Extraction of iron(III) from acidic chloride solutions by Cyanex 923

Saji, J.; Rao, T. Prasada; Iyer, C.S.P.; Reddy, M. L. P.

doi:10.1016/s0304-386x(98)00030-9

Cited by 72 publications

(24 citation statements)

References 10 publications

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“…Numerous studies have been performed on the solvent extraction of FeCl 3 with tributyl-phosphate (TBP) owing to its low solubility in water. [1][2][3][4][5] Most experiments on the solvent extraction of FeCl 3 with TBP reported to date have been conducted in the low concentration range of FeCl 3 . However, the range of FeCl 3 concentration used in hydrometallurgical processes is very high.…”

Section: Introductionmentioning

confidence: 99%

Solvent Extraction Equilibria of FeCl<SUB>3</SUB> with TBP

Lee

Sohn

2004

Mater. Trans.

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Solvent extraction equilibria of FeCl 3 with TPB from chloride solutions were analyzed by considering chemical equilibria, extraction reaction, mass and charge balance equations. The activity coefficients of solutes in aqueous phase were calculated by Bromley equation while ideal behavior was assumed for species in organic phase. Extraction reaction of FeCl 3 with TBP in the experimental range of this study was determined from the dependence of the distribution coefficient of iron on the concentration of chloride ions. By applying ionic equilibria to the results of solvent extraction experiments, equilbrium constant of the extraction reaction was estimated to be 4:5 Â 10 2 . The equilibrium concentrations of solutes in both phases after extraction could be calculated with the ionic equilibria developed in this study. The predicted distribution coefficients of iron agreed well with those measured.

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Section: Introductionmentioning

confidence: 99%

Solvent Extraction Equilibria of FeCl<SUB>3</SUB> with TBP

Lee

Sohn

2004

Mater. Trans.

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“…Tertiary amines used as extractant agent in this work may be considered as a mixture of organic amines whose major components are ternary amines with special emphasis on trioctylamines [12]. Saji et al have proposed xylenes and its derivatives as diluents for extractants because of their positive effects on extraction mixing and settling phases.…”

Section: Introductionmentioning

confidence: 99%

Separation of Co(II) from Zinc Plant Acidic Thiocyanate Leach Solutions Containing Co(II) and Ni(II) by Solvent Extraction Using Trioctylamine in Toluene

Eyüpoğlu

Kumbasar

2011

SERDJ

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In this study, a zinc plant purification cake (CINKUR Co. Turkey) was leached with sulphuric acid and an acidic leach solution containing Zn(II), Fe(II), Pb(II), Al(III), Cu(II), Co(II) and Ni(II) ions was obtained. After purification, ammonium thiocyanate and water were added to the remaining leach solution containing Co(II) and Ni(II) ions to adjust the chemical media and ion concentration. The acidic thiocyanate leach solutions were used in solvent extraction experiments. The various parameters were studied to determine the extraction and striping behaviour of Co(II). These parameters were diluent type, feed solution pH, extractant concentration, mixing speed, phase ratio, stripping solution type and concentration and etc. Under optimum extraction conditions, the maximum extraction efficiency (99.9 %) was achieved when using 5.0 %(v/v) TOA in toluene within 5 min. The extracted Co(II) was stripped effectively from the organic phase using 5.0 M NH 3 solution.

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“…The investigation on the solvent extraction of iron (III) mainly focused on separation of iron from blue dust, iron scrap, waste chloride pickle liquors from steel plants and ilmenite leach liquors. A survey of the literature showed that a large number of reagents had been used for the extraction of iron (III), such as organophosphorus acid derivatives [1][2][3][4][5][6][7] , amines [8][9][10][11] , neutral extractants [12][13][14][15] , carboxylic acid etc. Among them, organophosphorus acid extractants and amines are the leading extractants for iron (III) in acid solutions.…”

Section: Introductionmentioning

confidence: 99%

Solvent extraction of iron (III) from chloride acid solutions by decanol

Mao¹

2015

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

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The solvent extraction of iron (III) from acidic chloride solutions by decanol in kerosene has been investigated. The solvent extraction results demonstrated that the dissolved iron was present as HFeCl 4 .2Decanol. Extraction of iron (III) increased with increased hydrochloric acid concentration in the aqueous phase. On the other hand, titanium (IV ) aluminum (III), calcium (II) and magnesium (II) were not extracted under these experimental conditions. IR spectral study of the extracted complex was further used to clarify the nature of the extracted complex. The extracted complex was easy to strip. Using 0, 0.5 and 1 mol.dm -3 HCl as the stripping agents the stripping rate of iron (III) was above 90%.

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Extraction of iron(III) from acidic chloride solutions by Cyanex 923

Cited by 72 publications

References 10 publications

Solvent Extraction Equilibria of FeCl<SUB>3</SUB> with TBP

Solvent Extraction Equilibria of FeCl<SUB>3</SUB> with TBP

Separation of Co(II) from Zinc Plant Acidic Thiocyanate Leach Solutions Containing Co(II) and Ni(II) by Solvent Extraction Using Trioctylamine in Toluene

Solvent extraction of iron (III) from chloride acid solutions by decanol

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