Biotechnology

As near-surface oxide orebodies are depleted, mines are having to process deeper sulfide ores that are lower in metal grade and metallurgically more complex. Modern technologies that are simple, cost effective and environmentally sound are required for their extraction. In many cases, bioleaching is the most suitable process.

Articles

Here is a selection of technical papers, authored by members of  Mintek’s Biotechnology Division and published in journals and conference proceedings over the past few decades.

HeapStar

Posted on Dec 7, 2011

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2011

Posted on Nov 9, 2011

GERICKE, M. The biosynthesis of anisotropic nanoparticles. Bionanotechnology II: Global Prospects. Reisner, D.E. (ed.). Boca Raton, CRC Press, 2011. GERICKE, M. Review on the role of microbiology in the design and operation of heap bioleaching processes. SAIMM Percolation Leaching: The status globally and in Southern Africa. Johannesburg, The Southern African Institute of Mining and Metallurgy, 2011. GERICKE, M., and GOVENDER, Y. Bioleaching strategies for the treatment of nickel-copper sulphide concentrates. Miner. Eng., vol. 24, iss. 11,...

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2010

Posted on Nov 9, 2011

GERICKE, M., GOVENDER, Y., and PINCHES, A. Tank bioleaching of low-grade chalcopyrite concentrates using redox control. Hydrometallurgy, vol. 104, iss. 3–4, 2010. pp. 414–419. GOVENDER, Y., RIDDIN, T., GERICKE, M., and WHITELEY, C.G. On the enzymatic formation of platinum nanoparticles. J. Nanopart. Res., vol. 12, 2010. pp. 261–271. RIDDIN, T., GERICKE, M., and WHITELEY, C.G. Biological synthesis of platinum nanoparticles: effect of initial metal concentration. Enzyme Microb. Technol., vol. 46, 2010. pp. 501–505. ROBERTSON, S.,...

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2009

Posted on Nov 9, 2011

DINKLA, I.J.T., GERICKE, M., GEURKINK, B.K. and HALLBERG, K.B. Acidianus brierley is the dominant thermoacidophile in a bioleaching community processing chalcopyrite containing concentrates at 70°C. Adv. Mat. Res., vol. 71–73, 2009. pp. 67–70. GERICKE, M., GOVENDER, Y., and PINCHES, A. Advances in tank bioleaching of low-grade chalcopyrite concentrates. Adv. Mater. Res., vol. 71–73, 2009. pp. 361–364. GERICKE, M., NEALE, J.W., and VAN STADEN, P.J. A Mintek perspective of the past 25 years in minerals bioleaching. J. S.Afr. Inst. Min....

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2008

Posted on Nov 9, 2011

GERICKE, M., MULLER, H.H., VAN STADEN, P.J., and PINCHES, A. Development of a tank bioleaching process for the treatment of complex Cu-polymetallic concentrates. Hydrometallurgy, vol. 94, 2008. pp. 23–28. MORIN, D., PINCHES, T., HUISMAN, J., FRIAS, C., NORBERG, A., and FORSSBERG, E. Progress after three years of BioMinE—research and technological development project for a global assessment of biohydrometallurgical processes applied to European non-ferrous metal resources. Hydrometallurgy, vol. 94, 2008. pp. 58–68. VAN STADEN, P.J.,...

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2007

Posted on Nov 9, 2011

GERICKE, M., BENVIE, B., and KRÜGER, L. Biological transformation of kimberlite ores. Adv. Mater. Res., vol. 20–21, 2007. pp. 75–78. VAN STADEN, P.J. Base metals heap leaching applications and process parameters. Base Metals 2007: The Fourth Southern African Conference on Base Metals. Johannesburg, The Southern African Institute of Mining and Metallurgy, 2007. pp. 321–327. ROBERTSON, S.W., and VAN STADEN, P.J. The progression of metallurgical testwork during heap leach design. The SAIMM Southern African Hydrometallurgy Conference 2009....

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2006

Posted on Nov 9, 2011

GERICKE, M., and PINCHES, A. Biological synthesis of metal nanoparticles. Hydrometallurgy, vol. 83, iss. 1–4, 2006. pp. 132–140. GERICKE, M. and PINCHES, A. Microbial production of gold nanoparticles. Gold Bull., vol. 39, no. 1, 2006. pp. 22–28. KOTZE, M.H., GREEN, B.R., NEALE, J.W. and SWANEPOEL, L. Mintek’s re-entry into uranium research and development. ALTA 2006 Uranium. Melbourne, ALTA Hydrometallurgical Services, 2006. 15 pp. MORIN, D., LIPS, A., PINCHES, T., HUISMAN, J., FRIAS, C., NORBERG, A., and FORSSBERG, E. BioMinE –...

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2005

Posted on Nov 9, 2011

GERICKE, M., MULLER, H.H., NEALE, J.W., NORTON, A.E., and CRUNDWELL, F.K. Inoculation of heap-leaching operations. Proceedings of the 16th International Biohydrometallurgy Symposium. Harrison, S.T.L., Rawlings, D.E. and Petersen, J. (eds.). Cape Town, Compress, 2005. pp. 255–264. GERICKE, M., MULLER, H.H., NEALE, J.W., NORTON, A.E. and CRUNDWELL, F.K. Inoculation of heap leaching operations. III International Copper Hydrometallurgy Workshop, HydroCopper 2005. Santiago, 23-25 Nov. 2005. GERICKE, M. and PINCHES, A. Biological synthesis of...

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2003

Posted on Nov 9, 2011

OKIBE, N., GERICKE, M., HALLBERG, K.B., and JOHNSON, D.B. Enumeration and characterization of acidophilic microorganisms isolated from a pilot plant stirred-tank bioleaching operation. Appl. Env. Microbiol., vol. 69, no. 4, 2003. pp. 1936–1943.

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2001

Posted on Nov 9, 2011

GERICKE, M., PINCHES, A., and VAN ROOYEN, J.V. Bioleaching of a chalcopyrite concentrate using an extremely thermophilic culture. Int. J. Min. Process., vol. 62, 2001. pp. 243–255. MILLER, P.C., RHODES, M.K., WINBY, R., PINCHES, A., and VAN STADEN, P.J. Commercialization of bioleaching for base-metal extraction. Mineral biotechnology: microbial aspects of mineral beneficiation, metal extraction, and environmental control. Kawatra, S. K., and Natarajan, K.A. (eds.). Littleton, SME, 2001. pp. 85–100. PINCHES, A., GERICKE, M., and VAN...

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