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dc.contributor.authorRulyov, N.-
dc.contributor.authorFilippov, L.-
dc.contributor.authorKravchenko, O.-
dc.date.accessioned2022-07-22T11:09:24Z-
dc.date.available2022-07-22T11:09:24Z-
dc.date.issued2020-
dc.identifier.urihttp://ir.librarynmu.com/handle/123456789/3692-
dc.description.abstractIt is well established that application of microbubbles in combination with coarser ones ensures a significant increase in the flotation efficiency of very fine (< 20 μm) and very coarse (> 100 μm) particles. The objective of this study is to determine the impact of microbubbles on the flotation efficiency of medium-sized particles (50−80 μm). In tests runs we used glass beads (ballotini) of various size grades in the range:50; 50−63; 63−71; 71−80 μm as flotation objects. We used CTAB as both a collector and a frother at the dosage of 0.06 mg per 1 g of ballotini. Prior to starting flotation by coarse bubbles, a dosage of microbubbles less than 60 μm in size in the form of a concentrated (66 vol. %) microbubbles dispersion in CTAB solution of (0.2 g L−1) produced by the MBGen-0.012 generator was fed into a flotation cell. The best flotation performance is observed for the fraction of 63−71 μm, whereas the flotation rate constants for all fractions are directly proportional to the volume dosage of microbubbles, when it does not exceed 0.2 mL g−1. The size of microbubbles significantly affects the flotation effectiveness and depends on the concentration of the collector/ frother used for their production. The main mechanism of flotation performance enhancement through microbubbles application, involves formation of coarse aggregates comprising large number of microbubbles and particles, which provides for a significant increase in the capture efficiency of aggregates by coarse bubbles.uk_UA
dc.subjectCombined microflotation Air-in-water micro dispersion Glass beads Microbubblesuk_UA
dc.titleCombined microflotation of glass beadsuk_UA
dc.typeArticleuk_UA
Розташовується у зібраннях:Наукові публікації кафедри медичної біохімії та молекулярної біології

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