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.

2000

Posted on Nov 9, 2011

NEALE, J.W., PINCHES, A., and DEEPLAUL, V. Mintek-BacTech’s bacterial-oxidation technology for refractory gold concentrates: Beaconsfield and beyond. SAIMM Colloquium: Bacterial Oxidation for the Recovery of Metals. Johannesburg, SAIMM, 2000. NEALE, J.W., PINCHES, A., and DEEPLAUL, V. Mintek-Bactech’s bacterial oxidation technology for refractory gold concentrates: Beaconsfield and beyond. J. S.Afr. Inst. Min. Metall., vol. 100, no. 7. 2000. pp. 415–421. NYOMBOLO, B.M., NEALE, J.W., and VAN STADEN, P.J. Neutralisation of bioleach...

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1999

Posted on Nov 9, 2011

GERICKE, M., and PINCHES, A. Bioleaching of copper sulphide concentrate using extreme thermophilic bacteria. Min. Eng., vol. 12, no. 8, 1999. pp. 893–904.

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1998

Posted on Nov 9, 2011

RHODES, M., DEEPLAUL, V., and VAN STADEN, P.J. Bacterial oxidation of Mt Lyell concentrates. ALTA 1998 Copper Hydrometallurgy Forum. Brisbane, 19–21 Oct., 1998. 24 pp. SCOTT, P.D., WINBY, R., PINCHES, A., NEALE, J.W., VAN STADEN, P., and KRUGER, P.P. The Mintek/Bactech bioleaching process technology package. ALTA 1998 Copper Hydrometallurgy Forum. Brisbane, 19–21 Oct., 1998. VAN STADEN, P.J. The Mintek/Bactech copper bioleach process. ALTA 1998 Copper Hydrometallurgy Forum. Brisbane, 19–21 Oct.,...

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1997

Posted on Nov 9, 2011

PINCHES, A., NEALE, J.W., VAN STADEN, P.J., and MILLER, P.C. The Mintek-BacTech bioleach process for copper sulphide concentrates. Randol Copper Hydrometallurgy Forum. Vancouver, Oct. 1997.

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1996

Posted on Nov 9, 2011

NEALE, J.W., PINCHES, A., KRUGER, P.P., and VAN STADEN, P.J. Copper bioleaching. ALTA 1996 Copper Hydrometallurgy Forum. Melbourne, ALTA Hydrometallurgical Services, 1996. 27 pp.

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1995

Posted on Nov 9, 2011

ANDREWS, L., and NEALE, J.W. A mineralogical evaluation of arsenate products formed during the bacterial oxidation of gold ores. Centennial Geocongress. Johannesburg, 1995. Extended abstracts, vol. 2, pp. 907–910.

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1994

Posted on Nov 9, 2011

NEALE, J.W., and PINCHES, A. Determination of gas liquid mass-transfer and solids-suspension parameters in mechanically-agitated three-phase slurry reactors. Miner. Eng., vol. 7, no’s. 2/3. 1994. pp. 389–403. PINCHES, A., HUBERTS, R., NEALE, J.W., and DEMPSEY, P. The MINBAC™ bacterial-oxidation process. XVth CMMI Congress. Johannesburg, The Southern African Institute of Mining and Metallurgy, 1994. pp. 377–392.

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1993

Posted on Nov 9, 2011

PINCHES, T., NEALE, J., HUBERTS, R., and DEMPSEY, P. Development of the Mintek bacterial oxidation process (MINBAC). Proceedings of the Randol Gold Forum ‘93. Golden, Randol International Limited, 1993. pp. 221–228a.

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1991

Posted on Nov 9, 2011

CLAASEN, R. The effect of mineralogy on the bacterial oxidation of refractory gold-bearing sulphides from a Barberton deposit. Colloquium: Bacterial Oxidation. Johannesburg, The Southern African Institute of Mining and Metallurgy, 1991. 19 pp. HUBERTS, R., CHILCOTT, A.J., and PINCHES, A. Techno-economic aspects of bacterial oxidation. Colloquium: Bacterial Oxidation. Johannesburg, The Southern African Institute of Mining and Metallurgy, 1991. 19 pp. NEALE, J.W., PINCHES, A., MULLER, H.H., HANNWEG, N.H., and DEMPSEY, P. Long-term bacterial...

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1990

Posted on Nov 9, 2011

DEMPSEY, P., HUMAN, P., PINCHES, A., and NEALE, J.W. Bacterial oxidation at Vaal Reefs. International Deep Mining Conference: Innovations In Metallurgical Plant. Johannesburg, The Southern African Institute of Mining and Metallurgy, 1990. pp. 111–123.

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