Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Abstract

A mathematical model for the transport of Ce(IV) from hydrochloric acid solutions through dispersion flat combined liquid membrane (DFCLM) with contain 2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester (P507) as the carrier, dissolved in kerosene as the membrane solution have been studied. This process of facilitated transport, based on membrane technology, is a variation on the conventional technique of solvent extraction and may be described mathematically using Fick’s second law. The equations for transport velocity are derived considering the diffusion of P507 and its metallic complexes through the liquid membrane. In this work, the system is considered to be in a transient state, and chemical reaction between Ce(IV) and the carrier to take place only at the solvent–aqueous interfaces. Model concentration profiles are obtained for the Ce(IV), from which extraction velocities are predicted. The experimental and simulated Ce(IV) extractions showed similar tendencies for a high Ce(IV) concentration and acidity case.The model results indicate that high initial Ce(IV) concentrations and acidity both have detrimental effects on Ce(IV) extraction and stripping. The diffusion coefficient of Ce(IV) in the membrane and the thickness of diffusion layer between feed phase and membrane phase are obtained and the values are 6.31 × 10^-8 m²·s^-1 and 31.2 μm, respectively. The results are in good agreement with experimental results.

Keywords

Dispersion flat combined liquid membrane (DFCLM) / dispersion phase / feed phase / 2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester / Ce (IV)

References

[1] ChmielewskiA G, UrbańskiT S, MigdalW. Separation technologies for metals recovery from industrial wastes. Hydrometallurgy, 1997, 45(3): 333–344

[2] PeiL, YaoB H, ZhangC J. Transport of Tm(III) through dispersion supported liquid membrane containing PC-88A in kerosene as the carrier. Separation and Purification Technology, 2009, 65(2): 220–227

[3] ValenzuelaF, FonsecaC, BasualtoC, CorreaO, TapiaC, SapagJ. Removal of copper ions from a waste water by a liquid emulsion membrane method. Minerals Engineering, 2005, 18(1): 33–40

[4] BhattacharyyaA, MohapatraP K, AnsariS A, RautD R, ManchandaV K. Separation of trivalent actinides from lanthanides using hollow fiber supported liquid membrane containing Cyanex-301 as the carrier. Journal of Membrane Science, 2008, 312(1–2): 1–5

[5] YangA J, GuZ M, WangD X. Extraction and separation of scandium from rare earths by electrostatic pseudo liquid membrane. Journal of Membrane Science, 1995, 106(1–2): 131–145

[6] ChitraK R, GaikwadA G, SurenderG D, DamodaranA D. Studies on ion transport of some rare earth elements through solvating extractants immobilised on supported liquid membrane. Journal of Membrane Science, 1997, 125(2): 257–268

[7] LiuX R, ZhangX J. Simplified model for extraction of rare-earth ions using emulsion liquid membrane. Journal of Membrane Science, 1997, 128(2): 223–229

[8] KakoiT, OshimaT, NishiyoriT, KubotaF, GotoM, ShinkaiS, NakashioF. Effect of sodium ions on the extraction of rare earth metals by liquid surfactant membranes containing a calix[4]arene carboxyl derivative. Journal of Membrane Science, 1998, 143(1–2): 125–135

[9] YangX J, GuZ M, FaneA G. Multicomponent separation by a combined extraction/electrostatic pseudo-liquid membrane (II): extraction and group separation of rare earths from simulated rare earth ore leach solutions. Hydrometallurgy, 1999, 53(1): 19–29

[10] LiN N, CahnR P, NadenD, LaiR W M. Liquid membrane processes for copper extraction. Hydrometallurgy, 1983, 9(3): 277–305

[11] MartinT P, DaviesG A. The extraction of copper from dilute aqueous solutions using a liquid membrane process. Hydrometallurgy, 1977, 2(4): 315–334

[12] HochhäuserE, SchönfeldE. Eine präzisionsmesseinrichtung zum vergleich der quellstärke von neutronenquellen. Nuclear Instruments and Methods, 1970, 80(2): 347–350

[13] VölkelW, HalwachsW, SchügerlK. Copper extraction by means of a liquid surfactant membrane process. Journal of Membrane Science, 1980, 6(1): 19–31

[14] GladekL, StemaszekJ, SzustJ. Modeling of mass transport with a very fast reaction through liquid membranes. Journal of Membrane Science, 1982, 12(2): 153–167

[15] SmithD R, OwensP R, LeytemA B, WarnemuendeE A. Nutrient losses from manure and fertilizer applications as impacted by time to first runoff event. Environmental Pollution, 2007, 147(1): 131–137

[16] DonaldsonT L, CulbersonO L. An industry model of commodity chemicals from renewable resources. Energy, 1984, 9(8): 693–707

[17] KreuzerF. Facilitated diffusion of oxygen and its possible significance: a review. Respiration Physiology, 1970, 9(1): 1–30

[18] NobleR D. Polymeric gas separation membranes: by R. E. Kesting and K. Fritzsche. Polymeric Gas Separation Membranes, 1994, 49(22): 3833–3834

[19] ElkamelA, NobleR D. A statistical mechanics approach to the separation of methane and nitrogen using capillary condensation in a microporous membrane. Journal of Membrane Science, 1992, 65(1–2): 163–172

[20] KubotaF, GotoM, NakashioF. Extraction of earth metals with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester in the presence of diethylenetriaminepentaacetic acid in aqueous phase. Solvent Extraction and Ion Exchange, 1993, 11(3): 437–453

[21] ChoiK S, LeeC H, KimJ G, KimW H, KangJ G. Separating Ag, B, Cd, Dy, Eu, and Sm in a Gd matrix using 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester extraction chromatography for ICP-AES analysis. Talanta, 2007, 71(2): 662–667

[22] BukhariN, ChaudryM A, MazharM. Triethanolamine-cyclohexanone supported liquid membranes study for extraction and removal of nickel ions from nickel plating wastes. Journal of Membrane Science, 2006, 283(1–2): 182–189

[23] GegaJ, WalkowiakW, GajdaB. Separation of Co(II) and Ni(II) ions by supported and hybrid liquid membranes. Separation and Purification Technology, 2001, 22–23(1–2): 551–558

[24] DanesiP R, HorwitzE P, VandegriftG F, ChiariziaR. Mass transfer rate through liquid membrane:interfacial chemical reactions and diffusion as simultaneous permeability controlling factors. Separation Science and Technology, 1981, 16(2): 201–214

[25] PeiL, WangL M. Study on supported combined liquid membrane containing HEH(EH)P and HNO₃ for trivalent gadolinium transfer. Chinese Chemical Letters, 2011, 22(9): 1095–1098

[26] ParhiP K, SarangiK. Separation of copper, zinc, cobalt and nickel ions by supported liquid membrane technique using LIX 84I, TOPS-99 and Cyanex 272. Separation and Purification Technology, 2008, 59(2): 169–174

[27] HoffmanK A, WallerS L, YoungsC R. Once daily versus twice daily treatments with follicle stimulating hormone in ewes synchronized with different doses of norgestomet. Theriogenology, 1988, 29(1): 261–262

[28] YaftianM R, BurgardM, DielemanC B, MattD. Rare-earth metal-ion separation using a supported liquid membrane mediated by a narrow rim phosphorylated calix(IV) arene. Journal of Membrane Science, 1998, 144(1–2): 57–64

[29] JyothiA, RaoG N. Solvent extraction behaviour of lanthanum(III), cerium(III), europium(III), thorium(IV) and uranium(VI) with 3-phenyl-4-benzoyl-5-isoxazolone. Talanta, 1990, 37(4): 431–433

[30] KandahM I, MeunierJ L. Removal of nickel ions from water by multi-walled carbon nanotubes. Journal of Hazardous Materials, 2007, 146(1–2): 283–288

[31] PeiL, WangL M, GuoW, ZhaoN. Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium. Journal of Membrane Science, 2011, 378(1–2):520–530

Acknowledgements

This research was supported by the National Natural Science Foundation of China for Young Scientists (Grant No. 51109197), the Fundation for Planning project of West Action of Chinese Academy of Sciences (KZCX2-XB2-13) and Research Fund for Excellent Doctoral Thesis of Xi’an University of Technology (602-210805).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg