@Dom2007Read the final metallurgical report from IHG Robbins to see what minerals really go where during the speration, upgrade and final product processes.
https://www.asx.com.au/asxpdf/20200826/pdf/44lxdd4tssmx90.pdfIlmenite concentrate from the CUP comprises 44.3% of the HMC (close enough to your Ilm + Leuc average)
Then reduce that figure to 82.8% reflecting losses in the Ilmenite Upgrade Process
Then reduce figure again to 82.8% reflecting losses in the Ilmenite Roast Process
32.7% ilm is recovered from 44.3% of HMC reporting to the Ilm concentrate. This is shizen housen, as is the rutile, the zircon not much better and the leucoxene is roughly 1/3 to ilm con, 1/3 to non-mag and 1/3 lost. The real ilmenite content as produced is hidden away behind the details few know to look for, because... well, that's pretty obvious I think..
Please let me know if you can find a mine with a lower value assemblage...
