Merinda Westcott has a B.Eng (Chemical) from the University of Pretoria. She has worked in the advanced control field for twelve years, with SGS and BluESP, including being the business unit leader (APC). Before moving to the control field she was with Impala Platinum (the world’s second-largest platinum producer) for twelve years, holding various positions.

Merinda has implemented projects in various minerals fields, including: copper, lead-zinc, iron ore, diamonds and platinum. Merinda is a registered Professional Engineer with ECSA.

Johann Botha has a B.Eng and B.Eng Honours from the University of Pretoria. He aims to solve process problems, using advanced process control and knowledge-based techniques, modelling and data analysis, and delivering a safe, sustainable solution. His process control experience lies mainly in the metals, mining and minerals industries, specifically iron ore, platinum, copper, ferrochrome, iron making, cement and lime.

In executing APC projects, Johann has realised benefits such as
• increased throughput, typically greater than 4% on comminution circuits
• improved efficiencies – e.g. kiln specific energy consumption improved by more than 3%, and
• improved qualities – e.g. 40% reduction in the standard deviation of residual lime
while always being cognisant of safety and environmental requirements.

He has helped develop advanced control platforms, including model predictive controllers, modelling software as well as various utilities that simplify the engineering workflow. He finds empowering others through knowledge transfer and mentoring extremely rewarding.

Frane Van Zyl has a B.Eng and B.Eng Honours in chemical engineering, from the University of Pretoria. She has worked as a process control engineer at Mintek, Fonterra in New Zealand, SGS and Ausenco in Canada. She was the global engineering manager for SGS for more than ten years. Her clients included Anglo American, BHP Minera Escondida in Chile and FQML Sentinel in Zambia.

Frane is based in New Zealand and is a member of Engineers Australia and the South African Institute of Chemical Engineers. Her experience includes the optimisation of more than 40 concentrators. She has deep processing knowledge of copper, gold, platinum, base metals, diamonds, and coal. Frane specialises in developing, designing and implementing complete systems in grinding and flotation. She is passionate about training and applying machine learning practically and robustly. 

Andrew Carr is an experienced control engineer who has specialised in Multivariable Control of refinery process units.  He has supervised Advanced Control groups at SPRC Thailand and Caltex Cape Town and has consulted at Batangas Phillipines and for Technip Abu Dhabi. 

He was commissioning manager with UTS Kent responsible for instrumentation and DCS installation for the Borouge Ethylene Plant at Ruwais Abu Dhabi and Superintendent Control Applications at BAPCO, Bahrain where he supervised refinery controls and the installation of a refinery power plant optimiser. His interests are industrial process control and developing DCS resident multivariable control.”

Tristan-Lee has a B.Eng Chemical and B.Eng (Hons) Control Engineering from the University of Pretoria. She has worked in the advanced control field for five years, with Mintek and SGS, including being the Acting Regional Manager for Advanced Systems for SGS Australasia.

She has worked on projects in various mineral fields (gold, copper, nickel, diamonds and platinum) with operations in various countries (Russia, Kazakhstan, Chile, Zambia, South Africa, Mauritania, Egypt, Suriname, Canada, India, Laos, Papua New Guinea, and Turkey).