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Received June 1, 2007
Accepted August 9, 2007
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Percolation bacterial leaching of low-grade chalcopyrite using acidophilic microorganisms
Karanam Srinivasa Rao†
Amrita Mishra
Devbrata Pradhan
Gautam Roy Chaudhury
Birendra Kumar Mohapatra
Trupti Das
Lala Bihari Sukla
Barada Kanta Mishra
Institute of Minerals & Materials Technology, Bhubaneswar-751013, India
Korean Journal of Chemical Engineering, May 2008, 25(3), 524-530(7), 10.1007/s11814-008-0088-0
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Abstract
Bioleaching studies were carried out in percolation columns using low-grade copper containing rock (granite). The lixiviant consisted of acidified ferric sulfate containing acidophilic microorganisms. The iron oxidizing strain was isolated from Malanjkhand mine water and after adaptation the iron oxidation observed to be 500 mg/L/h. Leaching parameters studied were lixiviant flow rate, particle size and bed height. It was observed that leaching efficiency increased with decrease of particle size and lixiviant flow rate. The precipitation of iron during leaching observed to be low as pH was maintained at 2. Based on the leaching kinetics, a unified rate equation was developed and shown as r'α(dp)-0.61 (F)-0.76 (Hb)0.97.
References
Brierley JA, Brierley CL, Hydrometallurgy, 59, 233 (2001)
Rawlings DE, Dew D, du Plessis C, Biotechnol., 21, 38 (2003)
Bull AT, Korean J. Chem. Eng., 18(2), 137 (2001)
Bustos S, Espejo R, in Randal copper hydrometallurgy roundtable '97, Randal, Lakewood, Co, USA (1998)
Walsh D, Lancaster T, James B, Braaksma M, Readett D, in Randal copper hydrometallurgy roundtable ’97, Randal, Lakewood Co, USA (1998)
Renman R, Jiankang W, Jinghe C, Hydrometallurgy, 83, 77 (2006)
Peterson J, Dixon DG, Hydrometallurgy, 83, 40 (2006)
Peterson J, Dixon DG, Minerals Engineering, 15, 777 (2002)
Acar S, Brierley JA, Wan RY, Hydrometallurgy, 77, 239 (2005)
Ahonen L, Tuovinen OH, Hydrometallurgy, 37, 1 (1995)
de Andrade Lima LRP, Brazillian J. Chem. Eng., 21, 435 (2004)
Leahy MJ, Schwarz MP, Davidson MR, Appl. Math. Model., 30(11), 1428 (2006)
Pantelis G, Ritchie AIM, Appl. Math. Model., 16, 553 (1992)
Lizama HM, Miner. Eng., 17, 23 (2004)
Third KA, Cord-Ruwisch R, Watling HR, Hydrometallurgy, 57, 225 (2000)
Natarajan KA, Iwasaki I, Hydrometallurgy, 10, 329 (1983)
Hansford GS, Vargas T, Hydrometallurgy, 59, 135 (2001)
Vogel AI, A text book of quantitative inorganic analysis, Longmans, London (1961)
Modak JM, Natarajan MK, Mukhopadhyay S, Hydrometallurgy, 42, 51 (1996)
Miller JD, Portillo HQ, in XIII Int. Mineral Process Congr., Warshaw, Poland (1979)
Parker AJ, Paul RL, Power GP, Aust. J. Chem., 34, 13 (1981)
Barriga F, Palencia I, Carranza F, Hydrometallurgy, 19, 159 (1987)
Akcil A, Miner. Eng., 17, 477 (2004)
Rawlings DE, Dew D, du Plessis C, Biotechnol., 21, 38 (2003)
Bull AT, Korean J. Chem. Eng., 18(2), 137 (2001)
Bustos S, Espejo R, in Randal copper hydrometallurgy roundtable '97, Randal, Lakewood, Co, USA (1998)
Walsh D, Lancaster T, James B, Braaksma M, Readett D, in Randal copper hydrometallurgy roundtable ’97, Randal, Lakewood Co, USA (1998)
Renman R, Jiankang W, Jinghe C, Hydrometallurgy, 83, 77 (2006)
Peterson J, Dixon DG, Hydrometallurgy, 83, 40 (2006)
Peterson J, Dixon DG, Minerals Engineering, 15, 777 (2002)
Acar S, Brierley JA, Wan RY, Hydrometallurgy, 77, 239 (2005)
Ahonen L, Tuovinen OH, Hydrometallurgy, 37, 1 (1995)
de Andrade Lima LRP, Brazillian J. Chem. Eng., 21, 435 (2004)
Leahy MJ, Schwarz MP, Davidson MR, Appl. Math. Model., 30(11), 1428 (2006)
Pantelis G, Ritchie AIM, Appl. Math. Model., 16, 553 (1992)
Lizama HM, Miner. Eng., 17, 23 (2004)
Third KA, Cord-Ruwisch R, Watling HR, Hydrometallurgy, 57, 225 (2000)
Natarajan KA, Iwasaki I, Hydrometallurgy, 10, 329 (1983)
Hansford GS, Vargas T, Hydrometallurgy, 59, 135 (2001)
Vogel AI, A text book of quantitative inorganic analysis, Longmans, London (1961)
Modak JM, Natarajan MK, Mukhopadhyay S, Hydrometallurgy, 42, 51 (1996)
Miller JD, Portillo HQ, in XIII Int. Mineral Process Congr., Warshaw, Poland (1979)
Parker AJ, Paul RL, Power GP, Aust. J. Chem., 34, 13 (1981)
Barriga F, Palencia I, Carranza F, Hydrometallurgy, 19, 159 (1987)
Akcil A, Miner. Eng., 17, 477 (2004)
