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The Effect of Bubble Surface Area Flux on Flotation Efficiency of Pyrite Particles
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نویسنده
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Shahbazi Behzad ,Rezai Bahram ,Koleini Sayed Mohammad Javad ,Noparast Mohammad
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منبع
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iranian journal of chemistry and chemical engineering - 2013 - دوره : 32 - شماره : 2 - صفحه:109 -118
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چکیده
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In this research, the effect of bubble surface area flux, sb, and particle size on flotation rate constant, k, of pyrite (fes2) particles was studied using bubble-particle interactions. the bubble-particle collision, attachment and detachment efficiencies were calculated under different flow regimes. the k increased with increase in the collision efficiency and decrease in the detachment efficiency. also the bubble-particle collection efficiency increased with increase in the sb. thus difficulty in the floating of fine particles was attributed to low efficiency of the bubble-particle collision efficiency while difficulty in the floating of coarse particles was due to high efficiency of bubble-particle detachment. maximum collision, attachment and detachment efficiencies were obtained as 81.57%, 50.60% and 51.89%, respectively.
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کلیدواژه
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Flotation ,Pyrite ,Collision ,Attachment ,Detachment
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آدرس
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islamic azad university, Department of Mining Engineering, Science and Research Branch, Islamic Azad University, Tehran, I R IRAN, ایران, amirkabir university of technology, Mining Engineering Department, Amirkabir University of Technology, Tehran, I R IRAN, ایران, tarbiat modares university, Mining Engineering Department, Tarbiat Modares University, Tehran, I R IRAN, ایران, university of tehran, Mining Engineering Department, University of Tehran, Tehran, I R IRAN, ایران
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Authors
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