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IFAC Proceedings Volumes (IFAC-PapersOnline)Volume 46, Issue 16 PART 1, 2013, Pages 259-26216th IFAC Symposium on Automation in Mining, Minerals and Metal Processing, MMM 2013; San Diego, CA; United States; 25 August 2013 through 28 August 2013; Code 99961

The effect of the nickel sulphide alloys structure on their electrochemical oxidation parameters(Conference Paper)(Open Access)

  • Selivanov, E.N.,
  • Nechvoglod, O.V.,
  • Lobanov, V.G.
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  • aFederal State Budget Institution of Science, Institute of Metallurgy of Ural Branch, Russian Academy of Sciences (IMET UB RAS), Amundsen st 101, Yekaterinburg, Russian Federation
  • bUral Federal University Named after First President of Russia, B.N Yeltsin, Mira st 19, Yekaterinburg, Russian Federation

Abstract

The granulation of nickel sulphide alloys results in formation of the ultrafine structure because of their reactivity is increased in the hydrometallurgical processing The phase composition and phase size of nickel sulphide alloys granulated was studied by X-ray and optical microscopy methods It is shown the high cooling rate leads to the crystallization of non-equilibrium phase and dispersion of a metal component The parameters of the electrochemical oxidation of nickel sulfide granular alloys in sulfuric acid solution were estimated The initial potentials of phase components oxidation of nickel sulfide alloys granulated were defined The rate of electrochemical oxidation of nickel sulfide alloys granulated is higher than that at slow-rate cooling Copyright © 2013 IFAC.

Author keywords

Electro oxidationMicrostructureNickel convertor matteNickel sulphidePassivation.Sulfur

Indexed keywords

Engineering controlled terms:Electrochemical oxidationElectrooxidationMicrostructureNickel alloysPassivationSulfurSulfur compounds
Engineering uncontrolled termsHigh cooling ratesHydrometallurgical processingInitial potentialMetal componentsNickel sulphideNon-equilibrium phaseSulfuric acid solutionUltrafine structure
Engineering main heading:Nickel compounds

Funding details

Funding sponsor Funding number Acronym
Russian Academy of Sciences12-I-3-103РАН

  • 1

    This research was supported by the Presidium of RAS project No. 12-I-3-103.

  • ISSN: 14746670
  • ISBN: 978-390282342-7
  • Source Type: Conference Proceeding
  • Original language: English
  • DOI: 10.3182/20130825-4-US-2038.00098
  • Document Type: Conference Paper
  • Sponsors: and Metal Processing,Control (IFAC) - TC 6.2. Mining, Mineral,International Federation of Automatic,TC 6.1. Chemical Process Control,TC 6.3. Power and Energy Systems
  • Publisher: IFAC Secretariat


© Copyright 2021 Elsevier B.V., All rights reserved.

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