Solvent extraction of Pr and Nd from chloride solution by the mixtures of Cyanex 272 and amine extractants

Solvent extraction of Pr and Nd from chloride solutions using ternary extractant system of Cyanex 272, Alamine 336 and TBP

“…It can be said that TBP does not participate in the extraction of metals by using the mixture of Cyanex 272 and TBP. The solvent extraction of Pr and Nd by the mixture of Cyanex 272 and Alamine 336 has been studied earlier [26]. The addition of Alamine 336 into Cyanex 272 enhanced the extraction of Pr and Nd (Fig.…”

“…Extraction of Pr and Nd by ternary extractant system containing Cyanex 272, Alamine 336 and TBP In our previous work, the extraction reaction of Pr and Nd from chloride medium with the mixture of Cyanex 272 (H 2 A 2 ) and Alamine 336 (R 3 N) has been proposed as [26]:…”

“…During the recovery of REEs from the leach liquor of monazite sand at Korea, the chloride solution containing Pr-1.17 g/ L (0.008 M) and Nd-3.28 g/L (0.023 M) was obtained after recovery of Ce and La by precipitation and solvent extraction, respectively [25]. In our previous work on the extraction and separation of Pr and Nd from this chloride solution [26], we have reported that the mixture of Cyanex 272 and Alamine 336 (tri-octyl/decylamine) or TOA (trioctylamine) showed a synergistic effect on the extraction of Pr and Nd. The synergistic extraction was ascribed to the Pr Nd Ternary system Cyanex 272 Alamine 336 TBP A B S T R A C T Synergistic extraction and separation of Pr and Nd in chloride medium using a ternary mixture containing Cyanex 272, Alamine 336 and TBP has been investigated.…”

Stoichiometry of Cu(II) Ion Extraction with di-2-ethylhexylphosphoric acid Dissolved in Waste Palm Cooking Oil

“…Many methods are available to determine the reaction stoichiometry, such as slope analysis (Liu et al, 2014), loading capacity and loading test (Talebi et al, 2015), continuous variation method (Job's method) (Baba et al, 2012), ligand number method (Rydberg et al, 2004), numerical method (Chang et al, 2011), volumetric method (Pisarello et al, 2010) and infrared spectroscopy (Bidari et al, 2014). Out of those prominent methods, slope analysis, loading test and Job's method which consists of an experimental approach.…”

“…These methods are the most 779 preferred methods used by numerous researchers (Baba et al, 2012;Ohto et al, 2006;Talebi et al, 2015). Slope analysis is a measurement of the variation of the distribution coefficient for a component at a time (Liu et al, 2014;Rydberg et al, 2004). On the other hand, the loading test is the measurement of the maximum capacity of complexation and decomplexation of the reaction (Baba et al, 2012;Talebi et al, 2015) while Job's method is used to measure the amount of product obtained in a solution that contains the same amount of components, but at a different ratio (Renny et al, 2013).…”