ASSESSMENT OF THE POSSIBILITY OF PRODUCING OF ELECTROLYTIC MANGANESE DIOXIDE FROM THE PURIFIED SOLUTIONS AFTER MANGANESE-SLUDGE LEACHING
https://doi.org/10.17073/0368-0797-2016-5-314-317
Abstract
Studies on the production of electrolytic manganese dioxide (EMD) from purified solutions after leaching of manganese sludge were held. The effect of anode current density on electrolysis manganese sulphate solutions is determined. The analysis of pre-treatment of manganese solutions before electrolysis was made. Conducting cleaning solution at pH 6,5–7,0 provides maximum deposition of impurities harmful to electrolysis of copper, zinc, nickel, cobalt, aluminum, phosphorus, arsenic, antimony, iron (III) and iron (II). After the deposition of impurities sludge is filtered, hydrate precipitate is washed, filtered liquid phase is sent to electrolysis to produce EDM. The EDM samples were examined using X-ray fluorescence, X-ray diffraction and scanning electron microscopy. The results showed that the EDM obtained under the laboratory conditions at an anodic current density in the range of Iа = 150–200 A/m2, meets all the requirements for high-level product: mass fraction of the main component – МnО2 is 95–96,5 % at the experiments.
About the Authors
G. Zh. Abdykirova
JSC “Center of the Earth Sciences, Metallurgy and Enrichment”, Almaty, Republic of Kazakhstan
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Leading Researcher
M. Sh. Tanekeeva
JSC “Center of the Earth Sciences, Metallurgy and Enrichment”, Almaty, Republic of Kazakhstan
Russian Federation
Russian Federation
Research Associate
A. E. Sydykov
JSC “Center of the Earth Sciences, Metallurgy and Enrichment”, Almaty, Republic of Kazakhstan
Russian Federation
Russian Federation
Senior Engineer
S. B. Dyusenova
JSC “Center of the Earth Sciences, Metallurgy and Enrichment”, Almaty, Republic of Kazakhstan
Russian Federation
Russian Federation
Engineer
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For citations:
Abdykirova G.Zh., Tanekeeva M.Sh., Sydykov A.E., Dyusenova S.B. ASSESSMENT OF THE POSSIBILITY OF PRODUCING OF ELECTROLYTIC MANGANESE DIOXIDE FROM THE PURIFIED SOLUTIONS AFTER MANGANESE-SLUDGE LEACHING. Izvestiya. Ferrous Metallurgy. 2016;59(5):314-317. (In Russ.) https://doi.org/10.17073/0368-0797-2016-5-314-317
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