Roasting Gold Concentrates
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- čas přidán 27. 08. 2020
- What to do with all your leftover concentrates? Ever try "roasting" it to get more gold maybe?? Roasting is a technique of heating up the sulfide ore to a high temperature. This breaks the sulfide to an oxide and more metallic particles are released. Anyway, this was a rudimentary testing of that process on some of my North Saskatchewan River concentrates. Please take proper safety precautions if performing this task as it can release harmful gas into the environment.
See you out there!
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I don’t process without roasting anymore. Throwing it into cold water while hot helps a lot. It cracks the varnish stuck to the gold and releases it. Good video.
good to know, thanks for the comment :)
Awesome camera work! Thank you .
Glad you enjoyed it!
All my super fine gold gets fed to my flower gardens along with the sands.
My back alley should make someone some money someday!
that was cool fam. going through my tailing to lol. GOLD SQUAD OUT!!!
never throw it out!
Might have to try that. Thanks
try it and let me know how it went!
Right on video thats a good safe way roasting it... always good watching your vids ⛏
Glad you enjoyed
I have been observing people go through a lot of trouble getting the flour gold. In Lab I would use a centrifuge to concentrate it. and if there are platinum group metals they will concentrate too. With heaviest at bottom and lightest at top. Will even stratify into layers.
year or use chemical extraction
Rad video I noticed didn't mention brushing the table before entering your material to remove all air bubbles off the mat. Brushing It Off does that really matter?
Yeah the bubbles can interfere with dynamic flows of active matting
Hey Dave! Good to see another video! Watching the Miller table in action was satisfying!
Does that mean you will now have to spend a few nights roasting all your cons? Lol
That's the plan!
I don’t know if you planned on doing a video on it, but I’d personally like to see it. It would be interesting to see if it recovers enough to warrant doing. I’m guessing yes. Super easy do have them in a pan and just toss it on at the end of the night.
Thank you for the video. Please what chemical process can I use for this? Also, which process is the most effective for releasing the gold? Thank you very much
Heat is the chemical process as it releases the (loose) molecular bond in the sulphides.
About time you posted a video
I did it just for you!
Its a beautiful thing watching the sands separate from the sulfides separating from the gold on your Millar Table , have you ever thought of selling paydirt or paysands ? I'd love to try panning some North Saskatchewan River blacksand , i finally had the chance to pan about a month ago but sadly my house was broken into while I was at work and they took my 0.03 grms gold along with my sons video system and a few more items of value. And yes they got my metal detector that had the sticker you sent me a year ago on it , probably drug addicts. Stay safe out there , best regards as always from Lloyd somewhere here in Southern Ontario Canada 🇨🇦..
oh no thats terrible. Email me your address I will send you some more.
Good video!
Glad you enjoyed it, thanks for the visit!
Groovy gold ,well in . I. Currently trying the viningar method . Still waiting 3 days in lol . ☠☠👍👍👍⛏💙
Did it work?
@@BackyardProspector still trying lol Arrrrrrr☠👍👍⛏💙
I thought you throw that out into the garden and let it grow into bigger gold . Why does the miller table work ? does it have a lot to do with the weight and shape of the material . as NSR gold is flat as apposed to the blonds and Black sands that are more rounded . The blonds are first out because they are lighter than the black?
I might have to go into the garden and retest some of my old material lol
Request for Ennio Marconi "The Ecstasy of Gold" in future amazingly recorded video👍🤩
It appears to me that the brush creates too big a disturbance and enables gold to migrate down the table…smaller brush or snuffer?
I agree, thank you!
Love that fire pit. Greetings from Edmonton.
Thanks 👍
I think it may be cool to see if you just melted all the Cons with little Borax or whatever flux you could and see what you end up with
I actually have a video planned for that. Just ordered my melting kit!
@@BackyardProspector subbed to see the videos. 👍🤠
Cool video buddy I really like your fire pit. I was told to recrush all my roasted material to unlock microfine gold locked up in the sulphites .
Very cool, let me know how that works out!
Very interesting video. Well done and informative. We do a similar process to remove desert varnish. After roasting the cons are thrown into cold water. Good recovery from those cons. Do you know the weight of the cons versus the weight of the gold recovered? Thanks for sharing this video. 😎👍👍👌👌⛏⛏
No I just decided to do it one night. One day I will really document the process and determine a recovery %. Thanks for watching and commenting!
Hey Dave hope all is well..⛏
Hi Paul, I'm good. Very busy going back to school and such. How are you doing?
@@BackyardProspector Thats good to hear you doing ok. Im ok staying busy on the farm always looking forward to next season
it's not necessary to dry or roast concentrate for more than a couple minutes..
I just left it on the fire overnight
Without a closed loop recirculator pump system with 'jetdry' the water surface tension floated the gold off the table and most likely out of the pan ... Your choice your loss so either 100% best effort or sloppy technique for whatever falls... Good luck!
I do try to use some jetdry in any closed loop systems I use for separating cons. I probley just didn't show it in this video. Thanks
The problem with trying to mechanically separate gold from black sand is that it is a fools errand. You see only 15 to 20 percent can be seen with 20-20 vision!!! The other 80% is below visual level, microscopic. Every thing below 100 mesh just can't be seen, but the gold goes down to 300 mesh!!!!! You have to use amalgamation to get it all out!!! Get you some mercury and a rock tumbler and learn how to recover 100% of your mercury, either by retort or nitric acid and a small bottle of quicksilver will last indefinitely. Both Jeff Williams and Two Toes have excellent videos on amalgamation. Till you do, you will continue to throw away 80% of your gold!!!! A Miller table or a blue bowl are excellent if your intent is to throw away the 80% and keep 20% ;) Those of us that are greedy enough to want the whole 100% got rid of such a long time ago!!
Great, thanks for the advice!
I appreciate the positive upbeat dreamy music.
Just a quick suggestion; ... after aprox. 30 mins of roasting the cons at aprox. 1,000f - dump them in cold water ... this will shock the black sand and turn them brittle ... then take the brittle cons and subject them to a light crush ... then run thru Miller Table
I have heard of that. I will try that, thanks!
So when you're roasting sul fides what happens is tiny molecules of water and oxygen burst from the insides of the sulfides to the outsides and break holes in it that's what releases the tiny particles of gold It's just like oxidized coal the water just burrows holes microscopic holes and it and just tears it to pieces and gives it much much more surface area same process with sulfidolphins oxidization is Wanted outcome
That is an excellent explanation. Thanks!
Wouldn’t it be simpler to just wash the blonds and trash off the cons then smelt it all out in one shot?
It might be, if I had something to smelt it in...stay tuned
Do the chemical thing! People try to do it themselves- Dangerous!
true dat, need to do some research first.
Please how do you do the chemical one?