Coal flotation optimization using modified flotation parameters and combustible recovery in a Jameson cell

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dc.authorid0000-0003-2330-3074
dc.authorid0000-0003-4438-3982
dc.contributor.authorVapur, Hueseyin
dc.contributor.authorBayat, Oktay
dc.contributor.authorUcurum, Metin
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractThis study discusses a new coal flotation optimization approach. It is conducted using modified flotation parameters and combustible recovery. The experimental work was evaluated in two stages. In the first stage, recoveries (1, 2, 3, 5 and 8 min of flotation times) of Jameson flotation operating parameters were fitted to first-order kinetic model, R = R(infinity) [1 - exp (-kt)] where R was recovery at t time, R(infinity) was ultimate recovery and k was the first-order rate constant to draw the time recovery curves in the experimental study. Two parameters, the ultimate recovery (R) and first-order rate constant (k), were then obtained from the model to fit an experimental time recovery curve. A modified flotation rate constant (K(m)) defined as product of R(infinity) and k, i.e., K(m) = R(infinity) * k, and selectivity index (SI) defined as the ratio of the modified rate constant of coal to the modified rate constant of ash (SI)=K(m) of Coal/K(m) of Ash), which could be collectively called "modified flotation parameters". It was used to determine of the sub and upper values of operation variables. In the second one, combustible recovery (%) and ash content (%) were used to optimization of the Jameson flotation variables and it was found that d(80) = 0.250 mm particle size, 1/1 vegetable oil acids/kerosene ratio, 20% solids pulp density, 0.600 L/min wash water rate and 40 cm downcomer immersion dept could be used to separate efficiently coal from ash. Final concentrate was obtained with 94.83% combustible recovery and 17.86% ash content at optimum conditions after 8 min flotation time. (C) 2010 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.enconman.2010.02.019
dc.identifier.endpage1897
dc.identifier.issn0196-8904
dc.identifier.issue10
dc.identifier.scopus2-s2.0-77955336850
dc.identifier.scopusqualityQ1
dc.identifier.startpage1891
dc.identifier.urihttps://dx.doi.org/10.1016/j.enconman.2010.02.019
dc.identifier.urihttps://hdl.handle.net/11480/4835
dc.identifier.volume51
dc.identifier.wosWOS:000278730100007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofENERGY CONVERSION AND MANAGEMENT
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCoal flotation
dc.subjectFlotation kinetics
dc.subjectCombustible recovery
dc.subjectOptimization
dc.titleCoal flotation optimization using modified flotation parameters and combustible recovery in a Jameson cell
dc.typeArticle

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