Vegasmelter1
New member
- Joined
- Feb 23, 2015
- Messages
- 3
Hi guys. Great forum here, learn something new every day
Had a few questions/concerns about a smelting technique we employ here that
Is more of a by-product of stone removal from scrap jewelry. We use a modified AR
Solution comprised of muriatic acid and SubZero to loosen the stones, then we boil off most of the water after filtering out all the stones and pieces of gold that weren't dissolved and then neutralize/dry the remaining solution with zinc powder. We then put everything in a crucible after it's dry, and melt it all together. Usually there is little to no weight loss of the gold by using this process, it's just very noxious.
The biggest concern I have is the type of gasses released from smelting this type of material, as well as wondering if there might be a better way to do this type of stone removal. The biggest problem I have is the time window, as I cannot wait for AU to completely dissolve in AR so I can precipitate it. My time window is 24 hours.
Any comments will help. Thank you in advance
Had a few questions/concerns about a smelting technique we employ here that
Is more of a by-product of stone removal from scrap jewelry. We use a modified AR
Solution comprised of muriatic acid and SubZero to loosen the stones, then we boil off most of the water after filtering out all the stones and pieces of gold that weren't dissolved and then neutralize/dry the remaining solution with zinc powder. We then put everything in a crucible after it's dry, and melt it all together. Usually there is little to no weight loss of the gold by using this process, it's just very noxious.
The biggest concern I have is the type of gasses released from smelting this type of material, as well as wondering if there might be a better way to do this type of stone removal. The biggest problem I have is the time window, as I cannot wait for AU to completely dissolve in AR so I can precipitate it. My time window is 24 hours.
Any comments will help. Thank you in advance