Hi Seik
Thinking about it a bit more, and hopefully adding a bit more...
I'm with you with the fluid bed. It's their main strength. We know they are also into:
roasting and magnetic separation, (ERMS) and
leaching, filtering, washing, calcinating. (EARS).
Additionally, as an aside, my understanding is that agglomeration takes place in a fluid bed, (where else!!) and they are not using any binders (and presumably that includes flocculants).
OK. So we've got a strongly acidic and therefore probably enclosed environment, some filters (carbon?), and some heat (for the calcination). And a presumption of no binders or flocculants.
Possible variables - pH, heat, wash solution?, pressure and rate of flow of the liquor. May be a reagent to help change state (valence) ???
Very intriguing - could that be the actual patent application? I can't seem to navigate anywhere from that page, but I've been having linking probs.....
cheers
Lekki
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