I have two stock pots, a 3 gallon and a 5 gallon, and both have the same waste solutions from doing the same refining processes of the same source materials, yet only the 3 gallon cements out copper, the 5 gallon yields nothing.
Both pots have a lot of copper, not only from the gold plated pins and connectors I had processed but also from the scrap copper I had added to see if I could get any gold out of the solutions which I may have missed. The point is, I know there's a lot of copper in the 5 gallon pot, so it's not a question of nothing cementing out because there isn't anything there in the first place.
This next image of my 3 gallon pot shows the copper cemented out on my rock hammer, notice that the hammer is practically eaten all the way through the handle part. When I first added the hammer, the reaction was immediate, thick amounts of copper cemented out, enough so that after a day I knocked off a 1/4" thick layer of it.
The next image of the 5 gallon pot just shows that no copper cements, the "mexico" on the rebar was submerged for days and it's still void of copper.
There's only one difference that I can think of between the two pots, the 3 gallon is older, it had been sitting out in the sun evaporating and concentrating for a month before I added the iron, it went from about 2-1/2 gallons down to its present volume of about 1 gallon. It's deceptive but there's not more than 3" of solution in the bucket.
Maybe the solution in the 5 gallon pot is too dilute, could the answer be as simple as that, or is there another explanation? Any suggestions as to what I can try?
Both pots have a lot of copper, not only from the gold plated pins and connectors I had processed but also from the scrap copper I had added to see if I could get any gold out of the solutions which I may have missed. The point is, I know there's a lot of copper in the 5 gallon pot, so it's not a question of nothing cementing out because there isn't anything there in the first place.
This next image of my 3 gallon pot shows the copper cemented out on my rock hammer, notice that the hammer is practically eaten all the way through the handle part. When I first added the hammer, the reaction was immediate, thick amounts of copper cemented out, enough so that after a day I knocked off a 1/4" thick layer of it.
The next image of the 5 gallon pot just shows that no copper cements, the "mexico" on the rebar was submerged for days and it's still void of copper.
There's only one difference that I can think of between the two pots, the 3 gallon is older, it had been sitting out in the sun evaporating and concentrating for a month before I added the iron, it went from about 2-1/2 gallons down to its present volume of about 1 gallon. It's deceptive but there's not more than 3" of solution in the bucket.
Maybe the solution in the 5 gallon pot is too dilute, could the answer be as simple as that, or is there another explanation? Any suggestions as to what I can try?