The course instructors represent a wide cross-section of expertise, from academic fundamentals, to industrial application, to equipment design. This provides you access to the broadest possible scope of knowledge and ideas that can be leveraged in a variety of situations.

Pictured on left: The 2017 course instructors and organizers, from left to right: Stephen Lindsay; Stephan Broek; Margaret Hyland; and David Wong.

Stephan Broek, Lead Organizer/Instructor
Hatch Ltd.

Stephan Broek graduated from the Amsterdam University of Applied Sciences with a bachelor’s degree in chemical engineering. He also holds a diploma in process technology from Twente University. Broek is director of Environmental Engineering & technology and part of the Light Metals business unit of Hatch Ltd. Under the Center of Excellence he and his team of specialists work exclusively on primary aluminum smelter projects worldwide. Broek is recognized in the industry for his knowledge and experience with all types of gas cleaning systems used in smelters around the world. He has been involved in upgrading old GTCs and scrubbers and in the design and construction of new units. He was manager of the contract to install the first two Chinese GTCs in a western smelter. Broek is also a leader in SPL processing. He is up-to-date with market conditions and advices smelters such as Emirates Global Aluminium, Sohar Aluminium, and Ma’aden Aluminium on their strategies to send SPL to sustainable outlets. Broek has been associated with the aluminum industry for almost 20 years. He is a member of the TMS Aluminum Committee and a regular presenter and speaker at major international conferences such as the TMS annual meeting, Arabal, ICSOBA, and Metal Bulletin.

Stephen Lindsay
Senior Smelting Specialist
Alcoa Inc. (retired)

Steve Lindsay served in numerous technical and managerial capacities in Alcoa for 39-1/2 years. His responsibilities included control of fluoride emissions, raw materials quality including alumina for dry scrubbing, and Best Practices for emissions control. His articles on emission control, raw materials and impurities, metal purity, and other topics have been published in Light Metals, proceedings of Australasian Smelting Technology Conferences, and the proceedings of International Alumina Quality Workshops. He also holds a few U.S. and international patents on fume control and alumina feeding. He served as the editor of Light Metals in 2011, and also regularly participates in TMS courses on Industrial Aluminum Electrolysis and Anode Technology for the Aluminum Industry. Steve was awarded the TMS Light Metals Division Distinguished Service Award in 2016 and he lives near the Smoky Mountains in Tennessee.

David Wong
Manager Project Delivery & Principal Engineer Environmental
University of Auckland-Light Metals Research Centre

David Wong has been active in aluminum reduction technology for the past decade, particularly in the field of environmental management. He led the completion of the Light Metals Research Centre’s (LMRC) Fluoride Emissions Management Guide (FEMG), its implementation in a Chinese smelter in 2010, and leads the LMRC’s research on unaccounted PFC emissions and automatic AET termination strategies. In 2013, he completed his Ph.D. in chemical and materials engineering at the University of Auckland, focusing on fugitive particulate emissions from the potrooms of aluminum smelters. He is a lead author for the Intergovernmental Panel on Climate Change (IPCC) in its refinements of the 2006 IPCC Guidelines for accounting greenhouse gases from the aluminum industry. He has been an active member of TMS, co-authoring a number of papers on perfluorinated compounds (PFCs), particulates, and fluoride emissions. He has chaired environmental sessions at TMS annual meetings, and was a recipient of a TMS Light Metals Division Young Leaders Professional Development Award in 2014. In addition to the environmental field, he has a strong interest in advanced process control, automatic sensors, data visualization, and bath chemistry fundamentals. He has managed smelter-based projects in Australasia, North America, China, Europe, and Russia.