Biosensors Journal
Open Access

Abstract

The novel hydroelectrometallurgical technology is developed to simultaneously production of electrolytic metallic manganese, electrolytic �?³-MnO2 and MnSO4â�?�?H2O in one technological cycle. The united, complex technological scheme consists of two technological lines. One of these lines is designed for: By sulfuric acid leaching of MnO containing primary products formed by high thermal reduction of manganese oxide ores; Purification from Fe3+, Ni2+, Co2+ and other heavy metals cations by hydrolysis (pH4) and adding Na2S into the MnSO4 solution; Crystallization of MnSO4â�?�?H2O after treatment of concentrated MnSO4 solution in autoclave under high temperature condition; Supply of hot, autoclave outlet solution of MnSO4 to anodic area (anodic area is separated by anionic membrane to prevent flow of NH4+ into anolyte) where �?³-MnO2 is deposed on the anode. The second technological line is designed for: Purification of solution prepared from MnSO4â�?�?H2O produced in the autoclave and technical (NH4)2SO4 by (NH4)2S and supply of purified solution to the cathodic area of the same reactor where metallic Mn is deposed on the cathode. In accordance with presented technological scheme, optimal technological parameters are determined for MnSO4â�?�?H2O and 50-55 gâ�?�?l-1 Mn2+containing solutions obtained by autoclave treatment of concentrated clean solution of MnSO4 (115 gâ�?�?l-1 Mn2+) produced after processing of manganese oxide ore. The technological novelty also is exploitation of heat pump to maintain 35-380C in catholyte and 92-940C in anolyte in an electrochemical reactor working under 20A load and divided by anionic membrane (AMI 7001S). As a cooling agent of heat pump, R-600a (isobutane) was chosen. The evaporator of the heat pump was immersed into the catholyte and the condenser - into the anolyte. The effectiveness of heat pump was also determined . Recent Publications: 1. G. Tsurtsumia, D. Gogoli, N. Koiava, I. kakhniashvili, N. Jokhadze, T. Lezhava, N.Nioradze, D.Tatishvili. (2017) Electrodeposition and Characterization of Mn-Cu-Zn Alloys for Corrosion Protection Coathing. IOP Conf. Series: Earth and Environmental Science 95 042035. 2. P. Nikoleishvili, G. Gorelishvili, V. Kveselava, G. Tsurtsumia, N. Nioradze, R. Kurtanidze, D. Dzanashvili. (2017) Hydrogen generation by reforming of sodium hypophosphite on cobalt-boron oxides containing catalyst. Green and Sustainable Chemistry, 7, pp. 85-93. 3. G. Tsurtsumia, N. Ð�?oiava, D. Gogoli, I. Kakhniashvili, T. Lejava, N. Jokhadze, E. Kemoklidze. (2016) Study of the Influence of the Electrolysis Parameters on Mn-Zn, Mn-Cu, Mn-Cu-Zn Alloys Coatings from Electrolytes Containing Complexing ligands. J. Chem. Chem. Eng. 1 13-27. 4. G. S. Tsurtsumia, N. S. Ð�?oiava, N. S. G. G. Gogishvili ,I.T.Zaridze, , I. B. Kakhniashvili, G. G.Gorelishvili, , V. M. Kveselava, P. N.Nikoleishvili. (2015) Simultasneoues Prodaction of Electrolytic Metallic Manganese and Electrolytic Manganese Dioxide in an AMI 7001S Anion Exchange Membrane Electrochemical Reactor. J. Electrochemical Society, 162, (8) E96-E103 5. P.O. Nikoleishvili, G.S. Tsurtsumia, V.M. Kveselava, G.G. Gorelishvili, R.R. Kurtanidze, D.T. Sharabidze, and D. I. Dzanashvili. (2015) Using Hydrogen Obtained by Reforming of NaBH4 on Modified Cobalt Catalyst in HydrogenOxygen Fuel Cell. Russian J. Electrochemistry, Vol. 51, No. 7, pp. 665-671.

Biography

Gigla Tsurtsumia  got his PhD from Karpov Physico-Chemical Institute in 1977, Moscow, Russia. His interest is related to electrochemical technology of production of manganese and its compounds,  electrodeposition of alloy coatings and fuel cells. He published more than 40 papers and got 6 patents.
Email:giglat@yahoo.com