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Prof Leon Lorenzen
Professor Extraordinary

Short Bio

  • Education
    • PhD (Engineering), Stellenbosch University, 1993
    • MScEng (Metallurgical Engineering), Stellenbosch University, 1985
    • BEng (Chemical Engineering), Stellenbosch University, 1982
    • Post Graduate Diploma – Executive Development Programme, Stellenbosch University Business School, 1998
  • Professional experience
    • Professor Extraordinary in Mineral Processing
      Stellenbosch University, Process Engineering Department
      September 2008 to present
    • Visiting Professor in Metallurgical Engineering
      Western Australian School of Mines, Curtin University, Perth
      January 2013 to present
    • Studies Manager/Director
      Mintrex, Subiaco, Western Australia
      2013 to present
    • Group General Manager and Executive Consultant – Metallurgy, Innovation and Research
      Snowden Group, Perth
      December 2009 to 2013
    • Innovation Project Manager
      BHP Billiton Nickel West, Stainless Steel Materials (SSM), Perth
      February 2009 to November 2009
    • Metallurgy Manager
      BHP Billiton, Stainless Steel Materials (SSM), Perth Technology Centre
      September 2008 to February 2009
    • Professor, Chairman, Deputy Dean, Acting Dean
      Stellenbosch University, Department of Process Engineering
      July 1995 to August 2008
    • Senior Lecturer, Associate Professor
      Stellenbosch University, Department of Process Engineering
      July 1990 to June 1995
    • Senior Engineer
      Somchem (Pty) Ltd
      October 1988 to June 1990
    • Senior Plant Metallurgist, Plant Production Superintendent
      Anglo American Corporation – Freegold (Ops) Ltd, Pres. Brand Gold Mine, J.M.S. Uranium Plant
      August 1987 to September 1988
    • Research Metallurgist
      Anglo American Research Laboratories
      January 1983 to July 1987
  • Professional societies
    • Fellow of the South African Institute of Mining and Metallurgy (FSAIMM)
    • Fellow of the South African Institution of Chemical Engineers (FSAIChE)
    • Fellow of the Institute of Chemical Engineers (British) (FIChemE)
    • Fellow of the South African Academy of Engineering (FSAAE)
    • Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM)
    • Member of the Institution of Engineers Australia (MIEAust)
    • Registered as a Professional Engineer in South Africa (PrEng)
    • Registered as a Chartered Engineer with the British Engineering Council (CEng)
    • Registered with Professional Chartered Engineer with the Institution of Engineers Australia (CPEng)
  • Honours and awards
    • Best paper at the Second International Conference on Hydrometallurgy (ICHM ’92), China (1992)
    • Evaluated as a B category researcher by the NRF in South Africa
    • Researcher of the Year, Faculty of Engineering, University of Stellenbosch (1996)
    • Lecturer of the Year, Faculty of Engineering, University of Stellenbosch (1999)
    • Vice-Chancellor’s Award for Excellence in Research, University of Stellenbosch (2002)
    • SAIMM Silver Medal for the best journal article published in South African Institute of Mining and Metallurgy (SAIMM) Transaction Papers (2005)
    • Co-author of best poster paper at Mineral Processing 2006, Cape Town, South Africa
    • Co-author of best poster paper at South African Institute of Chemical Engineers, Research and Development Symposium, Cape Town (2007)
    • Authored papers have been awarded one of the Minerals Engineering Top 25 papers (2011 and 2012)
    • Authored paper has been awarded one of the Chemical Engineering Top 25 papers (2007)

Research Interests

  • Mineral processing
  • Electrochemistry
  • Reactive systems
  • Hydrometallurgy
  • Waste treatment
  • Biofuels

Selected Publications

  • Musee, N. and Lorenzen, L. (2013), Market dynamics as a driver towards research needs evolution: a case of up-flow anaerobic sludge blanket seeding granules, WaterSA, Volume 39(1).
  • Lorenzen, L., Barnard, M.J. (2011), Why is mineralogical data essential for designing a metallurgical test work program for process selection and design? GeoMet 2011 – 1st AusIMM International Geometallurgy Conference 2011, pp. 163-172.
  • Daramola, M.O., Burger, A.J., Pera-Titus, M., Giroir-Fendler, A., Miachon, S., Dalmon, J.-A., Lorenzen, L. (2010), Separation and isomerization of xylenes using zeolite membranes: A short overview, Asia-Pacific Journal of Chemical Engineering, Volume 5(6), pp. 815-837.
  • Daramola, M.O., Deng, Z., Pera-Titus, M., Giroir-Fendler, A., Miachon, S., Burger, A.J., Lorenzen, L., Guo, Y. (2010), Nanocomposite MFI-alumina membranes prepared via pore-pugging synthesis: Application as packed-bed membrane reactors for m-xylene isomerization over a Pt-HZSM-5 catalyst, Catalysis Today, Volume 156(3-4), pp. 261-267.
  • Daramola, M.O., Burger, A.J., Giroir-Fendler, A., Miachon, S., Lorenzen, L. (2010), Extractor-type catalytic membrane reactor with nanocomposite MFI-alumina membrane tube as separation unit: Prospect for ultra-pure para-Xylene production from m-Xylene isomerization over Pt-HZSM-5 catalyst, Applied Catalysis A: General, Volume 386(1-2), pp. 109-115..
  • Daramola, M.O., Burger, A.J., Pera-Titus, M., Giroir-Fendler, A., Lorenzen, L., Dalmon, J.-A. (2010), Xylene vapor mixture separation in nanocomposite MFI-alumina tubular membranes: Influence of operating variables, Separation Science and Technology, Volume 45(1), pp. 21-27.