Professor Malcolm Powell

Professorial Research Fellow

Sustainable Minerals Institute
malcolm.powell@uq.edu.au
+61 7 336 55893

Overview

Research Interests

  • Flexible circuits
    “FlexiCircuits leverage ore variability to maximise resource utilisation”. The focus of flexible circuits is to investigate processing options that provide extra capacity through sophistication rather than scale. This requires a combination of smart ore characterisation, economic modelling and innovative processing plant design. Flexible mineral processing circuits can respond to variations in feed characteristics (competence, size distribution, grade and deleterious components) and processing requirements by varying the processing route in order to maximise recovery within energy usage limitations. The application is via utilising today’s equipment while enabling the uptake of tomorrows technology.
  • Applying fundamental research to applied outputs
    Applied outputs are based on the development of mechanistically correct but practical and robust process models. Interests cover: mill liner design; SAG mill modelling and control; the unified comminution model (UCM); ore characterisation for multi-component modelling; applied comminution process review, modelling and improvement.

Qualifications

  • PhD, Cape Town
  • Bachelor of Science, University of KwaZulu-Natal

Publications

  • Li, Xilin, Powell, Malcolm and Horberry, Tim (2012) Human factors in control room operations in mineral processing: Elevating control from reactive to proactive. Journal of Cognitive Engineering and Decision Making, 6 1: 88-111. doi:10.1177/1555343411432340

  • Powell, M. S. and Mainza, A. N. (2012). Step change - a staircase rather than a giant leap. In: XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (4259-4268). 24-28 September 2012.

  • Bird, Matt, Powell, Malcolm, Robertson, Jason, Hilden, Marko and Franke, Jochen (2011). Adapting mill control to account for liner wear on the Cadia 40ft mill.. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (). 25-28 September, 2011.

  • Weerasekara, Nirmal, Powell, Malcolm, Franke, J. and Favier, J. (2011). Integrating liner profile evolution and mill performance with 3D DEM modelling. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver, BC, Canada, (1-15). 25-28 September, 2011.

  • Powell, Malcolm, Benzer, Hakan and Mainza, Aubrey (2011). The strengths of SAG and HPGR in flexible circuit designs. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-16). 25-28 September, 2011.

  • Weerasekara, Nirmal and Powell, Malcolm (2010). Exploring the breakage environment in mills with discrete element methods. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (1357-1365). 6-10 September, 2010.

  • Powell, M. S., van der Westhuizen, A. P. and Mainza, A. N. (2009) Applying grinding curves to mill operation and optimisation. Minerals Engineering, 22 7-8: 625-632. doi:10.1016/j.mineng.2009.01.008

  • Powell, M. and Bye, A. (2009). Beyond mine-to-mill: Circuit design for energy efficient resource utilisation.. In: Tenth Mill Operators' Conference Proceedings. Tenth Mill Operators' Conference, Adelaide, SA, (357-364). 12-14 October, 2009.

  • Powell, M. S. and Morrison, R. D. (2007) The future of comminution modelling. International Journal of Mineral Processing, 84 1-4: 228-239. doi:10.1016/j.minpro.2006.08.003

  • Powell, M. S. and Valery, W. (2006). Slurry pooling and transport issues in SAG mills. In: Michael J. Allen et.al., Proceedings International autogenous and semiautogenous grinding technology. International autogenous and semiautogenous grinding technology, Vancouver, Canada, (133-152). 24-27 September, 2006.

  • Govender, I., McBride, A. T. and Powell, M. S. (2004) Improved experimental tracking techniques for validating discrete element method simulations of tumbling mills. Experimental Mechanics, 44 6: 593-607. doi:10.1177/0014485104048333

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Grants

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Supervision

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Publications

Featured Publications

  • Li, Xilin, Powell, Malcolm and Horberry, Tim (2012) Human factors in control room operations in mineral processing: Elevating control from reactive to proactive. Journal of Cognitive Engineering and Decision Making, 6 1: 88-111. doi:10.1177/1555343411432340

  • Powell, M. S. and Mainza, A. N. (2012). Step change - a staircase rather than a giant leap. In: XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (4259-4268). 24-28 September 2012.

  • Bird, Matt, Powell, Malcolm, Robertson, Jason, Hilden, Marko and Franke, Jochen (2011). Adapting mill control to account for liner wear on the Cadia 40ft mill.. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (). 25-28 September, 2011.

  • Weerasekara, Nirmal, Powell, Malcolm, Franke, J. and Favier, J. (2011). Integrating liner profile evolution and mill performance with 3D DEM modelling. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver, BC, Canada, (1-15). 25-28 September, 2011.

  • Powell, Malcolm, Benzer, Hakan and Mainza, Aubrey (2011). The strengths of SAG and HPGR in flexible circuit designs. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-16). 25-28 September, 2011.

  • Weerasekara, Nirmal and Powell, Malcolm (2010). Exploring the breakage environment in mills with discrete element methods. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (1357-1365). 6-10 September, 2010.

  • Powell, M. S., van der Westhuizen, A. P. and Mainza, A. N. (2009) Applying grinding curves to mill operation and optimisation. Minerals Engineering, 22 7-8: 625-632. doi:10.1016/j.mineng.2009.01.008

  • Powell, M. and Bye, A. (2009). Beyond mine-to-mill: Circuit design for energy efficient resource utilisation.. In: Tenth Mill Operators' Conference Proceedings. Tenth Mill Operators' Conference, Adelaide, SA, (357-364). 12-14 October, 2009.

  • Powell, M. S. and Morrison, R. D. (2007) The future of comminution modelling. International Journal of Mineral Processing, 84 1-4: 228-239. doi:10.1016/j.minpro.2006.08.003

  • Powell, M. S. and Valery, W. (2006). Slurry pooling and transport issues in SAG mills. In: Michael J. Allen et.al., Proceedings International autogenous and semiautogenous grinding technology. International autogenous and semiautogenous grinding technology, Vancouver, Canada, (133-152). 24-27 September, 2006.

  • Govender, I., McBride, A. T. and Powell, M. S. (2004) Improved experimental tracking techniques for validating discrete element method simulations of tumbling mills. Experimental Mechanics, 44 6: 593-607. doi:10.1177/0014485104048333

Book Chapter

  • Powell, M. S., Smit, I., Radsizewski, P., Cleary, P., Rattray, B., Eriksson, K. and Schaeffer, L. (2006). The selection and design of mill liners. In Kawatra, S . Komar (Ed.), Advances in Comminution (pp. 331-376) Littleton, CO: Society for Mining, Metallurgy & Exploration.

Journal Article

Conference Publication

  • Ballantyne, Grant R., Powell, M. S., Clarke, N., Di Trento, M., Kock, F. and Putland, B. (2016). Energy curve case study (AngloGold Ashanti). In: 2016 SME Annual Meeting & Exhibit (SME 2016), Phoenix, Arizona, (). 2016.

  • Ballantyne, Grant, Powell, M. S. and Radziszewski, P. (2016). Extension of the comminution energy curves and application to stirred milling performance. In: CMP 2016: Canadian Mineral Processing (CMP) Conference. Canadian Mineral Processing (CMP) Conference, Ottawa, Ontario, Canada, (). 19-21 January 2016.

  • Saeidi, Fatemeh, Yahyaei, Mohsen, Powell, Malcolm and Marcelo Tavares, Luis (2016). Understanding single particle breakage event to evaluate the effect of applied strain rate. In: IMPC 2016 Conference Proceedings. XXVIII International Mineral Processing Congress Proceedings, Quebec City, Quebec, Canada, (). 11-15 September 2016.

  • Ballantyne, G. R. and Powell, M. S. (2016). Using the comminution energy curves to assess equipment performance. In: Comminution '16: 10th International Comminution Symposium, Capetown, South Africa, (). 11-14 April 2016.

  • Yahyaei, M., Weerasekara, N. and Powell, M. (2015). A study of the effect of particle size on surface breakage in a pilot mill. In: Magnus Evertsson, Erik Hulthén and Johannes Quist, Proceedings of the 14th European Symposium on Comminution and Classification. 14th European Symposium on Comminution and Classification, Gothenburg, Sweden, (212-216). 7-10 September 2015.

  • G. R. Ballantyne, N. Clarke, P. Elms, A. Anyimadu and M. S. Powell (2015). Application of research principles to identify process improvement at Sunrise Dam Gold Mine. In: Proceedings MetPlant 2015. MetPlant 2015: Plant Design & Operating Strategies - World's Best Practice, Perth, Australia, (221-229). 7-8 September, 2015.

  • Ballantyne, G. R. and Powell, M. S. (2015). Development of the comminution 'energy curve'. In: 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology. 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, Canada, (). 20 - 24 September, 2015.

  • Powell, Malcolm S., Mainza, Aubrey N., Hilden, Marko H. and Yahyaei, Mohsen (2015). Full pre-crush to sag mills – the case for changing this practice. In: Bern Klein, Kelly McLeod, Reem Roufail and Fisher Wang, International Conference on Semi-Autogenous and High Pressure Grinding Technology 2015. The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, BC, Canada, (1-22). 20-24 September 2015.

  • Ballantyne, Grant R., Foggiatto, B., Carrasco, C., Hilden, M. and Powell, M. S. (2015). Improving SAG mill performance and controllability by leveraging the modified size distributions from Grade Engineering®. In: Bern Klein, Kelly McLeod, Reem Roufail and Fisher Wang, International Conference on Semi-Autogenous and High Pressure Grinding Technology 2015. 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, BC, Canada, (). 20-24 September 2015.

  • Yahyaei, Mohsen, Limpus, Andrew, Russell, John, Toor, Paul and Powell, Malcolm (2015). Improving liner design for efficiency. In: Bern Klein, Kelly McLeod, Reem Roufail and Fisher Wang, International Conference on Semi-Autogenous and High Pressure Grinding Technology 2015. The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, BC, Canada, (1-15). 20-24 September 2015.

  • Masuret, C., Yahyaei, M., Weerasekara, N. and Powell, M. (2015). Measuring shear abrasion breakage of rocks using a novel characterisation experiment. In: Magnus Evertsson, Erik Hulthén and Johannes Quist, Proceedings of the 14th European Symposium on Comminution and Classification. 14th European Symposium on Comminution and Classification, Gothenburg, Sweden, (81-86). 7-10 September 2015.

  • Saeidi, Fatemeh, Marcelo Tavares, Luis, Yahyaei, Mohsen and Powell, Malcolm (2015). Modelling single particle breakage as a multi-stage process. In: Magnus Evertsson, Erik Hulthén and Johannes Quist, Proceedings of the 14th European Symposium on Comminution and Classification. 14th European Symposium on Comminution and Classification, Gothenburg, Sweden, (47-52). 7-10 September 2015.

  • Bonfils, Benjamin, Powell, Malcolm and Tello, Sebastian (2015). Simulations of expansion scenarios of a standard SABC circuit. In: International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, Canada, (). 20-24 September 2015.

  • Engelhardt, Dieter, Seppelt, Joe, Waters, Tom, Apfelt, Andy, Lane, Greg, Yahyaei, Mohsen and Powell, Malcolm (2015). The Cadia Hpgr-Sag Circuit – from design to operation – the commissioning challenge. In: Bern Klein, Kelly McLeod, Reem Roufail and Fisher Wang, International Conference on Semi-Autogenous and High Pressure Grinding Technology 2015. The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology, Vancouver, BC, Canada, (1-18). 20-24 September 2015.

  • Toor, Paul, Powell, Malcolm, Hilden, Marko and Weerasekara, Nirmal (2015). Understanding the effects of liner wear on SAG mill performance. In: David Pollard, Geoff Dunlop and Peter Cameron, Plant Design and Operation Strategies - World's Best Practice. MetPlant 2015, Perth, Australia, (150-161). 7-8 September 2015.

  • G. R. Ballantyne, A. Mainza and M. S. Powell (2015). Using comminution energy intensity curves to assess efficiency of gold processing circuits. In: World Gold 2015, Johannesburg, South Africa, (). 29 September - 1 October, 2015.

  • Foggiatto, B., Hilden, M. M. and Powell, M. (2014). Advances in the simulation of flexible circuits. In: 12th AusImm Mill Operators' Conference 2014: Proceedings. 12th AusIMM Mill Operators' Conference 2014, Townsville, Australia, (391-398). 1-3 September 2014.

  • Ballantyne, G. R. and Powell, M. S. (2014). Benchmarking comminution energy consumption for improved efficiency. In: 12th AusImm Mill Operators' Conference 2014: Proceedings. 12th AusIMM Mill Operators' Conference 2014, Townsville, Australia, (95-99). 1-3 September 2014.

  • Liu, L. X., Saeidi, F. and Powell, M. S. (2014). Breakage characterization of multicomponent ore. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Engelhardt, D., Lane, G. and Powell, M. (2014). Cadia expansion - the impact of installing high pressure grinding rolls prior to a semi-autogenous grinding mill. In: 12th AusImm Mill Operators' Conference 2014: Proceedings. 12th AusIMM Mill Operators' Conference 2014, Townsville, Australia, (233-240). 1-3 September 2014.

  • Yahyaei, M., Vos, F., Powell, M., Siliezar, J. and Perkins, T. (2014). Challenges in developing integrated process models based on industrial survey data. In: 12th AusImm Mill Operators' Conference 2014: Proceedings. 12th AusIMM Mill Operators' Conference 2014, Townsville, Australia, (437-446). 1-3 September 2014.

  • Francioli, Daniel, Yahyaei, Mohsen, Taveres, Luis Marcelo and Powell, Malcolm (2014). Characterizing attrition of rock under incremental low- energy impacts. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (63-71). 20-24 October 2014.

  • Ballantyne, G. R., Shi, F., Bonfils, B. and Powell, M. S. (2014). Comparison of single particle, Bond and bed tests for fine particle ore breakage characterisation. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Yu, Ping, Xie, Weiguo, Liu, Lian and Powell, Malcolm (2014). Development of a dynamic mill model structure for tumbling mills. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (41-51). 20-24 October 2014.

  • Yahyaei, Mohsen, Weerasekara, Nirmal and Powell, Malcolm (2014). Impact of mill size on low-energy surface damage. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (53-62). 20-24 October 2014.

  • Weerasekara, Nirmal, Yahyaei, Mohsen and Powell, Malcolm (2014). Interpreting low energy attrition behaviour in a pilot mill using numerical modelling. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago Chile, (117-124). 20-24 October 2014.

  • Shi, Feng N., Weiguo Xie and Powell, Malcolm (2014). Modelling particle size reduction in a batch grinding ball mill. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Saeidi, Fatemeh, Yahyaei, Mohsen and Powell, Malcolm (2014). New insights into comparison of breakage testing techniques. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (124-135). 20-24 October 2014.

  • Powell, Malcolm, Foggiatto, Bianca and Hilden, Marko (2014). Practical simulation of FlexiCircuit processing options. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (219-228). 20-24 October 2014.

  • Morrison, R. D., Powell, M., Cleary, P. W., Delaney, G. W., Cummins, S. and Loveday, B. (2014). Predicting the evolution of rock size distribution, throughput and product size in AG and SAG mills by incremental damage, chipping, rounding and abrasion. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Liu, L. X., Palaniandy, S. and Powell, M. S. (2014). Technical gaps and challenges for fine grinding. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Powell, Malcolm, Hilden, Marko, Ballantyne, Grant, Liu, Lian and Tavares, Luis Marcelo (2014). The appropriate and inappropriate application of the JKMRC t10 relationship. In: Juan Yianatos, XXVIl International Mineral Processing Congress - IMPC 2014: Conference Proceedings. XXVII International Mineral Processing Congress - IMPC 2014, Santiago, Chile, (133-144). 20-24 October 2014.

  • Palaniandy, S., Powell, M., Hilden, M., Allen, J., Kermanshahi, K., Oats, B. and Lollback, M. (2014). VertiMill®: preparing the feed within floatable regime at lower specific energy. In: Comminution '14: 9th International Comminution Symposium, Cape Town, South Africa, (). 7-10 April, 2014.

  • Palaniandy, S., Powell, M. S., Hilden, M. M., Allen, J., Kermanshahi, K., Oats, B. and Lollback, M. (2014). Vertimill® performance updates in secondary and regrind duties at Cannington Mine, BHP Billiton.. In: 12th AusImm Mill Operators' Conference 2014: Proceedings. 12th AusIMM Mill Operators' Conference 2014, Townsville, Australia, (263-271). 1-3 September 2014.

  • Yahyaei, Mohsen, Weerasekara, Nirmal and Powell, Malcolm (2013). Characterisation of abrasion breakage using multi size pilot mills. In: A. Kwade, S. Breitung-Faes and D. Steiner, ESCC 2013: European Symposium on Comminution and Classification. 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (229-232). 9-12 September 2013.

  • Bonfils, B. and Powell, M. S. (2013). Developments in incremental rock breakage testing methodologies and modelling. In: Arno Kwade, Sandra Breitung-Faes and Denise Steiner, Conference Proceedings: European Symposium on Comminution & Classification. ESCC2013: 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (165-168). 9-12 September, 2013.

  • Powell, Malcolm (2013). Facing the challenges of new low-grade orebodies with new economic circuit designs. In: II International Meeting on Metallurgy Peru 2013: Plants and Processes, Lima, Peru, (). 1-3 November, 2013.

  • Weerasekara, N. S. and Powell, M. S. (2013). Performance characterisation of AG/SAG mill pulp lifters using CFD techniques. In: Proceedings of Computational Modelling '13. Computational Modelling '13, Falmouth, Cornwall, U.K., (). 18-19 June, 2013.

  • Powell, M. S. (2013). Pushing the boundaries of comminution with mechanistic modelling and multi-component process simulation. In: Arno Kwade, Sandra Breitung-Faes and Denise Steiner, Conference Proceedings: European Symposium on Comminution & Classification. ESCC2013: 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (30-34). 9-12 September, 2013.

  • Ballantyne, G. R., Yang, A. L., Powell, M. S. and Peukert, W. (2013). Size specific energy (SSE): energy required to generate minus 75 micron material. In: Arno Kwade, Sandra Breitung-Faes and Denise Steiner, Conference Proceedings: European Symposium on Comminution & Classification. ESCC2013: 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (349-352). 9-12 September, 2013.

  • Hilden, M., Stange, W., Powell, M. S. and Andrusiewicz, M. (2013). The future developments in circuit simulation capability at the JKMRC. In: Arno Kwade, Sandra Breitung-Faes and Denise Steiner, Conference Proceedings: European Symposium on Comminution & Classification. ESCC2013: 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (411-411). 9-12 September, 2013.

  • Mainza, A., Evertsson, M., Benzer, H., Tavarese, M., Powell, M. S., Rule, C., Plint, N., Lombard, M. and Knopjes, B. (2013). The role of classification in an evolving comminution circuit. In: Arno Kwade, Sandra Breitung-Faes and Denise Steiner, Conference Proceedings: European Symposium on Comminution & Classification. ESCC2013: 13th European Symposium on Comminution and Classification, Braunschweig, Germany, (67-71). 9-12 September, 2013.

  • Powell, M. S. (2013). Utilising orebody knowledge to improve comminution circuit design and energy utilisation. In: Simon Dominy, Proceedings: The Second AusIMM International Geometallurgy Conference (GeoMet) 2013. GeoMet 2013: The Second AusIMM International Geometallurgy Conference, Brisbane, QLD, Australia, (27-35). 30 September-2 October, 2013.

  • Palaniandy, S., Powell, M., Hilden, M., Kermanshahi, K., Allen, J. and Mwansa, S. (2013). VertiMill® - development of circuit survey and performance evaluation protocols. In: David Pollard and Geoff Dunlop, MetPlant 2013: Metallurgical Plant Design and Operating Strategies-World's Best Practice. Metallurgical Plant Design and Operating Strategies (MetPlant 2013), Perth, WA, Australia, (162-175). 15-17 July 2013.

  • Powell, M. S., Hilden, M. M., Weerasekara, N., Yahyaei, M., Toor, P., Franke, J. and Bird, M. (2012). A more holistic view of mill liner management. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart, Tasmania, (95-104). 29-31 October 2012.

  • Tuazon, D., Corder, G. D., Powell, M. and Ziemski, M. (2012). A practical and rigorous approach for integrating sustainability principles into decision-making processes at minerals processing operations. In: David R. Mulligan, Life-of-Mine 2012: Conference Proceedings. Life of Mine Conference (AusIMM), Brisbane, QLD, Australia, (233-241). 10 - 12 July 2012.

  • Bbosa, L., Govender, I., Mainza, A., Powell, M. and Plint, N. (2012). Comparing power draw predictions in experimental scale tumbling mills using PEPT and DEM. In: Pradip (Conference President), XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (2750-2760). 24-28 September 2012.

  • Toor, P., Franke, J., Powell, Malcolm, Bird, M. and Waters, T. (2012). Designing liners for performance not life. In: Comminution '12: 8th International Comminution Symposium, Cape Town, South Africa, (). 17-20 April 2012.

  • Yildirim, Baris, Bradshaw, D., Powell, M. S. and Clark, A. (2012). Development of an effective and practical alteration index for predicting metallurgical responses of Cu porphyries. In: Process Mineralogy '12: Proceedings. Process Mineralogy '12, Cape Town, South Africa, (). 7-9 November 2012.

  • Ballantyne, Grant, Hilden, Marko and Powell, Malcolm (2012). Early rejection of gangue - How much energy will it cost to save energy?. In: Comminution '12: 8th International Comminution Symposium, Cape Town, South Africa, (). 17-20 April 2012.

  • Bueno, M. P. and Powell, M. S. (2012). How to use hard ore components as grinding media. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart,Tasmania, (31-35). 29-31 October 2012.

  • Powell, M. S., Hilden, M. M., Evertsson, C. M., Asbjornsson, G., Benzer, A. H., Mainza, A. N., Tavares, L. M., Davis, B., Plint, N. and Rule, C. (2012). Optimisation opputunities for high pressure grinding rolls circuits. In: Peter Hill (Conference Chair), Proceedigs: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart,Tasmania, (81-94). 29-31 October 2012.

  • Ballantyne, G. R., Powell, M. S. and Tiang, M. (2012). Proportion of energy attributable to comminution. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart, Tasmania, (25-30). 29-31 October 2012.

  • Foggiatto, B., Hilden, M. M., Powell, M. S., Kay, P. D. and Andrusiewicz, M. (2012). Simulation of flexible circuits. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart, Tasmania, (291-298). 29-31 October 2012.

  • Powell, M. S. and Mainza, A. N. (2012). Step change - a staircase rather than a giant leap. In: XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (4259-4268). 24-28 September 2012.

  • Li, X., Powell, M. S. and McKeague, W. (2012). Unlocking processing potential by empowering our operators. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart, Tasmania, (333-340). 29-31 October 2012.

  • Kojovic, T., Hilden, M. M., Powell, M. S. and Bailey, C. (2012). Updated Julius Kruttschnitt semi-autogenous grinding mill model. In: Peter Hills (Conference Chair), Proceedings: 11th AusIMM Mill Operators' Conference 2012. 11th AusIMM Mill Operators' Conference 2012, Hobart, Victoria, (71-79). 29-31 October 2012.

  • Tuazon, D., Corder, G., Powell, M. and Ziemski, M. (2011). A practical and rigorous approach for the integration of sustainability principles into the decision-making processes at minerals processing operations. In: Fifth International Conference for Sustainable Development in the Minerals Industry 2011, Aachen, Germany, (). 14-17 June 2011.

  • Tuazon, D., Corder, G., Powell, M. and Ziemski, M. (2011). A practical and rigorous approach for the integration of sustainability principles into the decision-making processes at minerals processing operations. In: Sustainability through Resource Conservation and Recycling 2011, Falmouth, Cornwall, United Kingdom, (). 10-12 May 2011.

  • Bird, Matt, Powell, Malcolm, Robertson, Jason, Hilden, Marko and Franke, Jochen (2011). Adapting mill control to account for liner wear on the Cadia 40ft mill.. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (). 25-28 September, 2011.

  • Engelhardt, Dieter, Robertson, Jason, Lane, Greg, Powell, Malcolm and Griffin, Paul (2011). Cadia expansion - from Open Pit to Block Cave and beyond. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-25). 25-28 September, 2011.

  • Powell, Malcolm, Perkins, Tom and Mainza, Aubrey (2011). Grindcurves applied to a range of SAG and AG mills. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-20). 25-28 September, 2011.

  • Dundar, H., Benzer, H., Aydogan, N. A., Powell, Malcolm and Mainza, A. N. (2011). Importance of the feed size distribution and recycle on the HPGR performance. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-20). 25-28 September, 2011.

  • Weerasekara, Nirmal, Powell, Malcolm, Franke, J. and Favier, J. (2011). Integrating liner profile evolution and mill performance with 3D DEM modelling. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver, BC, Canada, (1-15). 25-28 September, 2011.

  • Bueno, Marcos, Niva, Erik, Henriksson, Marcus, Philips, Doug, Powell, Malcolm, Kojovic, Toni, Shi, Feng N., Durant, Braam and Plint, Neville (2011). Multi-component autogenous pilot trials. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-17). 25-28 September, 2011.

  • Toor, Paul, Franke, Jochen, Powell, Malcolm, Perkins, Thomas, Bird, Matt and Robertson, Jason (2011). Quantifying the influence of liner shape and mill filling for performance optimization. In: K. Major, B.C. Flintoff, B. Klein and K. McLeod, SAG 2011 Conference. Fifth International Conference on Autogenous & Semiautogeneous Grinding Technology, Vancouver, Canada, (). 25-28 September 2011.

  • van Drunick, W. I., Wilhelm, H., Smit, I. and Powell, Malcolm (2011). The Navachab optimisation history: Exceeding SAG performance benchmarks.. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-9). 25-28 September, 2011.

  • Bueno, Marcos, Powell, Malcolm, Kojovic, Toni, Worth, Jonathan, Shi, Feng N., Niva, E., Adolfsson, G., Henriksson, M., Partapuoli, A., Wikstrom, P., Tano, K. and Fredriksson, A. (2011). The dominance of the competent. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-20). 25-28 September, 2011.

  • Chandramohan, R., Powell, Malcolm, Holtham, Peter N., Lane, G. and Daniel, M. J. (2011). The effect of blends of rock shape in AG/SAG mills and comminution circuits. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver, B.C. Canada, (1-15). 25-28 September 2011.

  • Toor, P., Perkins, T., Powell, M. S. and Franke, J. (2011). The influence of liner wear on milling efficiency. In: David Pollard and Geoff Dunlop, MetPlant 2011 Plant Design and Operating Strategies - World's Best Practice. MetPlant 2011, Perth, Australia, (193-212). 8-9 August 2011.

  • Powell, Malcolm, Benzer, Hakan and Mainza, Aubrey (2011). The strengths of SAG and HPGR in flexible circuit designs. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-16). 25-28 September, 2011.

  • Powell, Malcolm, Benzer, Hakan, Mainza, Aubrey, Evertsson, Magnus, Tavares, Marcelo, van Drunick, Wayne, Potgieter, Mani, Davis, Barry, Plint, Neville and Rule, Chris (2011). Transforming the effectiveness of the HPGR circuit at Anglo Platinum Mogalakwena. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-23). 25-28 September, 2011.

  • Kojovic, Toni, Powell, Malcolm, Bailey, Chris and Drinkwater, Diana (2011). Upgrading the JK SAG mill model. In: Major, K., Flintoff, B.C., Klein, B. and McLeod, K., SAG 2011. International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Rolls Technology 2011, Vancouver BC, Canada, (1-20). 25-28 September, 2011.

  • Powell, Malcolm and Weerasekara, Nirmal (2010). Building the unified comminution model. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (1133-1141). 6-10 September, 2010.

  • Weerasekara, Nirmal and Powell, Malcolm (2010). Exploring the breakage environment in mills with discrete element methods. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (1357-1365). 6-10 September, 2010.

  • Li, Xilin, Horberry, Tim and Powell, Malcolm (2010). Human control in mineral processing plants: An operator centered investigation. In: Human Factors and Ergonomics Society, Proceedings of the Human Factors and Ergonomics Society. Human Factors and Ergnonomics Society 54th ANNUAL MEETING - 2010, San Francisco, CA, U.S.A, (284-288). 27 September - 1 October 2010. doi:10.1518/107118110X12829369201151

  • Bueno, Marcos, Shi, Feng N., Kojovic, Toni and Powell, Malcolm (2010). Investigation on multicomponent semi-autogenous grinding. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (611-618). 6-10 September, 2010.

  • Weerasekara, N. S., Powell, M. S., Cole, S. and Favier, J. (2010). Modeling breakage environment in tumbling mills using DEM and analyzing the outputs. In: Antonio Munjiza, Discrete Element Methods - Simulation and discontinua: Theory and applications. DEM5: The Fifth International Conference on Discrete Element Methods, University of London, (477-483). 25-26 August, 2010.

  • Buffler, A., Govender, I., Cilliers, J. J., Parker, D. J., Franzidis, J.-P., Mainza, A., Newman, R.T., Powell, M. and Van Der Westhuizen, A. (2010). PEPT Cape Town: A new positron emission particle tracking facility at iThemba LABS. In: Proceedings of International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators. IAEA International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators, Vienna, (). 4-8 May 2009.

  • Chandramohan, Rajiv, Holtham, Peter N. and Powell, Malcolm (2010). The influence of particle shape in rock fracture. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (3163-3171). 6-10 September, 2010.

  • Govender, I., Morrison, A. J., Mainza, A., van der Westuizen, A., Franzidis, J.-P. and Powell, Malcolm (2010). Using positron emission particle tracking (PEPT) to investigate industrial systems. In: XXV International Mineral Processing Congress - IMPC 2010 "Smarter processing for the future". International Mineral Processing Congress 2010, Brisbane, QLD, Australia, (2843-2853). 6-10 September 2010.

  • Powell, M. and Bye, A. (2009). Beyond mine-to-mill: Circuit design for energy efficient resource utilisation.. In: Tenth Mill Operators' Conference Proceedings. Tenth Mill Operators' Conference, Adelaide, SA, (357-364). 12-14 October, 2009.

  • de Kretser, R. G., Powell, M., Scales, P. J. and Lim, J. (2009). The water efficient plant of the future: Towards a holistic process chain approach.. In: Water in Mining 2009 - Proceedings. WIM 2009, Perth, WA, (65-70). 15-17 September, 2009.

  • Condori, P., Mainza, A., Govender, I. and Powell, M. S. (2008). A Mechanistic Approach to Modelling Slurry Transport in AG/SAG Mills: Transport through the Charge. In: D. Z. Wang, C. Y. Sun, F. L. Wang, L. C. Zhang and L. Han, Proceedings of XXIV International Mineral Processing Congress. XXIV International Mineral Processing Congress (XXIV IMPC), Beijing, China, (384-391). 24-28 September 2008.

  • Bbosa, L. S., Mainza, A. N. and Powell, M. S. (2008). Analysis of the breakage data of a series of devices. In: D. Z. Wang, C. Y. Sun, F. L. Wang, L. C. Zhang and L. Han, Proceedings of XXIV International Mineral Processing Congress. XXIV International Mineral Processing Congress (XXIV IMPC), Beijing, China, (519-528). 24-28 September, 2008.

  • Powell, M., Weerasekara, N., Govender, I. and Khanal, M. (2008). Applying DEM outputs to the unified comminution model. In: CSRP'08: Delivering Sustainable Solutions to the Minerals and Metals Industries: 2nd Annual Conference. Centre for Sustainable Resource Processing 2nd Annual Conference (CSRP'08), Brisbane, Australia, (33-34). 18-19 November 2008.

  • Powell, M. S., Govender, I. and McBride, A. T. (2008). Applying DEM outputs to the unified comminution model. In: Minerals Engineering: Discrete Element Methods (DEM) ’07, Selected papers from Discrete Element Methods (DEM) ’07. Discrete Element Methods (DEM) 07, Brisbane, Qld, Australia, (744-750). 27-29 August, 2007. doi:10.1016/j.mineng.2008.06.010

  • Cleary, P. W., Powell, M. S. and Morrison, R. D. (2008). Applying computationally intensive techniques to modelling of comminution devices. In: D. Z. Wang, C. Y. Sun, F. L. Wang, L. C. Zhang and L. Han, Proceedings of XXIV International Mineral Processing Congress. XXIV International Mineral Processing Congress (XXIV IMPC), Beijing, China, (1955-1963). 24-28 September 2008.

  • Powell, M., Govender, I. and McBride, A. T. (2008). Challenges in applying the unified comminution model. In: D. Z. Wang, C. Y. Sun, F. L. Wang, L. C. Zhang and L. Han, Proceedings of the XXIV International Mineral Processing Congress. XXIV International Mineral Processing Congress (XXIV IMPC), Beijing, China, (367-376). 24-28 September, 2008.

  • Powell, M., Weerasekara, N., Khanal, M. and Favier, J. (2008). Extraction of DEM collision data for input to breakage models. In: Comminution 08, Falmouth, Cornwall, U.K., (). 17-20 June, 2008.

  • Hilden, M. and Powell, M. (2008). Multiple-pass high pressure grinding rolls circuits. In: CSRP'08: Delivering Sustainable Solutions to the Minerals and Metals Industries: 2nd Annual Conference. Centre for Sustainable Resource Processing 2nd Annual Conference (CSRP'08), Brisbane, Australia, (41-42). 18-19 November 2008.

  • Mainza, A. N. and Powell, M. S. (2008). Study of the efficiency of mineral department in the three product cyclone. In: D. Z. Wang, C. Y. Sun, F. L. Wang, L. C. Zhang and L. Han, Proceedings of the XXIV International Mineral Processing Congress. XXIV International Mineral Processing Congress (XXIV IMPC), Beijing, China, (774-782). 24-28 September, 2008.

  • Weerasekara, N. and Powell, M. (2008). The new energy logging from the discrete element method. In: CSRP'08: Delivering Sustainable Solutions to the Minerals and Metals Industries: 2nd Annual Conference. Centre for Sustainable Resource Processing 2nd Annual Conference (CSRP'08), Brisbane, Australia, (51-52). 18-19 November 2008.

  • Govender, I, and Powell, M. S. (2007). A 3D X-ray Vision System for Studying Discrete Particulate Behaviour. In: Proceedings of Discrete Element Methods 07. Discrete Element Methods 07, Brisbane, Australia, (). 27-29 August, 2007.

  • Govender, I, Powell, M S, Chandramohan, R, Parker, D J, Fan, X and Ingram, A (2007). Positron emission particle tracking of charge particles in a scaled industrial tumbling mill. In: Proceedings of Discrete Elements Methods 07, Brisbane, (). Aug 27-29, 2007.

  • McBride, A.T. and Powell, M.S. (2007). Using DEM to inform experimental design. In: The Proceedings of Discrete Element Methods Conference. Discrete Element Methods, Brisbane, Australia, (). 27-29 August, 2007.

  • Condori, P. and Powell, M.S. (2006). A Proposed Mechanistic slurry discharge model for AG/SAG mills. In: Mular and et al, Proceedings of the International Conference on Autogenous and semi-Autogenous Grinding Technology. International autogenous and semiautogenous grinding technology, Vancouver, Canada, (421-435). 23-27 September, 2006.

  • Powell, Malcolm S. and Morrison, Rob D. (2006). A new look at breakage testing. In: H. Kalman and et.al. (Organising Committee), 11th European Symposium on Comminution. 11th Euro. Symp. Comminution, Budapest, Hungary, (1-6). 9-12 October, 2006.

  • Mainza, N, Powell, Malcolm and Morrison, R. D. (2006). A review of SAG circuits closed with hydrocyclones. In: Mular, International Autogenous and Semi Autogenous Grinding Technology. SAG 2006, Vancouver Canada, (326-341). 24-27 September 2006.

  • McBride, A. T. and Powell, Malcolm S. (2006). A structured approach to modelling SAG mill liner wear - Numerical modelling of liner evolution. In: Mular, Proceedings International autogenous and semi autogenous grinding technology 2006. International autogenous and semi autogenous grinding technology 2006, Vancouver, Canada, (120-132). 24-27 September 2006.

  • Powell, M. and Chandramohan, R. (2006). A structured approach to modelling SAG mill liner wear - monitoring wear. In: Mular, Proceedings of International Conference on Autogenous and Semi Autogenous Grinding Technology 2006. International Autogenous and Semiautogenous Grinding Technology 2006, Vancouver, Canada, (133-148). 24-27 September 2006.

  • Govender, I. and Powell, M. S. (2006). An empirical power model derived from 3D particle tracking experiments. In: J.J. Cilliers, Selected papers from Computational Modelling ’05, Cape Town, South Africa: DEM Solutions: Discrete Element Modeling. Computational Modelling ’05, Cape Town, South Africa, (1005-1012). 7-9 November 2005. doi:10.1016/j.mineng.2006.03.017

  • Morrison, R., Loveday, B., Powell, M. S., Djordjevic, N. and Cleary, P. (2006). Applying discrete element modelling to different modes of breakage in AG and SAG mills. In: Proceedings International autogenous and semiautogenous grinding technology. International autogenous and semiautogenous grinding technology 2006, Vancouver, Canada, (407-420). 23-27 September, 2006.

  • Mwansa, S., Condori, P. and Powell, M. S. (2006). Charge segregation and slurry transport in long SAG mills. In: Proceedings of the XXIII International Mineral Processing Congress (IMPC 2006). XXIII International Mineral Processing Congress (IMPC 2006), Istanbul, Turkey, (81-86). 3-8 September 2006.

  • Govender, I., McBride, A. T. and Powell, M. S. (2006). Development of DEM validation tools with 3D X-ray particle tracking system. In: Proceedings of SEM06. SEM06, St Louis, (). 4-7 June, 2006.

  • Mainza, A. N., Powell, M.S. and Knopjes, B. (2006). Enhancing platinum recovery with the three-product cyclone. In: Guven Onal, Neset Acarkan and et al., Proceedings of the XXIII International Mineral Processing Congress. XXIII International Mineral Processing Congress, Istanbul, Turkey, (1578-1583). 3-8 September 2006.

  • Sweet, C.G., Sweet, J. A., Harris, M. C., Powell, M. S., Lambert, A. S., Charlesworth, P. and Knopjes, L. M. (2006). Industry taking the initiative in developing high calibre technical staff. In: Proceedings of the XXIII International Mineral Processing Congress. The XXIII International Mineral Processing Congress, Istanbul, Turkey, (2955-2059). 3-8 September 2006.

  • Govender, I. and Powell, M. S. (2006). Investigating SAG model assumptions using laboratory 3D trajectory data. In: Mular and et al, Proceedings of the International Conference on Autogenous and semi-Autogenous Grinding Technology. International autogenous and semiautogenous grinding technology, Vancouver, Canada, (436-450). 24-27 September, 2006.

  • van der Westhuizen, A. P .P and Powell, M. S. (2006). Milling curves as a tool for characterising SAG mill performance. In: Mular and et al, Proceedings of the International Conference on Autogenous and semi-Autogenous Grinding Technology. International autogenous and semiautogenous grinding technology, Vancouver Canada, (217-132). 24-27 September, 2006.

  • Mainza, A and Powell, Malcolm (2006). RoM Ball mills - a comparison with AG/SAG milling. In: Proceedings of International autogenous and semi autogenous grinding technology 2006. International autogenous and semi autogenous grinding technology 2006, Vancouver, Canada, (314-325). 24 - 27 September 2006.

  • Powell, M. S. and Valery, W. (2006). Slurry pooling and transport issues in SAG mills. In: Michael J. Allen et.al., Proceedings International autogenous and semiautogenous grinding technology. International autogenous and semiautogenous grinding technology, Vancouver, Canada, (133-152). 24-27 September, 2006.

  • Powell, M.S. (2006). The Unified Comminution Model - a Conceptually New Model. In: Proceedings of the XXIII International Mineral Processing Congress. Proceedings of the XXIII International Mineral Processing Congress, Istanbul, Turkey, (1783-1788). 3 - 8 September, 2006.

  • Powell, M., Condori, P., Smit, I. and Valery, W. (2006). The value of rigorous surveys - the Los Bronces experience. In: Mular, Proceedings of International Conference on Autogenous and Semi Autogenous Grinding Technology 2006. International autogenous and semi autogenous grinding technology 2006, Vancouver, Canada, (233-248). 24 - 27 Septmeber 2006.

  • Chandramohan, R. and Powell, M. S. (2005). Measurement of particle interaction properties for incorporation in the discrete element method simulation. In: Tim Napier-Munn, Minerals Engineering; JKMRC International Student Conference. JKMRC International Student Conference, Brisbane, Australia, (1142-1151). 6-7 September 2004. doi:10.1016/j.mineng.2005.06.004

  • Mainza, A., Powell, M. S. and Knopjes, B. (2004). A comparison of different cyclones in addressing challenges in the classification of the dual density UG2 platinum ore. In: Journal of the South African Institute of Mining and Metallurgy: Proceedings of the First International Platinum Conference ‘Platinum Adding Value’. First International Platinum Conference ‘Platinum Adding Value’, Sun City, Rustenburg, South Africa, (341-348). 3-7 October, 2004.

  • Sarracino, R.S., McBride, A.T. and Powell, M.S. (2004). Using Particle Flow Code to investigate energy dissipation in a rotary grinding mill. In: Proceedings Numerical Modeling in Micromechanics via Particle Methods. Numerical Modeling in Micromechanics via Particle Methods, Kyoto, Japan, (). 28-29 October, 2004.

  • Powell, M. S., McBride, A. T. and Govender, I. (2003). Application of DEM Outputs to Refining Applied SAG Mill Models. In: Proceedings of 22nd International Mineral Processing Congress. IMPC 2003 Conference, Cape Town, South Africa, (307-316). 28 September - 3 October , 2003.

  • Mainza, A. and Powell, M.S. (2003). Use of the three-product cyclone in dual-density ore classification. In: Proceedings of the IMPC 2003 conference. IMPC 2003, Cape Town, South Africa, (317-326). 29 September- 3 October, 2003.

  • Powell., M. S. (2002). South African progress on closing the design gap between High- and Low-aspect SAG mills. In: Ed J Nesset, The Proceedings of the 34th annual meeting of the Canadian Mineral Processors. Canadian Mineral Processors, xx, (189-204). 22-24 January, 2002.

  • McBride, Andrew, Govender, Indresan, Powell, Malcolm and Balden, Victor (2002). Three Dimensional Validation of Discrete Element Method (DEM) using a laboratory ball mill. In: Richard P. Jensen and Benjamin K. Cook, Proceedings Third International Conference Discrete Element Methods. Discrete Element Methods 2002, Santa Fe, New Mexico, (207-211). 23-25 September, 2002. doi:10.1061/40647(259)37

Other Outputs

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

  • Doctor Philosophy — Principal Advisor

  • Master Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

Completed Supervision