GoldHappy
Active member
- Joined
- Jul 8, 2012
- Messages
- 33
We're leaching ore (ground down to 100-200 mesh) that came from a volcanic mud flow and using SSN/butyl/oxalic for leach/recovery. We sent a 3 lb sample to a company in Idaho that leaches/extracts/tests for large companies to see if any gold could be recovered. They sent results back and said SSN was the best leach to use for our ore and they did recover gold. We've had poor results, but recently discovered the ORP is supposed to stay above 800 and preferably above 900 to put the gold into solution and keep it there. We checked and the ORP was around 600+, but never above 700. In doing a little more research we've discovered a pre-leach/pre-wash with HCL might be beneficial and enable us to get the ORP up where it needs to be. We're going to do the pre-wash today.
Has anyone had experience with getting the ORP up on SSN and keeping it up? We'd love to hear any other comments/suggestions you might have on using SSN. Thanks!
Has anyone had experience with getting the ORP up on SSN and keeping it up? We'd love to hear any other comments/suggestions you might have on using SSN. Thanks!