dc.contributor.author | Guler, Taki | |
dc.contributor.author | Sahbudak, Kemal | |
dc.contributor.author | Cetinkaya, Sevil | |
dc.contributor.author | Akdemir, Unal | |
dc.date.accessioned | 2020-11-20T16:19:24Z | |
dc.date.available | 2020-11-20T16:19:24Z | |
dc.date.issued | 2013 | |
dc.identifier.issn | 1003-6326 | |
dc.identifier.issn | 2210-3384 | |
dc.identifier.uri | https://doi.org/10.1016/S1003-6326(13)62795-8 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12809/3744 | |
dc.description | Guler, Taki/0000-0001-9688-6894 | en_US |
dc.description | WOS: 000326139900038 | en_US |
dc.description.abstract | Ovalbumin (OVA), chicken egg albumin, is an environmentally friendly, non-toxic, cheap surface active agent. It has electrochemically active sulfhydryl residues in molecular structure. OVA adsorption on pyrite as an alternative depressant was investigated by cyclic voltammetry, FTIR spectroscopy and flotation. Tests were conducted in a wide potential range in alkaline pH to clarify the role of electrochemical condition on the adsorption mechanisms and the rate of depression. In the absence of OVA, the floatability reached its maxima around slightly oxidizing condition. Beyond the range, it decreased presumably due to the formation of Fe-oxyhydroxides together with the hydrophilic S-containing species. OVA-pyrite interaction occurred in the whole examined potential range. Depressing effect of OVA increased gradually from reducing to slightly oxidizing potential, open circuit potential (OCP) of pyrite, mainly due to weak conformational changes in OVA molecules together with the hydrophobic interaction around OCP. The rate of depression reached its maxima at moderately oxidizing potentials, which was referred to electrostatic attraction. This level was almost kept at higher potentials owing to OVA adsorption as metal-chelates. | en_US |
dc.description.sponsorship | Cumhuriyet University Scientific Research Project Unit, TurkeyCumhuriyet University [M-279] | en_US |
dc.description.sponsorship | Foundation item: Project (M-279) supported by Cumhuriyet University Scientific Research Project Unit, Turkey | en_US |
dc.item-language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.item-rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Pyrite | en_US |
dc.subject | Froth Flotation | en_US |
dc.subject | Ovalbumin | en_US |
dc.subject | Redox Reactions | en_US |
dc.subject | Depression | en_US |
dc.title | Electrochemical study of pyrite-ovalbumin interaction in relation to flotation | en_US |
dc.item-type | article | en_US |
dc.contributor.department | MÜ | en_US |
dc.contributor.departmentTemp | [Guler, Taki] Mugla Sitki Kocman Univ, Dept Min Engn, TR-48170 Mugla, Turkey -- [Sahbudak, Kemal] Cumhuriyet Univ, Dept Met & Mat Engn, TR-58140 Sivas, Turkey -- [Cetinkaya, Sevil; Akdemir, Unal] Cumhuriyet Univ, Dept Min Engn, TR-58140 Sivas, Turkey | en_US |
dc.identifier.doi | 10.1016/S1003-6326(13)62795-8 | |
dc.identifier.volume | 23 | en_US |
dc.identifier.issue | 9 | en_US |
dc.identifier.startpage | 2766 | en_US |
dc.identifier.endpage | 2775 | en_US |
dc.relation.journal | Transactions of Nonferrous Metals Society of China | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |