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dc.contributorMarkoš, Jozef
dc.creatorMarković, Radmila
dc.creatorStevanović, Jasmina
dc.creatorJugović, Branimir
dc.creatorGvozdenović, Milica M.
dc.creatorAvramović, Ljiljana
dc.date.accessioned2019-02-07T01:25:45Z
dc.date.available2019-02-07T01:25:45Z
dc.date.issued2012
dc.identifier.isbn9788089475049
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/495
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2620
dc.description.abstractIn this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes with non-standard content of nickel, lead, tin and antimony were used as material for electrochemical refinement. Nickel content in anodes was approximately 5 or 7.5 wt. %, and the summary content of lead, tin and antimony was up to 3 wt. %. Copper content was a difference of up to 100 wt. %. Chemical analysis of the waste solution from copper refining process which was used as electrolyte has shown that the Ni and As ions are present in concentrations of Ni - 20.5 g dm-3 and As – 4 g dm-3. The experiments were carried out in galvanostatic mode at current density of 250 A m-2, at electrolyte temperatures of T1 = 63 ± 2 0C and T2 = 73 ± 2 0C for a process duration of 72 h. The data obtained on the basis of the measured values of cell voltage for each anode where the nickel content was approximately 5 wt. % (anodes marked as A1-A4) and nickel content of approximately 7.5 wt.% (anodes marked as A5-A8) shown that using the anodes with lower nickel content (A2 and A3) leads to the appearance of full pasivation phenomenon at both electrolyte temperature. The apperance of full passivation for anodes with higher nickel content (A5-A7) is registered only at lower electrolyte temperature.en
dc.format(2012) 1462-1466
dc.formatapplication/pdf
dc.languageen
dc.publisherTatranské Matliare : Slovak Society of Chemical Engineering
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37001/RS//
dc.rightsopenAccess
dc.sourceProceedings of the 39th International Conference of Slovak Society of Chemical Engineeringen
dc.subjectcopper anodes
dc.subjectnon-standard chemical composition
dc.subjectnickel
dc.subjectsulphur-acidic waste solution
dc.titleThe effect of Ni content on passivation of copper anodes with non-standard chemical compositionen
dc.typeconferenceObject
dc.rights.licenseBY-NC-ND
dcterms.abstractМарковић, Радмила; Гвозденовић, Милица М.; Aврамовић, Љиљана; Стевановић, Јасмина; Југовић, Бранимир З.;
dc.citation.spage1462
dc.citation.epage1466
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/8921/2620.pdf
dc.type.versionpublishedVersion


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