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I am a director at CM Solutions Metallurgical Consultancy and Laboratories. We are a South African-based company which provides assistance to the metallurgical industry. We offer metallurgical test work (with in-house analysis) and consulting services ranging from desktop, concept and pre-feasibility studies to process modelling to onsite process optimisation.

I also assist in the development and maintenance of Cycad Process, a flowsheeting and simulation package developed for metallurgical engineers.

Factors Influencing Choice of Product and Flowsheet Economics, Hydrometallurgical processing of cobalt short course, SAIMM Copper-Cobalt 2023, Zambia

Understanding the Impact of Particle Size Distribution on Leaching Performance, SAIMM Copper-Cobalt 2023, Zambia

Simulation and modelling, Test work and it's Importance in Metallurgical Design Workshop, SAIMM Hydometallurgy 2016, South Africa

Using Isocalc^TM, LIX User Group 2017, Chile

Evaluation of Copper Solvent-Extraction Circuit Data and Performance, SAIMM Copper-Cobalt 2015, Zambia Paper

Isocalc^TM, LIX User Group 2014, Spain

Optimisation of Milling and Flotation circuits – A case study, SAIMM Mineral Processing 2011, South Africa

Mill Power Optimiser, SAG Conference 2006, Canada

F.K. Crundwell, F.K., du Preez, N.B., Knights, B.D.H., Production of cobalt from copper-cobalt ores on the African Copperbelt – An overview, Minerals Engineering, 156 (2020)

du Preez, N.B., F.K. Crundwell, F.K., Knights, B.D.H., Flotation of PGM-containing minerals: Plant-wide regression and prediction of circuit performance, Minerals Engineering, 54 (2013) 116-123

Crundwell, F.K., du Preez, N.B., Lloyd, J.M. Dynamics of particle-size distributions in continuous leaching reactors and autoclaves. Hydrometallurgy 133 (2013) 44-50