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dc.contributor.author Mayumi, I
dc.contributor.author Atsuhiro, T
dc.contributor.author Tatsuya, S
dc.contributor.author Tsuyoshi, H
dc.contributor.author Carlito, BT
dc.contributor.author Naoki, H
dc.contributor.editor Abeysinghe, AMKB
dc.contributor.editor Dassanayake, ABN
dc.contributor.editor Elakneswaran, Y
dc.date.accessioned 2017-10-30T19:51:58Z
dc.date.available 2017-10-30T19:51:58Z
dc.identifier.citation Mayumi, I., Atsuhiro, T., Tatsuya, S., Tsuyoshi, H., Carlito, B.T., & Naoki, H. (2017). Effects of metal ions on flotation of Sulfide minerals. In A.M.K.B. Abeysinghe, A.B.N. Dassanayake & Y. Elakneswaran (Eds.), Proceedings of International Symposium on Earth Resources Management & Environment 2017 (pp. 43-48). Department of Earth Resources Engineering, University of Moratuwa.
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/12834
dc.description.abstract Flotation is a mineral processing method that using deference of Hydrophilicity/hydrophobicity. In flotation, air bubbles are induced to the slurry that contains ground ore and water. Hydrophobic minerals are attached to air bubbles and floated to the surface of the slurry, and hydrophilic minerals remains in the slurry. Hydrophilic/hydrophobic property of minerals can be controlled by chemical reagents: Collectors like xanthate adsorbs on Cu and Pb sulfide minerals and make the mineral surface hydrophobic. If ore contains several minerals, interaction of the minerals on the floatation is observed: Sphalerite has less affinity to xanthate and low floatability. When anglesite exists with sphalerite, however, Pb2+ released from anglesite react with sphalerite and PbS-like compounds is formed on the surface, which has a high affinity to xanthate, resulting in the high floatability of sphalerite. Using a model sample containing galena, sphalerite, pyrite, anglesite, pyrrhotite and barite, the effects of Zn2+ on the flotation of the minerals was investigated with DOW#250 as frother, potassium amyl xanthate as collector, Na2SO3 as depressant, H2SO4 and NaOH as pH adjuster. When 500 ppm of Zn2+ was added, floatability of sphalerite was suppressed. The suppression mechanism of sphalerite by Zn2+ is discussed based on the experimental results. en_US
dc.language.iso en en_US
dc.subject Galena en_US
dc.subject Hetero-coagulation
dc.subject Mineral processing
dc.subject Precipitates
dc.subject Sphalerite
dc.title Effects of metal ions on flotation of Sulfide minerals en_US
dc.type Conference Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2017 en_US
dc.identifier.conference International Symposium on Earth Resources Management & Environment 2017 en_US
dc.identifier.place Wadduwa en_US
dc.identifier.pgnos pp. 43-48 en_US
dc.identifier.proceeding Proceedings of International Symposium on Earth Resources Management & Environment 2017
dc.identifier.email tkdathr@gmail.com en_US


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