interesting comparison for complexity as HRR is a polymetallic...

interesting comparison for complexity

as HRR is a polymetallic with credits for many metals, wouldn't they have a more complex flowsheet to separate it all? The tailings mineral reserve for HRR is 6% Zn eq, yet is only 2.2% Zn, showing how many credits for other metals it relies on

for example, they have a complete Copper float/regrind/cleaner circuit in their tailings flowsheet which is self evidently not required here (unless you know something about Cu in the tails that i've missed?)

I would think the Century tailings would be much more straightforward, so a very positive comparison from this example you raise