General Chat / Discussion, page-2121

yes correct.

if you've got 1000ppm and 50% recoveries it means 500ppm is lost to tailings.

therefore to upgrade 500ppm to 900,000ppm you need a large amount of feed. 900,000/500 = 1800

i.e. therefore you feed 1800T at 1000ppm in to get just 1T of REO concentrate out if you only recover 50%

Essentially what many others are presenting is information when says we processed 1000ppm with some mild acid and recovered 80% and now it's 800ppm. Okay... so it's actually diluted more now?
or
they say we hit it with acid and recovered 900ppm then we hit it with weak aqua Regia and it was 800ppm. 800/900 ~89% therefore 89% is weakly bonded.

Neither of those bits of information even remotely suggest that the REO is ionic in nature nor do they prescribe or delineate as to whether a concentrate can be produced cost effectively.

as to the other post, I'll try and find a previous posts where I've linked articles. but there's that much material out there. use HC key word search should be some posts where I linked technical articles for those wishing to read the dissertation and research journals with same watered down explanations. irrespectively if you only read the material I did you'll only formulate similar viewpoints as me which may negatively bias your opinion. best to hunt a little yourself and compliment it with other stuff so as to have a different stand point

SF2TH