beachbum1975
Well-known member
Sorry to bring up an old forum post, but I need some clarification on Steve's original instructions.
Here's the original post: http://goldrefiningforum.com/phpBB3/viewtopic.php?f=53&t=5994 entitled "What to do with Acid Peroxide after removing the gold foils"
Backstory:
I have re-purposed an old 5 gallon homebrewer bucket to act as my spent AP solution holder. I have processed 2 x total batches of fingers and now my bucket is filled to the brim.
I have a lingering feeling that much of my gold precipitated prematurely during the initial AP process on my second batch because after processing 5.5 lbs of high gold content fingers, I have a very small amount of brown powder in my pyrex beaker (after processing with HCL/Cl, then dropping with SMB).
The spent AP bucket (after allowing time to settle) is 50% dark brown/black and cloudy at the bottom, while the top 50% of the spent solution appears clear green.
Having said that, let's refer to Steve's comments:
1) The "black powder" - From Steve's quote above, is the black powder he is referring to the stuff I want to siphon from the bottom of the barrel and process in HSL-Cl?
2) The remaining greenish liquid – After siphoning all the darkness away, do I add the iron to the green solution?
3) Am I reading this entire thing incorrectly? 8)
I can take pictures and post them after work tonight if that helps.
Please let me know your thoughts…
Thanks in advance,
Beachbum1975
Here's the original post: http://goldrefiningforum.com/phpBB3/viewtopic.php?f=53&t=5994 entitled "What to do with Acid Peroxide after removing the gold foils"
Backstory:
I have re-purposed an old 5 gallon homebrewer bucket to act as my spent AP solution holder. I have processed 2 x total batches of fingers and now my bucket is filled to the brim.
I have a lingering feeling that much of my gold precipitated prematurely during the initial AP process on my second batch because after processing 5.5 lbs of high gold content fingers, I have a very small amount of brown powder in my pyrex beaker (after processing with HCL/Cl, then dropping with SMB).
The spent AP bucket (after allowing time to settle) is 50% dark brown/black and cloudy at the bottom, while the top 50% of the spent solution appears clear green.
Having said that, let's refer to Steve's comments:
Questions:The black powder must be removed / filtered out before adding any iron to the mix. Once iron is added the copper will precipitate and the solution is no longer usable.
To get gold out keep dissolving copper based items (fingers, some non-magnetic types of cpus and pins) until the color of the solution turns nearly black. Once the AP solution is black there will be no gold dissolved in the solution. At this point let it settle 24 hours and filter out the fine black powder (gold + contamination) Refine this material with HCl-Cl to get your gold back.
1) The "black powder" - From Steve's quote above, is the black powder he is referring to the stuff I want to siphon from the bottom of the barrel and process in HSL-Cl?
2) The remaining greenish liquid – After siphoning all the darkness away, do I add the iron to the green solution?
3) Am I reading this entire thing incorrectly? 8)
I can take pictures and post them after work tonight if that helps.
Please let me know your thoughts…
Thanks in advance,
Beachbum1975