Results 331 to 340 of about 1,027,280 (394)
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Bubble spargers in column flotation: Adaptation to precipitate flotation
Minerals Engineering, 2000Abstract The limiting factor for metal-organic precipitate flotation in a column is the level of aggregate stability under the turbulence created by the rising bubbles. The hydrodynamic conditions in a 75 mm diameter pilot column were optimised by using different bubble spargers (Microcel, Flotaire, Imox) and by varying the gas flow rate into the ...
L.O. Filippov, R. Joussemet, R. Houot
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Hydrodynamics of fluidized bed flotation column with a homogeneous binary mixture of steel balls
Powder Technology, 2023Peng Chen +5 more
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Development of a laboratory-scale flotation column with inlet bubble size measurement
Minerals Engineering, 2019This paper presents the development of a small-scale (1 in.) laboratory flotation column with online measurement of bubble size. In contrast to the systems that use sampling-for-image techniques and have the viewing chamber located at the top of the ...
Marco Aurelio Seger +2 more
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Numerical studies on dynamic and oil-water separation characteristics in cyclonic flotation column
Chemical engineering research & design, 2023Qiang Li +5 more
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Column flotation: A selected review. Part I
International Journal of Mineral Processing, 1991Abstract This review of recent work on column flotation focuses on three aspects: mixing in the collection zone, maximum gas rates and carrying capacity. The plug flow dispersion model is shown to be adequate for fitting the residence time distribution without resort to compartment models.
G.S. Dobby, J.A. Finch
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Desulfurization of coal by microbial column flotation
Biotechnology and Bioengineering, 1994AbstractTwenty‐three strains capable of oxidizing iron were isolated from coal and ore storage sites as well as coal and ore mines, volcanic areas, and hot spring. Four strains were found to have high iron‐oxidizing activity. One strain (T‐4) was selected for this experiment since the strain showed the fastest leaching rate of iron and sulfate from ...
N, Ohmura, H, Saiki
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Separation performance of flotation column with dilution water in pulp zone
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019Flotation columns show a good separation performance for fine coal slime and have been widely used in coal preparation plants. In this study, to reduce the ash content of the concentrate, dilution water was added to the pulp zone of the flotation column.
Guangxi Ma +6 more
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Flotation kinetics of coal in the Inflatable Cyclonic Flotation Column
Powder Technology, 2018Abstract This paper mainly investigates the flotation kinetics of coal in the flotation column. The flotation tests were carried out in the Inflatable Cyclonic Flotation Column (ICFC) which consists of two parts, i.e., the inflatable flotation unit and the cyclone flotation zone.
Li, Ningbo +6 more
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Floc-flotation of ultrafine coal slimes achieved by flotation column
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2017ABSTRACTIn this investigation, the floc-flotation performance of ultrafine coal slimes in the large-scale 5500 × 7000 mm cyclonic-static micro-bubble flotation column (FCSMC) was explored. A laser particle size analyzer was used to indicate the changes in particle size distribution with or without adding a flocculant.
Quanzhi Tian +3 more
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Bed hydrodynamics of a new three-phase fluidized bed flotation column with steel ball particles
Minerals Engineering, 2022Jikang Han +6 more
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