Roasting Gold Concentrates

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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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Опубликовано:

27 авг 2020

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Комментарии : 63

@danielbough1764 19 дней назад

All my super fine gold gets fed to my flower gardens along with the sands.

@BackyardProspector 15 дней назад

My back alley should make someone some money someday!

@croatiancroissant28776 2 года назад

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.

@BackyardProspector 2 года назад

good to know, thanks for the comment :)

@GSProspecting 3 года назад

that was cool fam. going through my tailing to lol. GOLD SQUAD OUT!!!

@BackyardProspector 3 года назад

never throw it out!

@christcommanded7097 6 месяцев назад

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

@BackyardProspector 6 месяцев назад

That is an excellent explanation. Thanks!

@slackwaterplacer 3 года назад

Awesome camera work! Thank you .

@BackyardProspector 3 года назад

Glad you enjoyed it!

@topcatgoldprospecting 3 года назад

Might have to try that. Thanks

@BackyardProspector 3 года назад

try it and let me know how it went!

@pault9624 3 года назад

Right on video thats a good safe way roasting it... always good watching your vids ⛏

@BackyardProspector 3 года назад

Glad you enjoyed

@chrislilly1463 3 года назад

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

@BackyardProspector 3 года назад

That's the plan!

@chrislilly1463 3 года назад

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.

@daveandersen3227 Месяц назад

Request for Ennio Marconi "The Ecstasy of Gold" in future amazingly recorded video👍🤩

@BackCountryWrenching 3 года назад

About time you posted a video

@BackyardProspector 3 года назад

I did it just for you!

@highenergyog 3 года назад

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 🇨🇦..

@BackyardProspector 3 года назад

oh no thats terrible. Email me your address I will send you some more.

@DR_SOLO Год назад

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?

@BackyardProspector Год назад

Yeah the bubbles can interfere with dynamic flows of active matting

@Jbakerhausgsd 2 года назад

Good video!

@BackyardProspector 2 года назад

Glad you enjoyed it, thanks for the visit!

@DR_SOLO Год назад

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

@BackyardProspector Год назад

I actually have a video planned for that. Just ordered my melting kit!

@DR_SOLO Год назад

@@BackyardProspector subbed to see the videos. 👍🤠

@obioraferdinands7655 Год назад

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

@BackyardProspector Год назад

Heat is the chemical process as it releases the (loose) molecular bond in the sulphides.

@piratedredger1857 3 года назад

Groovy gold ,well in . I. Currently trying the viningar method . Still waiting 3 days in lol . ☠☠👍👍👍⛏💙

@BackyardProspector 3 года назад

Did it work?

@piratedredger1857 3 года назад

@@BackyardProspector still trying lol Arrrrrrr☠👍👍⛏💙

@joeg875 2 года назад

Love that fire pit. Greetings from Edmonton.

@BackyardProspector 2 года назад

Thanks 👍

@bartbley1269 3 года назад

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?

@BackyardProspector 3 года назад

I might have to go into the garden and retest some of my old material lol

@brentsmith981 Год назад

It appears to me that the brush creates too big a disturbance and enables gold to migrate down the table…smaller brush or snuffer?

@BackyardProspector Год назад

I agree, thank you!

@whiterockwp6934 2 года назад

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

@BackyardProspector 2 года назад

I have heard of that. I will try that, thanks!

@IrishAndy001 3 года назад

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 .

@BackyardProspector 3 года назад

Very cool, let me know how that works out!

@pault9624 3 года назад

Hey Dave hope all is well..⛏

@BackyardProspector 3 года назад

Hi Paul, I'm good. Very busy going back to school and such. How are you doing?

@pault9624 3 года назад

@@BackyardProspector Thats good to hear you doing ok. Im ok staying busy on the farm always looking forward to next season

@OlderThanDirt-ii3rp 3 месяца назад

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!!

@BackyardProspector 3 месяца назад

Great, thanks for the advice!

@JosephBoxmeyer 2 месяца назад

I appreciate the positive upbeat dreamy music.

@douglaspohl1827 Год назад

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!

@BackyardProspector Год назад

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

@brentsmith981 Год назад

it's not necessary to dry or roast concentrate for more than a couple minutes..

@BackyardProspector Год назад

I just left it on the fire overnight

@CandSMINING 3 года назад

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. 😎👍👍👌👌⛏⛏

@BackyardProspector 3 года назад

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!