Academic Staff

Prof Leon Lorenzen

Leon Lorenzen, Process (Chemical) Engineering, Stellenbosch University

Professor Extraordinary

  • Email: Leon.Lorenzen@mintrex.com.au
  • 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
  • Recent 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.

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