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dc.contributor.authorKursunoglu, Sait
dc.date.accessioned2021-03-25T08:24:48Z
dc.date.available2021-03-25T08:24:48Z
dc.date.issued2019en_US
dc.identifier.urihttps://doi.org/10.1051/metal/2018107
dc.identifier.urihttps://hdl.handle.net/20.500.12573/624
dc.description.abstractThe synergistic effect of an organic acid on the dissolution of nickel and cobalt from a mixed nickel-cobalt hydroxide precipitate (MHP) in sulphuric acid solution was studied. The effects of sulphuric acid concentration, the type of organic acid, leaching time, leaching temperature and stirring speed on the dissolution of the metals were experimentally investigated. It was observed that there is no beneficial effect of leaching temperature and stirring speed on the dissolution of the metals from the used MHP product which contains 37.7% Ni, 2.1% Co and 5.6% Mn. It was found that citric acid was more effective than oxalic acid for the dissolution of nickel and manganese, whereas oxalic acid was more effective than citric acid for the dissolution of cobalt. The addition of oxalic acid into the leaching system, however, affected the dissolution of nickel negatively because nickel precipitate as nickel oxalate. Therefore, the use of citric acid as synergist for sulphuric acid leaching of MHP product is more promising. After 60 min of leaching, 90.9% Ni, 84.2% Co and 98.1% Mn were dissolved under the following conditions: 0.75 M sulphuric acid, 2 g citric acid, 1/10 solid-to-liquid ratio, 400 rpm stirring speed and 30 degrees C temperature. The experimental results demonstrate that the addition of citric acid as a synergist for sulphuric acid leaching of a MHP product provides beneficial effect for the dissolution of nickel, cobalt and manganese.en_US
dc.language.isoengen_US
dc.publisherEDP SCIENCES S A, 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCEen_US
dc.relation.isversionof10.1051/metal/2018107en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectorganic aciden_US
dc.subjectcobalten_US
dc.subjectnickelen_US
dc.subjectMHP producten_US
dc.subjectsynergistic effecten_US
dc.titleSynergistic effect of organic acid on the dissolution of mixed nickel-cobalt hydroxide precipitate in sulphuric acid solutionen_US
dc.typearticleen_US
dc.contributor.departmentAGÜ, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümüen_US
dc.contributor.authorID0000-0002-1680-5482en_US
dc.identifier.volumeVolume: 116en_US
dc.identifier.issue3en_US
dc.relation.journalMETALLURGICAL RESEARCH & TECHNOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası - Editör Denetimli Dergien_US


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