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Separation and concentration of cobalt from aqueous thiocyanate solutions containing cobalt-nickel by emulsion liquid membranes using TBP as extractant

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dc.contributor.authors Kumbasar, RA;
dc.date.accessioned 2020-02-24T14:14:21Z
dc.date.available 2020-02-24T14:14:21Z
dc.date.issued 2009
dc.identifier.citation Kumbasar, RA; (2009). Separation and concentration of cobalt from aqueous thiocyanate solutions containing cobalt-nickel by emulsion liquid membranes using TBP as extractant. JOURNAL OF MEMBRANE SCIENCE, 338, 188-182
dc.identifier.issn 0376-7388
dc.identifier.uri https://doi.org/10.1016/j.memsci.2009.04.027
dc.identifier.uri https://hdl.handle.net/20.500.12619/44727
dc.description.abstract In this work, the zinc plant copper cake (CINKUR Co., Turkey) was leached with hydrochloric acid and main acidic leach solution containing Zn(II), Fe(II), Pb(II), Al(III), Cu(II), Co(II) and Ni(ll) ions was obtained. Except for cadmium, cobalt and nickel, the other metals were precipitated by adding various reagents and adjusting the pH of the solution. Then, cadmium was separated by solvent extraction process. After these separation processes, ammonium thiocyanate and water were added to remaining leach solution. Thus, acidic thiocyanate leach solutions used in ELM process were obtained. ELM consists of kerosene as diluent, tributyl phosphate as extractant, sorbitan monooleate (SPAN 80) as surfactant, and 6 M ammonia solution as the stripping solution. Separation and concentration of cobalt by ELM from acidic thiocyanate leach solution containing cobalt and nickel was performed. The important parameters governing the extraction behavior of cobalt have been investigated. These parameters were mixing speed, surfactant concentration, extractant concentration, phase ratio, treatment ratio, stripping solution base concentration, initial cobalt concentration in feed solution, thiocyanate concentration in the feed solution, and the feed solution pH. The results obtained showed that by appropriate selection of the extraction and stability conditions, nearly all of the cobalt ions present in the feed solution were extracted within 10 min. The separation factors of cobalt with respect to nickel, based on initial feed concentration, have experimentally found to be of as high as 310 for non-equimolar Co-Ni feed solutions. (C) 2009 Elsevier B.V. All rights reserved.
dc.language English
dc.publisher ELSEVIER
dc.subject Polymer Science
dc.title Separation and concentration of cobalt from aqueous thiocyanate solutions containing cobalt-nickel by emulsion liquid membranes using TBP as extractant
dc.type Article
dc.identifier.volume 338
dc.identifier.startpage 182
dc.identifier.endpage 188
dc.contributor.department Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü
dc.contributor.saüauthor Kumbasar, Recep Ali
dc.relation.journal JOURNAL OF MEMBRANE SCIENCE
dc.identifier.wos WOS:000267958400023
dc.identifier.doi 10.1016/j.memsci.2009.04.027
dc.identifier.eissn 1873-3123
dc.contributor.author Kumbasar, Recep Ali


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