I dont have any gold leaf to process, but Gsp, you have me curious now.
The gold leaf video I watched that was posted by another member showed them putting it between special paper. Would AR be too acidic and break down the paper and(i think it contained) waxes, causing a gel or tough filtering time.?
Would HCl and bleach be a better methodology for putting the thin gold into solution, and possibly not destroying the paper?(which would in turn leave its own issues with rinsing and collecting all auric chloride)- but, I see it would have the advantage of dilution, which would save on acids, and hold the chlorine from the bleach in solution better.
I only ask, because I may soon have the opportunity to refine some gold leaf that is "loose leaf" and filtered waste (the filter from an air system that will be in place while a friend is having the gold leaf redone in his office (in his home), as well as the carpet -which is the same carpet that was in place when it was originally done with gold leaf 50+ years ago)
So two more questions come to mind.;
Would the carpet be a viable source of gold from the flakes and leaf?
And which of the oddball gold strippers would you be mentioning in your post - ecogoldex? Or?
Thanks in advance