‘Cons’ is an abbreviation of ‘concentrates’. In metallurgy, practitioners tend to just use the abbreviation, ‘cons’. Everyone in the game understands what is meant, but here’s the explanation anyway. Just in case!
For example, you might use a Centrifugal Concentrator (known in some countries as an STLB) to perform the primary concentration. That is, to recover all the heavy minerals and gold out of the Run of Mine (ROM) ore feed.
This recovered material is referred to as the ‘concentrates’.
But to actually get ‘clean gold’, you have to then run the concentrates through another process (a secondary concentrator), such as running the cons over a Wave Table. By doing this, an upgraded fraction is recovered that is much smaller in mass, so it’s easier to deal with.
Gold can also be won from the cons by leaching the gold out, for example, using a CLS (Chemical Leaching System).
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