Results 231 to 240 of about 537,328 (287)
Some of the next articles are maybe not open access.
Carrying Capacity in Flotation Columns
Minerals Engineering, 1996The equation proposed by Espinosa-Gomez et. al. for the carrying capacity in flotation columns is revised to give better fit to the data. Flotation columns are found to be normally operated around 60% of their maximum carrying capacities.
exaly +2 more sources
2006
Paper is concerning floatability of black coal from Mine Lazy by means of Flotalex, Montanol and PE2 collectors. The goal of the work was verification of floatability of mentioned coal as well as flotation collectors selectivity. The investigation was carried out on class – 0, 5 mm in a column flotation.
Fečko, Peter +3 more
openaire +4 more sources
Paper is concerning floatability of black coal from Mine Lazy by means of Flotalex, Montanol and PE2 collectors. The goal of the work was verification of floatability of mentioned coal as well as flotation collectors selectivity. The investigation was carried out on class – 0, 5 mm in a column flotation.
Fečko, Peter +3 more
openaire +4 more sources
Fine Coal Beneficiation by Column Flotation
Fuel Processing Technology, 2014 The amenability of beneficiating a fine hard coal from Hwa-Sun coal mine using column flotation has been studied using a CoalPro flotation column developed by Canadian Process Technologies (CPT).
Chul-Hyun Park, Byoung-Gon Kim
exaly +3 more sources
International Journal of Mineral Processing, 1989
Abstract Flotation of low grade talc was carried out in a laboratory flotation column with fine air bubbles. Recovery of talc was approximately 83% with a mean residence of 73 s and a whiteness of 84, which was significantly higher than that of a conventional agitation-type flotation cell.
Chang-Joon Kho, Hun-Joon Sohn
openaire +1 more source
Abstract Flotation of low grade talc was carried out in a laboratory flotation column with fine air bubbles. Recovery of talc was approximately 83% with a mean residence of 73 s and a whiteness of 84, which was significantly higher than that of a conventional agitation-type flotation cell.
Chang-Joon Kho, Hun-Joon Sohn
openaire +1 more source
Application of Flotation Column on Flotation of Copper Ore
Advanced Materials Research, 2013Two flotation columns replacing traditional flotation machine and vertical agitate mill were successfully used on copper production in Yangla mine. With introducing of these advanced machines, chalcopyrite with fine dissemination size could be absolutely liberated. In addition, the technological process was further optimized.
Yi Zhang +3 more
openaire +1 more source
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
openaire +2 more sources
Journal of the Taiwan Institute of Chemical Engineers, 2007 In this study, a comparative evaluation was made between column and mechanical flotation cells for fine coal cleaning. In addition, the optimum values of operating parameters were examined, which are important to achieve a desired separation performance ...
Hale Sütcü, Hasan Hacıfazlıoğlu
exaly +2 more sources
Effect of column height on flotation column performance
Mining, Metallurgy & Exploration, 1988The question is posed as to why columns typically have a collection zone 10 m high (H) by 1 m in diameter (D). Three geometry dependent factors are considered: degree of mixing, Np; volumetric bias rate, B; and volumetric gas rate, G. Increasing H:D decreased Np and B, which improves performance but decreases G, which causes the column to approach ...
J. B. Yianatos +4 more
openaire +1 more source
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
openaire +1 more source
An investigation of the flotation mechanism in the aerosol column flotation machine
Russian Journal of Non-Ferrous Metals, 2009It is shown that the induction time decreases as the temperature decreases if there is air bubble adhesion to hydrophobic and hydrophilic particles; if there isn’t, the time decreases where hydrophobic particles stick to one another and increases in the case of adhesion of hydrophilic particles.
S. I. Evdokimov, A. M. Pan’shin
openaire +1 more source