Production of electrolytic manganese dioxide from purified solutions after the leaching of manganese-bearing slurry
- Авторы: Abdykirova G.1, Tanekeeva M.1, Sydykov A.1, Diosenova S.1
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Учреждения:
- Center on Earth Sciences, Metallurgy, and Enrichment
- Выпуск: Том 46, № 5 (2016)
- Страницы: 319-321
- Раздел: Article
- URL: https://journals.rcsi.science/0967-0912/article/view/178705
- DOI: https://doi.org/10.3103/S0967091216050028
- ID: 178705
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Аннотация
The production of electrolytic manganese dioxide from purified solutions after the leaching of manganese-bearing slurry is investigated. The influence of the anodic current density on the electrolysis of manganese-bearing solutions is determined. The preliminary purification of manganese-bearing solutions before electrolysis is discussed. Purification of the solution at pH 6.5–7.0 ensures the maximum deposition of all the impurities that interfere with electrolysis: copper, zinc, nickel, cobalt, aluminum, phosphorus, arsenic, antimony, iron (III), and iron (II). After impurity deposition, the pulp is filtered; the hydrate deposits are washed; and the filtered liquid is sent for electrolysis to obtain electrolytic manganese dioxide. The samples of electrolytic manganese dioxide are studied by means of X-ray fluorescent analysis, X-ray phase analysis, and scanning electron microscopy. The results show that the electrolytic manganese dioxide obtained in the laboratory with anodic current density Ia = 150–200 A/m2 meets all the requirements on a highly active product: the content of the basic component (MnO2) in the experiments is 95.0–96.5 wt %.
Об авторах
G. Abdykirova
Center on Earth Sciences, Metallurgy, and Enrichment
Автор, ответственный за переписку.
Email: abdgul@mail.ru
Казахстан, Almaty
M. Tanekeeva
Center on Earth Sciences, Metallurgy, and Enrichment
Email: abdgul@mail.ru
Казахстан, Almaty
A. Sydykov
Center on Earth Sciences, Metallurgy, and Enrichment
Email: abdgul@mail.ru
Казахстан, Almaty
S. Diosenova
Center on Earth Sciences, Metallurgy, and Enrichment
Email: abdgul@mail.ru
Казахстан, Almaty