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Статья
2018

Electrodialysis Extraction and Electrodeposition of Lead(II) in Systems with Liquid Membranes


T. Zh. SadyrbaevaT. Zh. Sadyrbaeva
Российский электрохимический журнал
https://doi.org/10.1134/S1023193518130396
Abstract / Full Text

The extraction of lead(II) ions from nitric acid solutions through liquid membranes under galvanostatic electrodialysis with metal electrodeposition from the receiving solution of perchloric, nitric, or acetic acids is studied. The solitons of di(2-ethylhexyl)phosphoric acid with additives of tri-n-octylamine in 1,2-dichloroethane are used as liquid membranes. The effect of the current density of the electrodialysis and the composition of the initial aqueous solution and receiving solution (catholyte), as well as the composition of liquid membranes on the rate of membrane transport and electrodeposition of the lead(II) ions, is investigated. The optimal conditions of the process are determined. Fine-grained and highly adherent lead deposits are obtained on a platinum cathode during the deposition from perchloric acid solutions. It is shown that the degree of extraction of lead(II) ions from the initial aqueous solution is higher than 90% in the process, while the degree of electrodeposition amounts to 60% within 5 h of electrodialysis.

Author information
  • Institute of Inorganic Chemistry, Riga Technical University, Riga, 350040, LatviaT. Zh. Sadyrbaeva
References
  1. Polyanskii, N.G., Svinets (Lead), Moscow: Nauka, 1986.
  2. Vrednye veshchestva v promyshlennosti. Spravochnik dlya khimikov, inzhenerov i vrachei. Tom 3. Neorganicheskie i elementoorganicheskie soedineniya (Harmful Substances in Industry: Handbook for Chemists, Engineers, and Physicians, Vol. 3: Inorganic and Elementorganic Compounds), Lazarev, N.V. and Gadaskina, I.D., Eds., Leningrad: Khimiya, 1977.
  3. Arbabi, M., Hemati, S., and Amiri, M., Removal of lead ions from industrial wastewater: A review of removal methods, Int. J. Epidemiol. Res., 2015, vol. 2, no. 2, p. 105.
  4. Ivakhno, S.Yu. and Yurtov, E.V., Membrannaya ekstraktsiya (Membrane Extraction), Moscow: Vseross. Inst. Nauchn. Tekh. Inf., 1990.
  5. Purin, B.A., Electrochemical extraction of pure metals and their compounds, Izv. Akad. Nauk LatvSSR, 1971, no. 5 (286), p. 31.
  6. Yagodin, G.A., Kagan, S.Z., Tarasov, V.V., et al., Osnovy zhidkostnoi ekstraktsii (Fundamentals of Liquid-Liquid Extraction), Moscow: Khimiya, 1981.
  7. Raghuraman, B.J., Tirmizi, N.P., Kim, B.S., and Wiencek, J.M., Emulsion liquid membranes for wastewater treatment: Equilibrium models for lead and cadmiumdi-2-ethylhexyl phosphoric acid systems, Environ. Sci. Technol., 1995, vol. 29, no. 4, p. 979.
  8. Sabry, R., Hafez, A., Khedr M., and El-Hassanin, A., Removal of lead by an emulsion liquid membrane: Part I, Desalination, 2007, vol. 212, nos. 1–3, p. 165.
  9. Azzoug, S., Arous, O., and Kerdjoudj, H., Metallic ions extraction and transport in supported liquid membrane using organo-phosphoric compounds as mobile carriers, J. Environ. Chem. Eng., 2014, vol. 2, no. 1, p. 154.
  10. Bhatluri, K.K., Manna, M.S., Ghosal A.K., and Saha, P., Supported liquid membrane based removal of lead(II) and cadmium(II) from mixed feed: conversion to solid waste by precipitation, J. Hazard. Mater., 2015, vol. 299, p. 504.
  11. Suren, S., Wongsawa, T., Pancharoen, U., et al., Uphill transport and mathematical model of Pb(II) from dilute synthetic lead-containing solutions across hollow fiber supported liquid membrane, Chem. Eng. J., 2012, vol. 191, p. 503.
  12. Suren, S., Pancharoen, U., and Kheawhom, S., Simultaneous extraction and stripping of lead ions via a hollow fiber supported liquid membrane: experiment and modeling, J. Ind. Eng. Chem., 2014, vol. 20, no. 4, p. 2584.
  13. Kozlowska, J., Kozłowski, C.A., and Koziol, J.J., Transport of Zn(II), Cd(II), and Pb(II) across CTA plasticized membranes containing organophosphorous acids as an ion carriers, Sep. Purif. Technol., 2007, vol. 57, no. 3, p. 430.
  14. Gherasim, C.-V.I., Bourceanu, G., Olariu, R.-I., and Arsene, C., Removal of lead(II) from aqueous solutions by a polyvinyl-chloride inclusion membrane without added plasticizer, J. Membr. Sci., 2011, vol. 377, nos. 1–2, p. 167.
  15. Sadyrbaeva, T.Zh., Liquid membrane system for extraction and electrodeposition of silver(I), J. Electroanal. Chem., 2010, vol. 648, no. 2, p. 105.
  16. Sadyrbaeva, T.Zh., Recovery of cobalt(II) by the hybrid liquid membrane–electrodialysis–electrolysis process, Electrochim. Acta, 2014, vol. 133, p. 161.
  17. Kholkin, A.I., Belova, V.V., Pashkov, G.L., et al., Solvent binary extraction, J. Mol. Liq., 1999, vol. 82, nos. 1–2, p. 131.
  18. Mikhailov, V.A., Chemistry of extraction of metals by dialkyl phosphoric acids and their salts, in Sovremennye problemy khimii i tekhnologii ekstraktsii (Modern Problems of Extraction Chemistry and Technology), Moscow: Ross. Akad. Nauk, 1999, vol. 1, p. 72.
  19. Gindin, L.M., Ekstraktsionnye protsessy i ikh primenenie (Extraction Processes and Their Application), Moscow: Nauka, 1984.
  20. Golubev, V.N. and Purin, B.A., Investigation of the electrical breakdown of the liquid membranes during anions transfer, Dokl. Akad. Nauk SSSR, 1977, vol. 232, no. 6, p. 1340.
  21. Schumacher, J.C., Perchlorates: Their Properties, Manufacture and Uses, London: Chapman and Hall, 1960.
  22. Holdich, R.G. and Lawson, G.J., The solvent extraction of lead from chloride solutions using di(2-ethylhexyl)phosphoric acid, Hydrometallurgy, 1985, vol. 14, no. 3, p. 387.
  23. Popov, A.N., Timofeeva, S.K., and Serga, V.E., Voltammetry of liquid membranes. IX. Solutions of n-trioctylamine salts in 1,2-dichloroethane. Influence of nonmixing layers on the selectivity of anion transfer, Latv. Kim. Z., 1991, no. 6, p. 675.