Gold in A/P soultion

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tbols

New member
Joined
Sep 18, 2020
Messages
3
HI, New at this gold recovery thing, can anyone tell me how to recover gold from A/P solution did a Stannous test on it, very positive, how do I get it back???? Thanks
 
Welcome to the forum.
Simple way is to add more product, as the copper goes into solution the gold cements out as powder, this also makes sense in using up your acid.
 
Copper is a more reactive metal than gold. Do a little study on the reactivity series of metals, also study how metals that are more reactive can be a reducing agent for the less reactive metals.

Adding copper to the solution will displace gold from the solution (precipitate the gold as a dirty black gold powder) as the copper dissolves it provides electrons to the gold ions in solution, the gold ions receiving electrons are reduced to gold atoms which clump up into large enough clumps to precipitate from solution as a contaminated gold metal powders (which can be refined).
 
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