Hey BPP, thanks yet again ! I've got two questions if you don't mind.
Assuming a higher pH does not avoid Fe and Al impurities in the MREC product, what would be the ballpark additional CAPEX and OPEX we might expect from an additional step in the flowsheet to remove these metals? Also worth nothing that the metallurgy indicates an increase in Ph (1 to 1.5) leads to lower MREE extraction.
Is it possible that these impurities cannot be eliminated - without losing a detrimental amount of MREE - thus rendering the entire project unviable due to the MREC product being undesirable?
Red Metal Banter, page-511
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