Learn how to develop a strategy to identify improvement opportunities in your plant.


Finally coming to Australia, the Magotteaux' plant audit course will provide you with a great added value by delivering knowledge and understanding on how to survey a plant from the mill to the concentrate.

What to expect

This workshop will give you the basic knowledge to develop effective and comprehensive auditing strategies of your operation including mill performance and downstream processing.

Our team of specialists will share their insight on what to look for and how to collect the data that you need. They will be available to discuss your main challenges and help you design specific plans to identify and solve problems.

  • Increase Mineral

  • Reduce Cost
    per ton

  • Increase Grinding


Morning - The grinding circuit

8:30 - 10:30

Segmentation, wear expression and performance follow up

Review the best way to monitor grinding media performance considering change in operating conditions and ore characteristics. We will discuss how to ensure that the grinding media used is optimal to the milling condition.

Mill internals survey (Liner, ball charge, feed and discharge configuration)

We will discuss the best ways to ensure that your mill internals are in good condition and have the correct design as it is essential for optimal grinding efficiency and mineral liberation.

10:30 - 11:00


11:00 - 12:30

Optimizing grinding efficiency (grinding survey, batch mill test and simulation)

How to obtain the perfect grind size with the least energy is a recurrent challenge faced by mill operators. This sessions will review how to asses current grinding performance and identify optimization opportunities.

12:30 - 13:30

Lunch by Magotteaux

Afternoon - The flotation/leaching circuit

13:30 – 15:30

Conducting a metallurgical surveying of a flotation circuit

Why conduct surveys? To gather data and knowledge about how the flotation circuit operates. The speaker will provide a description on how to prepare for and conduct a metallurgical survey (both block and down-the-bank) of their flotation circuit so that the correct samples are collected to be able to mass balance the results.

Completing a pulp chemistry and surface analysis survey

To compliment the metallurgical survey it is always a sound strategy to gather pulp and surface chemical information. Details of how to gather this data through the grinding and flotation circuit are provided. Some insights into how to interpret the data are given.

Mass balancing the survey

Now that you have all these numbers there is a need to mass balance the survey . . . this is the fun bit! The speaker will break down the process into bite size pieces to make the mass balancing experience more accessible.

15:30 - 16:00


16:00 - 17:00

Recovery-by-size and liberation class

The devil is in the detail. A mass balanced survey on an unsized basis provided some information, but to truly understand where the losses are within a circuit and what is diluting the concentrate there is a need to delve more deeply by examining the data on a size-by-size basis at the elemental and mineralogical level. These methods are reviewed by the speaker.

Linking metallurgical performance with the chemistry

Finally, the metallurgical data is combined with the chemical data to provide a better picture of why things happen. This also allows the practitioner to propose and test solutions that can lead to improvements in performance and increased revenues for their company.


Dinner by Magotteaux

Who to attend?

  • Plant Metallurgist
  • Plant Operator
  • Process Manager
  • Plant Manager
  • Process Superintendent


Chris Greet

Manager Metallurgy

Chris commenced his working life as a Trainee Metallurgist at Bradken’s Adelaide steel foundry in 1978. He subsequently worked in a number of foundries, before becoming a shift foreman at Seltrust’s Teutonic Bore Mine in 1982.

In 1985 he decided to formalise his knowledge by studying for a bachelor of Engineering in Metallurgical Engineering at the South Australian Institute of Technology. Upon graduating, he worked as a Plant metallurgist at OK Tedi Mining Limited and Bradken Adelaide, before undertaking a PhD at the lan Wark Research Institute in 1992.

Since leaving the Wark, Chris has held applied research positions at Mount Isa Mines Limited, Pasminco, AMDEL, and now with Magotteaux Australia, where he leads the technical group identifying the impact of grinding chemistry on downstream processing

Alex Bruwier

Senior Process Engineer

Alex Bruwier has been working for Magotteaux for close to 20 years. He started his career at the University of Liège in Belgium as an R&D engineer.

Soon after this academic episode, he entered the Magotteaux group through a subsidiary recognized in the cement industry as a process specialist, Slegten. He was part of the R&D department and contributed to different projects related to the cement and mining industry.

10 years ago, he joined the Mining Technical Department supporting Magotteaux mining customers worldwide. He’s currently Principal Process Engineer supporting Europe, Africa and Asia. He holds a degrees in Chemical Engineering and Chemical Sciences.


Mount Isa

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