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Mathematical Modeling and Experimental Studies of the Joint Electrodeposition of Gold and Silver from Sulfuric Acid Thiourea Solutions on Flow-Through 3D Electrode Taking into Account Its Nonstationary State

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Abstract

Mathematical models of electrochemical processes in reactors with flow-through 3D electrodes for the electrodeposition of metals from a polycomponent electrolyte solution have been presented. The parameters of the process and electrode, such as the flow rate of the electrolyte, porosity, specific surface, and the specific conductivity of the electrode and solution, at each electrode point during electrolysis have been taken into account. The mathematical models and methods for determining the electrochemical and hydrodynamic parameters of multicomponent electrochemical systems have been described. The data have been used to calculate industrial electrochemical processes in flow-through 3D electrodes. The adequacy of these methods has been shown. The experimental and calculated data on the electrodeposition of gold and silver from sulfuric acid thiourea solutions to carbon-graphite fiber cathodes have been analyzed. The dependences of electrodeposition parameters on the electrolysis conditions, the initial properties of the electrode-solution system, and the concentration ratio of gold and silver in the solution taking into account the joint reduction of hydrogen ions and molecular oxygen have been examined. The current and resulting regularities of the processes have been revealed. The adequacy of the mathematical models for industrial joint electrodeposition of gold and silver from sulfuric acid thiourea solutions on flow-through 3D electrodes taking into account the side electrode reactions has been shown. The appearance of anode zones on a cathode polarized carbon fiber flow electrode during the deposition of metals from multicomponent systems has been considered.

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References

  1. Alkire, R. and Gracon, B., Flow-through porous electrodes, J. Electrochem. Soc., 1975, vol. 122, no. 12, pp. 1594–1601.

    Article  CAS  Google Scholar 

  2. Bek, R.Yu., Prospects of the use of electrodes with a developed surface in hydrometallurgy, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, 1977, vol. 14, no. 6, p. 11.

    Google Scholar 

  3. Olive, H. and Lacoste, G., Application of volumetric electrodes to the recuperation of metals in industrial effluents—I. Mass transfer in fixed beds of spherical conductive particles, Electrochim. Acta, 1979, vol. 24, no. 10, pp. 1109–1114. https://doi.org/10.1016/0013-4686(79)85009-4.

    Article  CAS  Google Scholar 

  4. Kreysa, G., Electrochimie mit dreidimensionalen Electroden, Chem. Ing. Techn., 1983, no. 1, p. 23.

    Article  Google Scholar 

  5. Fioshin, M.Ya. and Smirnova, M.G., Elektrokhimicheskie sistemy v sinteze khimicheskikh produktov (Electrochemical Systems in the Synthesis of Chemicals), Moscow: Khimiya, 1985.

    Google Scholar 

  6. Scott, K. and Paton, E.M., An analysis of metal recovery by electrodeposition from mixed metal ion solutions—Part II. Electrodeposition of cadmium from process solutions, Electrochim. Acta, 1993, vol. 38, no. 15, pp. 2191–2197. https://doi.org/10.1016/0013-4686(93)80097-J.

    Article  CAS  Google Scholar 

  7. Fialkov, A.S., Uglerod. Mezhsloevye soedineniya i kompozity na ego osnove (Carbon: Interlayer Compounds and Composites on Its Base), Moscow: Aspekt, 1997.

    Google Scholar 

  8. Ermolenko, I.N., Lyubliner, I.P., and Gul’ko, N.V., Elementosoderzhashchie ugol’nye voloknistye materialy (Element-Containing Carbon Fiber Materials), Minsk: Nauka i Tekhnika, 1982.

    Google Scholar 

  9. Gurevich, I.G., Vol’fkovich, Yu.M., and Bagotskii, V.S., Zhidkostnye poristye elektrody (Liquid Porous Electrodes), Minsk: Nauka i Tekhnika, 1974.

    Google Scholar 

  10. Varentsov, V.K., Electrochemical processes and apparatuses with flow-through volumetric porous electrodes for the recovery of metals from diluted solutions, Doctoral (Eng.) Dissertation, Sverdlovsk: Inst. of Electrochemistry, Ural Branch, Academy of Sciences of the USSR, 1990.

    Google Scholar 

  11. Varentsov, V.K., Koshev, A.N., and Varentsova, V.I., Sovremennye problemy elektroliza i zadachi optimizatsii protsessov v reaktorakh s trekhmernymi uglerodnymi elektrodami. Monografiya (Current Topics in Electrolysis and Optimization for Processes in Reactors with Three-Dimensional Carbon Electrodes: Monograph), Penza: PGUAS, 2015.

    Google Scholar 

  12. Varentsov, V.K. and Varentsova, V.I., Modifying electrode properties of carbon-fiber materials by electrolysis in aqueous solutions, Russ. J. Electrochem., 2001, vol. 37, no. 7, pp. 690–698. https://doi.org/10.1023/A:1016760500064.

    Article  CAS  Google Scholar 

  13. Varentsov, V.K. and Koshev, A.N., Mathematical modeling of electrochemical processes in flow-through three-dimensional electrodes, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, 1988, no. 17, pp. 117–125.

    Google Scholar 

  14. Maslii, A.I., Poddubnyi, N.P., and Medvedev, A.Zh., Dynamics of the filling of a porous cathode by the deposited metal: Modeling the process and analyzing the case of high cathode conductance and low solution depletion degree, Russ. J. Electrochem., 2005, vol. 41, no. 3, pp. 294–303. https://doi.org/10.1007/s11175-005-0065-4.

    Article  CAS  Google Scholar 

  15. Maslii, A.I., Poddubnyi, N.P., and Medvedev, A.Zh., Dynamics of codeposition of metals inside porous electrode operating in direct-flow mode, Russ. J. Electrochem., 2010, vol. 46, no. 4, pp. 411–421. https://doi.org/10.1134/S1023193510040063.

    Article  CAS  Google Scholar 

  16. Saleh, M.M., Simulation of oxygen evolution reaction at porous anode from flowing electrolytes, J. Solid State Electrochem., 2007, vol. 11, no. 6, pp. 811–820. https://doi.org/10.1007/s10008-006-0227-7.

    Article  CAS  Google Scholar 

  17. Newman, J.S., Electrochemical Systems, Englewood Cliffs, N.J.: Prentice Hall, 1973.

    Google Scholar 

  18. Koshev, A.N., Chirkina, M.A., and Varentsov, V.K, Nonstationary mathematical models of the electrochemical processes in volumetric porous flow electrodes, Russ. J. Electrochem., 2007, vol. 43, no. 11, pp. 1299–1304. https://doi.org/10.1134/S1023193507110146.

    Article  CAS  Google Scholar 

  19. Bek, R.Yu., Zamyatin, A.P., Koshev, A.N., and Poddubnyi, N.P., Mathematical modeling of the electrolytic process of metal deposition in the pores of a flowthrough volumetric porous electrode, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, 1980, vol. 1, no. 2, p. 110.

    Google Scholar 

  20. Koshev, A.N., Varentsov, V.K., Chirkina, M.A., and Kamburg, V.G., Mathematical modeling and theory of polarization distribution in electrochemical reactors with flow-through volumetric porous cathodes, Mat. Model., 2011, vol. 23, no. 8, p. 110.

    Google Scholar 

  21. Spravochnik po elektrokhimii (Handbook of Electrochemistry), Sukhotin, A.M., Ed., Leningrad: Khimiya, 1981.

  22. Koshev, A.N. and Kuzina, V.V., Modeling and calculation of the concentration of an electroactive component in the electrolysis process, Upr. Bol’shimi Sist., 2011, vol. 33, pp. 233–253.

    Google Scholar 

  23. Dil’man, V.V. and Polyanin, A.D., Metody model’nykh uravnenii i analogii v khimicheskoi tekhnologii (Methods of Model Equations and Analogies in Chemical Engineering), Moscow: Khimiya, 1988.

    Google Scholar 

  24. Koshev, A.N., Varentsov, V.K., and Sukhov, I.F., Calculation of effective conductivity profile of electrochemical reactor with flow-type three-dimensional electrodes, Theor. Found. Chem. Eng., 2014, vol. 48, no. 2, pp. 180–187. https://doi.org/10.1134/S0040579514020079.

    Article  CAS  Google Scholar 

  25. Laskorin, B.N., Vyalkov, V.I., and Dobroskokin, V.V., Sorption technology in gold hydrometallurgy, in Gidrometallurgiya zolota (Gold Hydrometallurgy), Moscow: Nauka, 1980, p. 76.

    Google Scholar 

  26. Lodeishchikov, V.V., Panchenko, A.F., and Khmel’nitskaya, O.D., Thiocarbamide leaching of gold and silver ores, in Gidrometallurgiya zolota (Gold Hydrometallurgy), Moscow: Nauka, 1980, p. 26.

    Google Scholar 

  27. Daniel’-Bek, V.S., On the polarization of porous electrodes, Zh. Fiz. Khim., 1948, vol. 22, p. 697.

    Google Scholar 

  28. Zherebilov, A.F. and Varentsov, V.K., Experimental verification of the presence of anodic zones at the cathode made of graphitized carbon fiber materials, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, 1985, vol. 8, no. 3, p. 35.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630128, Russia

    V. K. Varentsov

  2. Penza State University of Architecture and Building, Penza, 440028, Russia

    A. N. Koshev & I. F. Sukhov

Authors
  1. V. K. Varentsov
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  2. A. N. Koshev
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  3. I. F. Sukhov
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Correspondence to V. K. Varentsov.

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Original Russian Text © V.K. Varentsov, A.N. Koshev, I.F. Sukhov, 2018, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2018, Vol. 52, No. 4, pp. 391–402.

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Varentsov, V.K., Koshev, A.N. & Sukhov, I.F. Mathematical Modeling and Experimental Studies of the Joint Electrodeposition of Gold and Silver from Sulfuric Acid Thiourea Solutions on Flow-Through 3D Electrode Taking into Account Its Nonstationary State. Theor Found Chem Eng 52, 495–505 (2018). https://doi.org/10.1134/S004057951803017X

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