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Title: | Electrochemical synthesis of nickel-aluminium oxide system from metals obtained by ore processing |
Authors: | Korobochkin, Valery Vasilievich Usoltseva, Natalia Vasilievna Shorokhov, K. G. Popova, E. V. |
Keywords: | электрохимический синтез; оксид никеля; алюминий; металлы; переработка; руды; электрохимическое окисление |
Issue Date: | 2015 |
Publisher: | IOP Publishing |
Citation: | Electrochemical synthesis of nickel-aluminium oxide system from metals obtained by ore processing / V. V. Korobochkin [et al.] // IOP Conference Series: Earth and Environmental Science. — 2015. — Vol. 27 : Problems of Geology and Subsurface Development : XIX International Scientific Symposium in honor of Academician M. A. Usov, 6–10 April 2015, Tomsk, Russia. — [012048, 6 p.]. |
Abstract: | Separate and combined electrochemical oxidation of aluminium and nickel has been conducted by alternating current of industrial frequency. Concentration increase of electrolyte solution (sodium chloride) in the range from 3 to 25 wt. % and current density from 0.5 to 1.5 A/cm{2} was found to result in the increasing metal oxidation rate, excluding aluminium oxidation which oxidation rate is independent of the electrolyte solution concentration. At the current density of 1.5 A/cm{2} the products of separate oxidation of nickel and aluminium are nickel oxyhydroxides, nickel hydroxides and aluminium oxyhydroxide (boehmite), respectively. In addition to these compounds, the nickel-aluminium oxide hydrate is included in the products of nickel and aluminium co-oxidation. Its content grows with the increasing electrolyte solution concentration. Varying the concentration and current density within the limits indicated, the nickel-aluminium oxide system with nickel oxide content from 3 to 10 wt. % is produced. |
URI: | http://earchive.tpu.ru/handle/11683/19948 |
Appears in Collections: | Материалы конференций |
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File | Description | Size | Format | |
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dx.doi.org-10.1088-1755-1315-27-1-012048.pdf | 932,52 kB | Adobe PDF | View/Open |
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