Permeation of iron(III) by an immobilised liquid membrane using Cyanex 923 as mobile carrier

Alguacil, Francisco José; Martínez, Susana

doi:10.1016/s0376-7388(00)00442-7

Cited by 26 publications

(13 citation statements)

References 15 publications

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“…Zinc(II) species in the form of HnZnCl(2+n) were permeated by a solid-SLM from chloride medium using Cyanex 923 [25]. In addition, an FSSLM system has been used to transport HFeCl4 species through a PVDF membrane with the carrier of Cyanex 923 from a solution containing chloride ions [26]. Alguacil, et al [27] investigated the transport of Au(III) in the form HAuCl4 through a PVDF membrane film impregnated in Cyanex 923 from an HCl solution.…”

Section: Introductionmentioning

confidence: 99%

Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

Haghighi¹,

Irannajad²,

Coll³

et al. 2019

Preprint

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A transport process was studied from an aqueous solution containing oxalic acid and 100 mg/L Ge using a flat sheet supported liquid membrane (FSSLM) system. Cyanex 923 immobilized in a polytetrafluoroethylene membrane was employed as a carrier. The solution chemistry and related diagrams were applied to study the transport of germanium. The effectual parameters such as oxalic acid, carrier concentration, and strip reagent composition were evaluated in this study. Based on the results, the oxalic acid concentration of 0.075 mol/L and the carrier concentration of 20 %v/v were the condition in which the efficient germanium transport occurred. Among strip reagents, NaOH (0.04-0.1 mol/L) had the best efficiency to transport germanium through the SLM system. Furthermore, the permeation model was obtained to calculate the mass transfer resistances of the membrane (Δm) and feed (Δf) phases. According to the results, the values of 1 and 1345 s/cm were evaluated for Δm and Δf, respectively.

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Section: Introductionmentioning

confidence: 99%

Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

Haghighi¹,

Irannajad²,

Coll³

et al. 2019

Preprint

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“…The advantages of SLMs are its simplicity and ease of operation [8]. For this, it was suggested for the recovery and the concentration of many metals and selective separations of trace amounts of metal ions [9,10]. The removal of copper (II) ions from aqueous solutions can be achieved by SLM extraction process [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Factorial design in optimization of extraction procedure for copper (II) using Aliquat 336 and Tri-n-butylphosphate based supported liquid membrane

Medjahed

Didi

Villemin

2013

Desalination and Water Treatment

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In the present paper, extraction procedure for copper (II) present in an aqueous sulphate media using a supported liquid membrane by chloride tri-N-octylmethylammonium (Aliquat 336) and Tri-n-butylphosphate from molar ratio 1:1, with polytetrafluoroethylene as a membrane support was studied. The effects of various parameters such as initial pH, potassium thiocyanate concentration and ammonium acetate concentration on the extraction yield, were carried out. By a calculation programme using Chemical Equilibrium in Aquatic System V. L20.1, the determination of the percentages of the present species before and after extraction were given in aqueous medium and on the membrane to be able to determine the relation between the nature of the extracted species and the extraction yield. The optimization process was carried out using 2 3 factorial designs. Initial pH (pH i ) of feed solution, the concentration of potassium thiocyanate and the concentration of ammonium acetate were regarded as factors in the optimization. Student's t-test on the results of the 2 3 factorial design with eight runs for copper (II) extraction demonstrated that the factor concentration of potassium thiocyanate in the levels studied are statistically significant. Under the optimum conditions the percentage of extracted copper (II) was 93.6% in one step.

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“…Despite the three above circumstances: iron (relative) toxicity, presence of iron in liquid effluents and increasing usage of membrane technologies, there is very limited information about the use of liquid membranes for the processing of iron-bearing liquid effluents [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Pseudo-emulsion based hollow fiber with strip dispersion pertraction of iron(III) using (PJMTH+)2(SO42−) ionic liquid as carrier

Alonso

López

López‐Delgado

et al. 2010

Chemical Engineering Journal

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a b s t r a c tThe transport of iron(III) from acidic media using pseudo-emulsion based hollow fiber strip dispersion (PEHFSD) technology is investigated. As a carrier, (PJMTH + ) 2 (SO 4 2− ) ionic liquid, generated by direct reaction of the commercially available primary amine Primene JMT and sulphuric acid, is used. Several hydrodynamic conditions were investigated: concentration of iron (0.01-1 g l −1 ) and sulphuric acid concentration (10 −3 -0.5 M) in the feed phase, carrier concentration (1-30%, v/v) and sulphuric acid concentration (1-3 M) in the organic and strip solutions, of the pseudo-emulsion phase. The values encountered for the membrane and feed resistances, 112 and 1000 s/cm, showed that the contribution of the membrane resistance is negligible, whereas the feed resistance contributes around 17% to the overall resistance value (near 5800 s/cm), thus, the interfacial resistances due to the extraction and stripping reactions appeared dominant. The performance of the system is also compared against other ionic liquids generated from available amine extractants (Primene 81R, Primene TOA, Amberlite LA2 and tridodecylamine) and other hollow fiber configurations.

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Permeation of iron(III) by an immobilised liquid membrane using Cyanex 923 as mobile carrier

Cited by 26 publications

References 15 publications

Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

Non-Dispersive Extraction of Ge(IV) from Aqueous Solutions by Cyanex 923: Transport and Modeling Studies

Factorial design in optimization of extraction procedure for copper (II) using Aliquat 336 and Tri-n-butylphosphate based supported liquid membrane

Pseudo-emulsion based hollow fiber with strip dispersion pertraction of iron(III) using (PJMTH+)2(SO42−) ionic liquid as carrier

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