HWS it is a problem in controlling grade of water in IO.
DSO is only crushed, not ground using water as I understand. IO directly out of the ground contains around 10% water. GBG then processes the magnetite using water.
The better question is how the drenched magnetite is to be dried out. I have no figures from GBG on water content but am using industry figures from other producers and shipping Iines.
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