Jochen Petersen

Acting Director

Minerals to Metals Initiative

Research Interests

Understanding the Factors that Drive and Limit Heap Bioleaching, Leach Mechanisms at the Particulate and Aggregate Scale, Fundamental Leach Mechanisms

Resources

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Qualifications

PhD - Chemical Engineering : UCT (1998)
BSc (Hons) - Chemical Engineering: Wits (1992)
Vordiplom (2nd year pass certificate)- Chemical Engineering: Technische Hochschule Karlsruhe, Germany (1998)
Abitur (“A-Level” High School Leaving Certificate): Karlsruhe, Germany (1985)

Employment

2016-present

Professor, Department of Chemical Engineering, University of Cape Town 2012-2015 Associate Professor-Department of Chemical Engineering, University of Cape Town 2008-2011 Senior Lecturer – Department of Chemical Engineering, University of Cape Town, South Africa 2002-2008 Senior Research Officer – Bioprocess Engineering Research Unit, Department of Chemical Engineering, UCT 2000-2002 Postdoctoral Fellow/ Research Associate – Department of Metals and materials Engineering, University of British Columbia, Vancouver, Canada 1998-1999 Post-doctoral Fellow/ Research Officer – EPSE, UCT 1988-1989 Student Researcher – Gold Exploitation Laboratory, Chamber of Mines Research Organization, Johannesburg, South Africa

Current projects

  • The influence of diffusion pathways on the solution potential in mineral leach systems
  • In-situ leaching of rare earth elements
  • The kinetics of lime dissolution in acid mine drainage neutralization
  • Investigation of heap leach phenomena in large particles
  • Urban mining and e-waste recycling.

Selected publications

Peer Reviewed Journals

1. Faraz Soltani, Mahmoud Abdollahy, Jochen Petersen, Rahul Ram, S.M. Javad Koleini, Davood Moradkhani: “Leaching and recovery of phosphate and rare earth elements from an iron rich fluorapatite concentrate: Part II: Selective leaching of calcium and phosphate and acid baking of the residue”; Hydrometallurgy 184 (2019) 29–38; DOI: 10.1016/j.hydromet.2018.12.024

2. T. Moyo, J. Petersen, M.J. Nicol: “The electrochemistry and kinetics of the oxidative dissolution of chalcopyrite in ammoniacal solutions. Part II – Cathodic reactions”; Hydrometallurgy 184 (2019) 67–74; DOI: 10.1016/j.hydromet.2018.12.020

3. P.J. van Staden, J. Petersen: “The effects of simulated stacking phenomena on the percolation leaching of crushed ore, Part 2: Stratification”; Minerals Engineering 131 (2019) 216–229; DOI: 10.1016/j.mineng.2018.11.021

4. Cledwyn Mangunda, Jochen Petersen, Alison Emslie Lewis: “The effect of Fe(III) concentration on the dewatering behaviour of Fe(III) oxyhydroxide precipitates from low-tenor solutions”; Hydrometallurgy 183 (2019) 20–28; DOI: 10.1016/j.hydromet.2018.11.010

5. T. Moyo, J. Petersen, M.J. Nicol: “The electrochemistry and kinetics of the oxidative dissolution of chalcopyrite in ammoniacal solutions: Part I – Anodic Reactions”; Hydrometallurgy 182 (2018) 97–103; DOI: 10.1016/j.hydromet.2018.10.018

6. I.M.S.K. Ilankoon, Yousef Ghorbani, Meng Nan Chong, Gamini Herath, Thandazile Moyo, Jochen Petersen: “E-waste in the international context – A review of trade flows, regulations, hazards, waste management strategies and technologies for value recovery”; Waste Management 82 (2018) 258–275; DOI: 10.1016/j.wasman.2018.10.018

7. P.J. van Staden, J. Petersen: “The effects of simulated stacking phenomena on the percolation leaching of crushed ore, Part 1: Segregation”; Minerals Engineering 128 (2018) 202–214; DOI: 10.1016/j.mineng.2018.08.045

8. Emmanuel Ngoma, Danilo Borja, Mariette Smart, Kathija Shaik, Hyunjung Kim, Jochen Petersen, Susan T.L. Harrison: “Bioleaching of arsenopyrite from Janggun mine tailings (South Korea) using an adapted mixed mesophilic culture”; Hydrometallurgy 181 (2018) 21–28; DOI: 10.1016/j.hydromet.2018.08.010

9. M.S. Ncongwane, J.L. Broadhurst, J. Petersen: “Assessment of the potential carbon footprint of engineered processes for the mineral carbonation of PGM tailings”; International Journal of Greenhouse Gas Control 77 (2018) 70–81; DOI: 10.1016/j.ijggc.2018.07.019

10. F. Soltani, M. Abdollahy, J. Petersen, R. Ram, M. Becker, S.M.J. Koleini and D. Moradkhani: ‘Leaching and recovery of phosphate and rare earth elements from an iron-rich fluorapatite concentrate: Part I: Direct baking of the concentrate’; Hydrometallurgy 177, 2018, 66-78; DOI: 10.1016/j.hydromet.2018.02.014

11. K.Shaik and J. Petersen: ‘An investigation of the leaching of Pt and Pd from cooperite, sperrylite and column bioleached concentrates in thiocyanate-cyanide systems’; Hydrometallurgy 173C, 2017, 210-217; DOI: 10.1016/j.hydromet.2017.08.021

12. J.M. Mwase, J. Petersen: ‘Characterizing the leaching of sperrylite (PtAs2) in cyanide-based solutions’; Hydrometallurgy 172, 2017, 1-10; DOI: 10.1016/j.hydromet.2017.06.019

13. P.J. van Staden, A.V. Kolesnikov, J. Petersen: ‘Comparative assessment of heap leach production data – 1. A procedure for deriving the batch leach curve ‘; Minerals Engineering 101, 2017, 47–57; DOI: 10.1016/j.mineng.2016.11.009

14. P.J. van Staden, T.D. Huynh, M.K. Kiel, R.I. Clark, J. Petersen: ‘Comparative Assessment of Heap Leach Production Data – 2. Heap Leaching Kinetics of Kipoi HMS Floats Material, Laboratory vs. Commercial Scale’; Minerals Engineering 101, 2017, 58–70; DOI: 10.1016/j.mineng.2016.11.015

15. C. Murray, W. Platzer, J. Petersen: ‘Potential for solar thermal energy in the heap bioleaching of chalcopyrite in Chilean copper mining’; Minerals Engineering 100, 2017 75-82; DOI: 10.1016/j.mineng.2016.09.022

16. Moyo, T., Petersen J. 2016. Study of the dissolution of chalcopyrite in solutions of different ammonium salts. Journal of the Southern African Institute of Mining and Metallurgy 116(6), 2017, 509-516.

Peer-reviewed and published Conference Proceedings

1. Hojat Naderi and Jochen Petersen: “Electrochemical Behaviour of Chalcopyrite in Presence of Sodium Peroxodisulfate”; in B. Davis et al. (eds.), Extraction 2018, The Minerals, Metals & Materials Series. Springer, (ISBN: 978-3-319-95021-1; DOI: 10.1007/978-319-95022-8), 1245-1255

2. B. Manana, J. Petersen, R. Ram: “Study of the diffusion of Cu(II) as an oxidant through simulated particle pores in a novel model apparatus”; in B. Davis et al. (eds.), Extraction 2018, The Minerals, Metals & Materials Series, Springer(ISBN: 978-3-319-95021-1; DOI: 10.1007/978-319-95022-8), 1361-1372

3. Cledwyn Mangunda, Jochen Petersen and Alison Lewis: “The Dewatering Behaviour of Transformed Ferri-Oxyhydroxide Precipitates Formed Under Moderate Temperature and Varying Fe(III) Concentrations”; in B. Davis et al. (eds.), Extraction 2018, The Minerals, Metals & Materials Series, Springer(ISBN: 978-3-319-95021-1; DOI: 10.1007/978-319-95022-8), 1597-1609

4. Cody Burcher-Jones, Sfiso Mkhize, Megan Becker, Rahul Ram, Jochen Petersen: “Study of the Deportment of REEs in Ion Adsorption Clays towards the Development of an In-situ Leaching Strategy”; in B. Davis et al. (eds.), Extraction 2018, The Minerals, Metals & Materials Series. Springer, (ISBN: 978-3-319-95021-1; DOI: 10.1007/978-319-95022-8) 2429-2439

5. J. Petersen ‘Unravelling the complexity of heap bioleaching’, in S. Hedrich, K. Rübberdt, F. Glombitza, W. Sand, A. Schippers, M. Vera Véliz and S. Willscher (eds.) ‘22nd International Biohydrometallurgy Symposium’, Trans Tech Publications: Solid State Phenomena 262 SSP, 2017, pp. 246-249

6. J.M. Mwase and J. Petersen: ‘The use of heap bioleaching as a pre-treatment for platinum group metal leaching’, in S. Hedrich, K. Rübberdt, F. Glombitza, W. Sand, A. Schippers, M. Vera Véliz and S. Willscher (eds.) ‘22nd International Biohydrometallurgy Symposium’, Trans Tech Publications: Solid State Phenomena 262 SSP, 2017, pp.151-154

7. E. Ngoma. K. Shaik, D. Borja, M. Smart, J.H. Park. H. Kim, J. Petersen, S.T.L. Harrison: ‘Investigating the bioleaching of an arsenic mine tailing using a mixed mesophilic culture’, in S. Hedrich, K. Rübberdt, F. Glombitza, W. Sand, A. Schippers, M. Vera Véliz and S. Willscher (eds.) ‘22nd International Biohydrometallurgy Symposium’, Trans Tech Publications: Solid State Phenomena 262 SSP, 2017, pp. 668-672

8. P.J. van Staden, A. Naseri and J. Petersen: ‘HeapSim Modelling of High Temperature Heap Bioleaching Data’; Proceedings of ALTA 2017 Nickel-Cobalt-Copper Sessions 22-14 May 2017, Perth, Australia, Alta Metallurgical Services Publications, ISBN: 978-0-9925094-8-4; 2017, p 210-246

9. T. Moyo and J. Petersen: ‘A Kinetic Study of the Leaching of Chalcopyrite in Ammonia–Ammonium Sulphate Solutions’ in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 87-100

10. Z. Sadan, V. Ntozakhe, M. Amirudin, T. Moyo, D. Bradshaw and J. Petersen, ‘A Kinetic Investigation of Iodine Leaching of Gold Leaf from Electronic Circuit Boards’, in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 373-382

11. P.J. van Staden and J. Petersen, ‘A PhreeqC Model of Heap Leaching’, in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 37-48

12. N. Jansen van Rensburg and J. Petersen, ‘A Value-Based Approach to Leach Optimization at Rössing Uranium Limited’, in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 111-122

13. C. Burcher-Jones, S. Lodewyk, K. Shaik and J. Petersen, ‘Conversion Kinetics of Cyanide to Thiocyanate in the Presence of Reduced Sulphur Species: Sulphite, Thiosulphate and Polysulphide’, in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 219-226

14. X.C. Goso, J. Petersen, J. Nell and K. Bisaka, ‘Scoping Study of the Upgrading of Fluxed and Fluxless Titaniferous Magnetite Slags using the Upgraded Slag Process’, in ‘Hydrometallurgy Conference 2016: Sustainable Hydrometallurgical Extraction of Metals’, Cape Town, 1–3 August 2016; Southern African Institute of Mining and Metallurgy; SAIMM Symposium Series S89, ISBN 978-1-920410-84-1; 2016, p 423-434

15. C. Mangunda, J. Petersen and A.E. Lewis, ‘An Initial Investigation Into The Effect Of Fe (III) Concentration On The Product Characteristics Of Fe(III) Oxyhydroxide Precipitates During Lime Precipitation’, in ‘ IMPC 2016: XXVIII International Mineral Processing Congress Proceedings - International Symposium on Iron Control in Hydrometallurgy‘; Canadian Institute of Mining Metallurgy and Petroleum, ISBN: 978-1-926872-29-2; 2016, e-paper 926

16. D. Taggard and J. Petersen ‘Evaluating The Effect Of Seeding On Zinc Recovery Through The Zincor Iron Removal Circuit’, in ‘ IMPC 2016: XXVIII International Mineral Processing Congress Proceedings - International Symposium on Iron Control in Hydrometallurgy ‘; Canadian Institute of Mining Metallurgy and Petroleum, ISBN: 978-1-926872-29-2; 2016, e-paper 927