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Grinding and flotation, one system

Solutions

Integrated Grinding-to-Flotation

Global Met Tech, Auday-GMT Alliance partner

The lowest media wear, or the best result from one flotation stage, is not always the best result for the plant. What happens in the mill changes what reaches the flotation cells.

Heat treatment line at the manufacturing plant Ore train at a mine site

Overall Objective

Optimise each process individually. Optimise their interaction where they connect.

Find the best overall process outcome, not simply the lowest grinding-media wear or the highest single-stage flotation number.

Grinding media and flotation reagents are often supplied and managed separately, so the interface between them can fall between teams. We look at it on purpose.

Grinding and flotation optimisation are each complete on their own. An integrated program is used where both processes are present and their interaction may change the overall optimum. You do not need to buy both to work with us.

Where leaching follows flotation or grinding, its requirements are treated as a constraint on what “optimum” means upstream. Auday does not offer leaching optimisation as a service.

Conveyor and stockpile at a processing site

The Interface

The Grinding-to-Flotation Interface

Grinding inputs
  • Media type
  • Media chemistry
  • Size
  • Hardness
  • Regrinding strategy
  • Grinding conditions
Interface variables
  • Particle size
  • Liberation
  • Fines and slimes
  • Mineral surface condition
  • Pulp chemistry
  • Oxidation-reduction environment
  • Dissolved species
  • Media-mineral interactions
Flotation response
  • Collector interaction
  • Kinetics
  • Recovery
  • Grade
  • Selectivity
  • Froth behaviour

Grinding optimisation · Flotation optimisation · Research through our alliances

Mineral processing plant structure

Contact Us

Have a grinding or flotation problem worth solving?

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How we work

A reagent change or a new ball size can fix a symptom and miss the problem. We start with the ore, the mill and the plant data, find what is actually limiting performance, then design the product or process change that addresses it.

- Our method