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Prof Christie Dorfling
Associate Professor

Short Bio

Christie started his career as an engineer in the Measurement and Control Division at Mintek before joining the Department of Process Engineering at Stellenbosch University as a lecturer. His research interests in hydrometallurgy include characterisation and modelling of leaching systems, recovery of base and precious metals from leach solutions, and development of processes for metal recovery from low grade ores and secondary resources.

Research Interests

Hydrometallurgy, metal recycling, process modelling

Selected Publications

Dorfling, C., Akdogan, G., Bradshaw, S.M., and Eksteen, J.J., 2011. Determination of the relative leaching kinetics of Cu, Rh, Ru and Ir during the sulphuric acid pressure leaching of leach residue derived from Ni-Cu converter matte enriched in platinum group metals. Minerals Engineering, 24(6):583-589. http://dx.doi.org/10.1016/j.mineng.2010.08.021

Olivier, M.C., Dorfling, C., and Eksteen, J.J., 2012. Evaluating a solvent extraction process route incorporating nickel preloading of Cyanex 272 for the removal of cobalt and iron from nickel sulphate solutions. Minerals Engineering, 27-28: 37-51. http://dx.doi.org/10.1016/j.mineng.2011.12.006

Alberts, E., and Dorfling, C., 2013. Stripping conditions to prevent the accumulation of rare earth elements and iron on the organic phase in the solvent extraction circuit at Skorpion Zinc. Minerals Engineering, 40:48-55. http://dx.doi.org/10.1016/j.mineng.2012.09.005

Dorfling, C., Akdogan, G., Bradshaw, S.M., and Eksteen, J.J., 2013. Estimation of Rh, Ru, and Ir leaching kinetics during the sulfuric acid pressure leaching of Ni-Cu matte as a function of temperature, pressure, and acid concentration. Hydrometallurgy, 138:21-32. http://dx.doi.org/10.1016/j.hydromet.2013.06.007

Liebenberg, C.J., Dorfling, C., Bradshaw, S.M., Akdogan, G.A., and Eksteen, J.J., 2013. The recovery of copper from a pregnant sulphuric acid bioleach solution with developmental resin Dow XUS43605. The Journal of The Southern African Institute of Mining and Metallurgy, 113:389-397. http://www.saimm.co.za/Journal/v113n05p389.pdf

Dorfling, C., Akdogan, G., Bradshaw, S.M., and Eksteen, J.J., 2013. Modelling of an autoclave used for high pressure sulphuric acid/oxygen leaching of first stage leach residue, Part 1: Model development. Minerals Engineering, 53:220-227. http://dx.doi.org/10.1016/j.mineng.2013.03.005

Dorfling, C., Akdogan, G., Bradshaw, S.M., and Eksteen, J.J., 2013. Modelling of an autoclave used for high pressure sulphuric acid/oxygen leaching of first stage leach residue, Part 2: Model application. Minerals Engineering, 53:213-219. http://dx.doi.org/10.1016/j.mineng.2013.03.011

Mulwanda, J., Dorfling, C., 2015. Recovery of dissolved platinum group metals from copper sulphate leach solutions by precipitation. Minerals Engineering, 80:50-56. http://dx.doi.org/10.1016/j.mineng.2015.07.002

Masambi, S., Dorfling, C., and Bradshaw, S.M., 2016. Comparing iron phosphate and hematite precipitation processes for iron removal from chloride leach solutions. Minerals Engineering, 98:14-21. http://dx.doi.org/10.1016/j.mineng.2016.07.001

Teaching

Chemical Engineering 224 (Principles and Processes)
Chemical Engineering 254 (Mass and Energy Balances)