakar, 2013b) have been reported.…”

“…In this work, the reported data (Biswas and Karmakar, 2013b) have to be used to model the system. The model or equation to be derived will tell us the set of experimental parameters at which the highest percentage of extraction would be obtained.…”

“…Only a model equation will justify all the results given in Ref. (Biswas and Karmakar, 2013b). In order to model vanadium(IV) extraction in V(IV)-SO 4 2-(H + , Na + )-Cyanex 301-Kerosene system, the factorial design using five factors viz., pH (eq) , [V(IV)], [SO 4…”