gold tramp
Bronze Member
- #61
Thread Owner
Some folks got it some dont,
Any ways im done with this thread.
Gt.
Any ways im done with this thread.
Gt.
Can you give us a idea of the "Micro pockets" at this mining area or district? This could give people hope even with just hand tools to start with. Thank you everyone for the interesting posts.And Herb....you've got it..
Having been to your camp, I know what it takes to get the gold
out of there, and damn few could do it...even less with the small
amount of tools you use.
Hope you and the family are doing well..always thinkin about ya's!
Some folks got it some dont,
Any ways im done with this thread.
Gt.
Yes gold tramp is using tried and proven methods to reduce rock down to powder size material. The rest of us out here may not be able to do this in this day in age. Heck the jaw crusher this one is trying to work with is from the late 30's to late 40's and this one can tell you that many people may not be able to rebuild one to use. Hope this one's back can take the sledge hammer part just to get the rock small enough for the jaw crusher..........LOL.Please don't leave on my account. We are no better than you, just taking a slightly different route.
Clay some things in millin are gaurded secrets, it takes much training in the field and lab, this dont come free.
So it isnt givin for free.
I have a pachuka tank set up, thats about as far as i can go for free like i said its gaurded secrets of millin, you dont see any others going into detail.
Now if you want to bring some good ore that we can work on together, you pay for the chemicals, we can do this in just a few days start to finish, bring your camp setup.
A big bottle of crown, i supply the camp the mill, and the gas for smelting.
This is really the only way i can show you maybe somebody else can go into detail.
Just tryin to estamate chemicals needed is a chore , one needs to know how much concentrate they will end up with after pre treat, maybe you dont need leachant at all if values are larger size no need to leach, amalgamate, many differant variables.
Lets just say thiis, this stuff gets deep.
GT,,,,
Wow..Can you delete your stuff off my thread this is my show go start your own
Very detailed brotha! Thanks for the info.For folks wanting general guidelines, here's what I would give you as an overview.
Take a jaw crusher, reduce your ROM (run of mine) ore to between 1/2" to 1/4". Run that through either an impact mill or roller mill. Or buy a Keene 46DR and get two for the price of one.
Next step, impact mill to take it to P80 sub-75 micron. What doesn't pass as larger than 75 micron run it through the impact again.
Third, gravity separation. You've got a few choices in mineral jigs or shaker tables. Hydrocyclones and such are out of the realm of the artisanal miner. You've separated your macroscopic gold, now onto micro. You'll also need to assay your tailings to determine if your gravimetric circuit is working. It may be as simple as running your tails across a scavenger table or running them again over the same table by themselves.
If you've got a lot of sulfides you can roast or bio-ox. Pretty much the simplest ways for small scale folks.
Cyanide at 5-15 grams per liter with 2:1 water to solids, unless you want to do intensive cyanidization. If you run intensive, 15-25 g/l which will also grab a lot of gold out of light unoxidized ores. Best to run it at 30C or better. Don't mess with this though if you're a first timer. pH control is imperative as is the activation of the cyanide, disposal, and tailings processing.
3-4 days retention time for standard cyanide, 24-48 hours or less for intensive. If you're pushing tonnage, then that changes. For small scale guys, those two retention timelines will grab you 90% plus of the freemill. If you're unsure of your recovery, send the ore off for roll bottle testing at a certified lab. You can use a hot tub blower to inject air into the system to maintain the proper O2 levels as cyanide leaching eats it pretty good.
Finally, off to either Merrill-Crowe or Activated Carbon. If you're working with concentrates averaging over 1 ounce per ton of concentrates, which you probably are, Merrill-Crowe is by far the most economical. Filter your zinc residue, then smelt your gold. So easy even a cave man can do it. So easy to mess up that even an advanced miner can screw it up.
There are dozens and dozens of texts for this and tens of thousands of research articles explaining how to run an effectively gold recovery circuit; and yet you can take that body of knowledge and need to distill it down to what is going to work and what is going to put you on food stamps. Each ore has to be tailored to see how it runs, which is exactly how you mentioned it, better to see it done in person.
Like they say, the Devil's in the details and it's what Mad Machinist, myself, and StreamlineAudio are working on. Bringing our examples of what works in our ores to the mining public so the curtain can be pulled back a degree and get some folks some of that sexy shiny yellow stuff.
Keep digging it GT!