Ex Mente Pyro Week 2022

Johan Zietsman


Dates: 4-8 April 2022
Format: Training (in-person)
Pyro Community Day (hybrid: online and in-person)
Location: Pretoria, South Africa

We are looking forward to exploring, discovering, and learning together as part of our drive to empower teams in our industry. In the past, we hosted Thermo Week, during which we focused on thermochemistry. Pyro Week has a broader scope, to address more of the needs that we have identified in our pyrometallurgy community. Thermochemistry will still be at the core, but this year we will also wrestle with process kinetics and mass and energy balances.

Process kinetics refers to reaction kinetics and transport processes like heat transfer, fluid flow, and mass transfer. Collectively, these rate phenomena are at the heart of furnace capacity, process stability, and even safe process containment.

Mass and energy balances are probably the most essential tools that pyrometallurgists use to develop, design, analyse, and operate our processes. These models take different forms in different applications, but what remains true in all cases is that we need to create them based on sound principles and practices.

We are also renaming our Users’ Meeting to Ex Mente Pyro Community Day. We will have a prominent keynote speaker and several other presenters who will share their thoughts, challenges, and breakthroughs.

Next year we will add a few more topics to the agenda, and we will let you know more about them in time. We are looking forward to seeing you at Pyro Week 2022.


Date Event Format
4 April Essential theory of thermochemistry In person
5-6 April Mass and energy balances – Principles, practices, and applications In person
5-6 April FactSage basic user training In person
7 April Pyro Community Day (Hybrid – both in-person and online) Hybrid – In person and online
8 April Essential theory of process kinetics In person
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Johan Zietsman


We are grateful to welcome Charlotte Hollenbach to our management team from 1 February 2022. You are already making a difference since you have joined, Charlotte, and it is great to have you in our team. We look forward to making a real difference together into the future. A warm welcome to Ex Mente.

Heine Weitz


We are excited to welcome Nico van Hoepen to the Ex Mente team. We are grateful to have you in the team and look forward to many fulfilling years of working and learning together, Nico.