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

Korean Journal of Chemical Engineering, Vol.25, No.3, 524-530, May, 2008

DOI10.1007/s11814-008-0088-0 Export Citation

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, and Barada Kanta Mishra

Institute of Minerals & Materials Technology, Bhubaneswar-751013, India

E-mail:

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.

Keywords:Bacterial Leaching;Columns;Lixiviant;Thiobacillus ferrooxidans;Particle Size

[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)

[Referenced By]

[1] Brierley JA, Brierley CL, Hydrometallurgy, 59, 233 (2001)

[2] Rawlings DE, Dew D, du Plessis C, Biotechnol., 21, 38 (2003)

[3] Bull AT, Korean J. Chem. Eng., 18(2), 137 (2001)

[4] Bustos S, Espejo R, in Randal copper hydrometallurgy roundtable '97, Randal, Lakewood, Co, USA (1998)

[5] Walsh D, Lancaster T, James B, Braaksma M, Readett D, in Randal copper hydrometallurgy roundtable ’97, Randal, Lakewood Co, USA (1998)

[6] Renman R, Jiankang W, Jinghe C, Hydrometallurgy, 83, 77 (2006)

[7] Peterson J, Dixon DG, Hydrometallurgy, 83, 40 (2006)

[8] Peterson J, Dixon DG, Minerals Engineering, 15, 777 (2002)

[9] Acar S, Brierley JA, Wan RY, Hydrometallurgy, 77, 239 (2005)

[10] Ahonen L, Tuovinen OH, Hydrometallurgy, 37, 1 (1995)

[11] de Andrade Lima LRP, Brazillian J. Chem. Eng., 21, 435 (2004)

[12] Leahy MJ, Schwarz MP, Davidson MR, Appl. Math. Model., 30(11), 1428 (2006)

[13] Pantelis G, Ritchie AIM, Appl. Math. Model., 16, 553 (1992)

[14] Lizama HM, Miner. Eng., 17, 23 (2004)

[15] Third KA, Cord-Ruwisch R, Watling HR, Hydrometallurgy, 57, 225 (2000)

[16] Natarajan KA, Iwasaki I, Hydrometallurgy, 10, 329 (1983)

[17] Hansford GS, Vargas T, Hydrometallurgy, 59, 135 (2001)

[18] Vogel AI, A text book of quantitative inorganic analysis, Longmans, London (1961)

[19] Modak JM, Natarajan MK, Mukhopadhyay S, Hydrometallurgy, 42, 51 (1996)

[20] Miller JD, Portillo HQ, in XIII Int. Mineral Process Congr., Warshaw, Poland (1979)

[21] Parker AJ, Paul RL, Power GP, Aust. J. Chem., 34, 13 (1981)

[22] Barriga F, Palencia I, Carranza F, Hydrometallurgy, 19, 159 (1987)

[23] Akcil A, Miner. Eng., 17, 477 (2004)