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Received August 3, 2009
Accepted December 16, 2009
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Coal flotation using a biosurfactant from Pseudomonas aeruginosa as a frother
Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran 1Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
fazaelipoor@mail.uk.ac.ir
Korean Journal of Chemical Engineering, September 2010, 27(5), 1527-1531(5), 10.1007/s11814-010-0223-6
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Abstract
A biosurfactant-producing bacterial species (Pseudomonas aeruginosa) was grown in a mineral solution with gas oil as the source of carbon and energy. The biosurfactant was recovered from the solution by collecting the foam on the surface and drying. It had critical micelle concentration of 100 ppm. Froth characterization showed that the biosurfactant was superior to methyl isobutyl carbinol (MIBC) in terms of froth height and stability. The biosurfactant was examined in coal flotation as a frother. The combustible matter recovery of 72-79% with 10-15.5% ash content supporting 55-57.5% separation efficiency seemed promising enough to introduce the biosurfactant from Pseudomonas aeruginosa as a new frother.
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Misra M, Bukka K, Chen S, Miner. Eng., 9(2), 157 (1996)
Nagaoka T, Ohmura N, Saiki H, Appl. Environ. Microbiol., 3588 (1999)
Santhiya D, Subramanian S, Natarajan KA, Rao KH, Hanumantha K, Forssberg KSE, Int. J. Miner. Process., 62, 121 (2001)
Hosseini TR, Kolahdoozan M, Tabatabaei YSM, Oliazedeh M, Noaparast M, Eslami A, Manafi Z, Alfantazi A, Miner. Eng., 18, 371 (2005)
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Amini E, Oliazadeh M, Kolahdoozan M, Miner. Eng., 22, 344 (2009)
Smith RW, Mittinen M, Miner. Eng., 19, 548 (2006)
Natarajan KA, Deo N, Int. J. Miner. Process., 62, 143 (2001)
Misra M, Smith RW, in Mineral bioprocessing, Smith RW, Misra M, Eds., Springer, Berlin (1991)
Zheng X, Arps PJ, Smith RW, Int. J. Miner. Process., 62, 159 (2001)
Mesquita LMS, Lins FF, Torem ML, Int. J. Miner. Process., 71, 31 (2003)
Mortazavi SA, M.Sc.Thesis, Shahid Bahinar University of Kerman (2008)
Bulatovic SM, Handbook of Flotation Reagents, Elsevier, Amsterdam (2007)
Montgomery DD, Design and Analysis of Experiments, John Wiley & Sons (1997)
Desai J, Banat IM, Microbiolo. Mol. Biol. Rev., 61, 47 (1997)
