How Much Gold Is Lost In Gold Smelting Slag & Spent Gold Smelting Crucibles?

[@ChrisRalph]

You should consider parting the combined beads. Take a bunch of your beads, add some copper, (maybe twice the weight of the gold-silver bead) and remelt it all into one, then flatten the resulting large copperized bead, and dissolve it in Nitric acid. The gold will remain undissolved and can be made into a pure gold bead, the copper and silver will go into solution and after neutralizing the excess acid, the silver can be dropped out of solution with sodium chloride as silver chloride and the precipitate can be turned into a pure silver bead (thus parting the gold and silver).

[@mbmmllc]

Hi Chris. Yes I have been thinking about getting into the acid side of things. Makes me a little nervous, but it would be a good addition. One of the things that has held me back is there is really no monetary value in doing it, correct? A PM refiner will pay the same for the gold and silver regardless if it is alloyed or separate is what I have heard. They are only concerned with getting precious metal alloys without a bunch of base metals or black sand. Thanks for the comment and keep watching for more vids :)

[@hairypunter6170]

@@mbmmllc Use silver instead of copper, with the same process, it uses much less Nitric (1/4th) to do the same job..:-)

[@jackmclane1826]

@@mbmmllc If you have a refiner that pays you the full value of the materials minus a small share for the work, it doesn't pay off. I just like to do that because I keep the gold. I never sell gold! ;)

[@johnh8615]

Sreetips is already doing it check him out.

[@gasa7264]

But there will be some beads of lead so how you can seprate them with nitric acid from precious metals because the lead will precitapate and mixed with the undissolved gold How to separate gold from lead percitapate in nitric acid ??

[@richardrobertson1331]

Great video. Love your tenacity. Some of your newer viewers may not understand these cupels are special (bone meal, burnt antler or magnesium oxide) and lead is not soluble in them . . . lead oxide is quite soluble in them, and that's why you open smelt them or keep the furnace door ajar. I think your thought process on precious metal loss in crucibles is in the back of all our minds. Very glad you did all that work with the camera running. And, I especially liked your discussion at the end. Thanks for posting.

[@haroldishoy2113]

Thank you for another interesting video and description, I just might binge watch several episodes on a Saturday but first to get a popcorn maker😁

[@RichardRoger1966]

I love the colours and moving patterns from the molten material...

[@briansherret5268]

Yes, it reminds me of the latest videos they have of the surface of the sun

[@alexanderwingeskog758]

It's really mesmerizing!

[@daveshaddix9425]

ñ

[@billearnshaw1074]

Well Done, when i worked at a refinery, all cupels were saved and crushed before Christmas (bonus), which was then run through a gravity concentration. On average we would get an ounce from a 55 gal drum. About 10% goes into the cupels...

[@themacz1671]

I knew there was some silver left in mines lol thank you for the information another great video thank you for sharing 👊👊

[@redbaronrefining5322]

I’ve been waiting to see if you’d upload something like this!!! I’ve saved all my crucibles and slag over the years and can’t wait to process them like you!

[@mikejohnsen1795]

Justin Goode makes two f us.

[@Mobmotors]

@@mikejohnsen1795 make that three...

[@kerzwhile]

Brilliant! What a service you provide on top of your great companies offerings!!

[@heathstott]

Hi I’m in Adelaide Australia, I am fascinated with your videos, I recently bought a a 1 kg block of silver to get me into it, well I’ve made about 30% on my bar so far. Your teaching me some great things.. keep it up🥩 love it. Beefcake castings.😍

[@kahnfu-zhin8627]

I have learned so much from watching your videos. Thank you for teaching me the stuff I am so interested in. Following you faithfully. Want to run a turnkey system so bad!

[@njrasmussen5515]

I love the way you always add the hot work very good visuals of the molten metal and that pyramid looking thing it reminds me of the grains on the Sun when you see pictures of a molten star surface great videos keep up the good work

[@snoozin99]

Great Video, keep them coming and loved the bonus ending there; very cool :)!

[@gibber-lx8he]

Gotta love watching you Jason really great content making me want to experiment smelting the gold that I have but learn everything about the process to begin with Keep up the great videos

[@alanmorgan2536]

I processed some slag from refining and found about 5g/kilogram of micro-spherules. It was a process in itself to break down the slag and sort the output through standard sieves. I ran the results through a blue bowl to remove some of the heavies that were left behind from burned CZ's and other junk left in the jewelry.

[@alanmorgan2536]

Im willing to bet you will get more if you mill down the slag by pulverizing down to 1mm or smaller size.

[@pneumatic00]

Very interesting video, I really appreciate your efforts "filming" and editing them. Under the topic of "nothing's free" you could have alternatively engaged in Aqua Regia dissolution and purification of your residual gold....and then you'd have chemical costs....lots of glassware...costs for far more serious fume extraction (Nitrogen dioxide scares the living crap out of me) and face shields and gloves...waste disposal costs; not to mention the hazards of messing with nitric acid which one day could blind you in an accident. On and on. All in all, I greatly appreciate your vids!

[@missionoutdoorsITM]

There's a refiner on KZbin called "Streetips" who chemically refines scrap gold down to 99.99% fine gold! But he only does it with batches that are big enough to be worth it cause it's a long and costly process as far as the amount of chemicals used. It's amazing having the perspective of watching gold being melted down and refined on one hand with heat and on the other hand with chemicals.

[@michiganprospectors]

Bummer when experimenting with all the old broken crucibles, this one breaks. I like how you show your success and failures for us to learn from.

[@tiarawillis8852]

Cô giáo Mây thật chu đáo... Tết có nhạc mới thành mùa Xuân...!! Chúc Cô giáo năm nay cũng được Long Phụng sum vầy nhé...!!!❤👍

[@jaratt85]

It must be great to be able to afford all those big machines. I can't even afford to buy a TIG welder.

[@jeffarto8340]

Are your crucibles cured with borax before you use them? It looks like it is not and that is why they break so quickly for you.

[@matter3232]

Thx for the video ,it cleared up the question of loosing gold in the pore

[@yardmine]

You're killing these videos man. Nice work. Really enjoy watching the process.

[@shaneyork300]

You got more than I thought you would!! Good Job and Good Video!! Have a GREAT Day!!!

[@rickb5946]

Can you explain in laymans terms how a cupel manages to absorb all metals except the gold and silver?. What is a cupel made of?. Another great video, you always make the complex seem simpler!.

[@jakestarr4718]

Cupells are made of animal bone, calcification process

[@stickhillfarm]

Great content Jason, love the science behind your rabbit hole trips into smelting. How is the foundry? Can you do a nordic gold or other odd alloy pour?

[@welchianachi7707]

Would not be easier to use blowtorch to conglomerate those tinny beads to the one bigger? Using simple can gas blowtorch I was able to melt around 30g of sterling on improvised melt-dish made from sharpening stone formed into a bowl shape.

[@richardservatius5405]

check the final product with the XRF.

[@paulscottpadgett1996]

Much Respect 💪

[@garyv2498]

Those close up cuppeling shots are great!

[@ManMountainMetals]

ah yeah, this is gonna be good!!

[@399taz]

Hi, What would you do with 18k white and yellow gold beads? Is there a way to make into bar form? If so, how would I go about it?

[@GR19611]

Your setup is so cool,love it.

[@slateweaverjem]

very informative show mbmmllc, they all are ...keep it up ...J

[@paullong4471]

God bless your works..Good luck!

[@paraglidingprospector]

Here again for a rewatch

[@moneybox5733]

Jason, I enjoy watching your videos and I'm trying to learn how to process my gold dust. I'm collecting gold in the dryblower and a lot of black sand along with it. I melted 62g of gold dust in a potato with a bit of borax and ended up with an ugly looking 54g nugget. Then I tried to cupel the nugget in a bed of grey cement using a chunk of lead from a heavy wheel weight. The result was a disaster. I got a nice 42g chunk of shiny gold but a lot of gold is scattered throughout the cement. Any suggestions on retrieving my lost gold? Phil

[@johnnyllooddte3415]

from our operations in the congo,, id say you/we lose over 50%.. from start to finish..maybe more.. we recover about 50% of known heavies.. chemical analysis shows about 30% losses..and we guess another 20% lost as fine golds or dissolved gold in the water.. it can be recovered but with lots of chemicals and we dont want to do that

[@johnnyllooddte3415]

i have no clue how much is lost in smelting

[@dr.a006]

Quite the orchestra of machinery.👍

[@cditzler6313]

cant wait to take a trip to oregon by baker city to visit her and possibly come up yer way to meet and see yer stuff 1st hand be knarly its also been added to me bucket list highly enjoy all your vids great job

[@blameusa7082]

Wow man you really get through the slags!! Good man!

[@storagedealsonwheels9159]

How do you separate the gold and silver. Where do you sell the finished product?

[@DDLMilkshake]

Can you start with lead oxide and make a cupel lid to prevent fumes from rising? Since it would be in an oxide state it should still absorb smoothly, right?

[@vadenk4433]

Hey Jason, have you ever had any molten metal “explosions” from pouring molten metal into a mold with too much moisture in it? I’ve seen some scary videos of molten metal blasting right back up into peoples faces because they somehow forgot to preheat their mold before pouring a bar of gold or lead

[@thebodgingbigfoot4014]

yall are the ones I need to send my bucket of dirt too for that assay lol.

[@myfastcars]

How would you separate the silver from the gold? Would you be able to keep the silver and the gold if you separate them?

[@BillMulholland1]

Hey Jason. I fallow Dan Hurd Prospecting. He’s a high school teacher. Very knowledgeable in this as well. He might have som ideas. I know this is from a while ago but… Thanks 🍻👍

[@gregj4857]

And today we are going to grind up our grinder to see how much gold we lost in the grinder, next week we grind up the lawn. 😁

[@DrHolmesPhD]

Would you consider making a video of just watching molten metal cool? The patterns and motion are great for relaxing to

[@KowboyUSA]

Good test. I been wondering if you've been losing some of the precious metals.

[@herbertboelk7545]

Very interesting to know, indeed. But not worth putting all that investment in time, materials and fuel in it for those who want to know. Well done anyway.

[@RedmanOutdoors366]

Jason how Dare you recover the losses 😂👍💯🇺🇲🍺

[@shanejohns7901]

I think most of your lost gold is going to be in the slag itself, in the form of compounds with like sulfur. You'd have likely achieved a much greater amount of gold recovery if you had simply taken all that slag and re-melted it in the presence of an iron bar -- to displace the gold ions with the iron, causing the gold to drop out.

[@josephpecoul6532]

Thanks Jayson really like the channel.

[@jimmierturner3597]

Thanks!

[@frankromero5581]

I was wondering if you have ever smelted lava rocks to see if they hold good metals ?

[@ericchamber1614]

do you think this processes would work with gold plate pins to recover the gold off them?

[@christiecrawford6119]

Should make a video on smelting the pins

[@LMAFOPartyRockers]

Why do you use the electric furnace on the Final step versus your propane smelting furnace?

[@Slavicplayer251]

propane is to violent and might cause the bead to fly out the crucible

[@kevinm3349]

what about the gold that is too small to go through the shaker table? rather than using mercury or cyanide, why not try some thiourea to recover the gold. I havent seen any small miners on youtube demonstrate the technique; would be cool to see.

[@TimeSurfer206]

Always! Save the trash and run it again. You never know when you might have had an expensive "Oops!"... But you didn't see it happen! (Edit) Oh! Silly question time. Is there a cost-effective way to recover the lead from the cupels?

[@JR-du3wi]

Very good point here. These guys are professionals, so their losses are low when processing slag. Anyone starting out could be making a lot of mistakes they didn't know about. Never hurts to save the junk and get at it another day!

[@AshrafAli-ry2sx]

What about lead cupluation crucible can you recover lead

[@ricklipp4029]

I’m looking for a vid showing how you recoup the lead from the used cupels. Would you please help.

[@loretojrcadungon9901]

Very nice. i got expirience watching.

[@jamesmclaughlinprimitivele4587]

Short answer before I even watch the video is yes, if your good it's not enough to worry about.

[@cavelvlan25]

Damn that is alot of slag.

[@damxgopak457]

Your turn key sys.sure makes it easy.thanks for the informative vid.

[@texan4life129]

I want to see the bottom of that holding tank for the reused water.

[@pixelpatter01]

What are your thoughts on soaking all those pulverized fines with a cyanide leaching solution to recover any gold?

[@TimeSurfer206]

Amusing thought, but the only way I personally would be comfortable playing with cyanide would be a triple-containment, ventilation filtered system. Using a robot. "A strange game, Professor..." I'd actually use Aqua Regia.

[@user-pk5dc1rp8e]

تحية لك سيد جايسون خلال تجولي في احد الغابات وجدت مكان قديم جدا لصهر واستخلاص الذهب وهو مليء بنواتج استخلاص الذهب هل من الممكن استخلاص بعض الذهب من هذا المكان

[@2HighNoon]

What about smelting the dirt on the side of a highway and recovering platinum/palladium? I seen a video once of a guy doing it, wanna test the idea?

[@Slavicplayer251]

cody’slab ?

[@katreyu2967]

I could see that working in somplaces 😂😅

[@keithmcleod5662]

so you spent all that time and money for 2 grams, 1 gram of gold, $54, 1 gram silver, $0.50! and you make no mention of all the costs to produce it?

[@curt2742]

Yeah but this was experimental, it answered the question of whether or not it was worth processing that material, which normally could be thrown with your melts as you go. Maybe not worth it on it's own, but it gives some perspective on your losses.

[@bkailua1224]

I was also wondering the cost, but if it just a hobby and for entertainment you could justify it. Not much sense in spending $100 to recover $50 .

[@skoitch]

Hope you wear a respirator while crushing, that dust is some nasty stuff.

[@Veptis]

The goldsmith with collected gold filings of the tools. The refinery recovers gold from shoes and hair... The miner and mill ... Does not recover any gold?

[@devindiep8057]

I have a question that I have can be answered. If I have 10 ounces of 10 K gold and I wanted to refine it to 24 k, After the refining process and everything, how much 24 k would I have?

[@briandrew2689]

how do you get the silver out of gold bead?

[@martijnehlers9162]

Hydrometalurgy

[@harrickvharrick3957]

Where does that lead go, that you use to refine your precious metals in your cupel (if I write that correctly)?It gets stated it "oxidises off", but what does that mean.. does it get away Into the air, in gaseous state?

[@ssteele1812]

The lead oxide is absorbed into the cupel. It is the reason that it changes color.

[@noahfischer3088]

Neet but can you remove the lead from all the cupel s

[@ukdnbmarsh]

chuckles @ slag, bit of a naughty word over here in england

[@curt2742]

Lol, what do you call what we are calling slag?

[@painmt651]

Surprised how little you seem to have left behind!

[@richardsamuel1379]

How do you separate the gold from silver

[@zahidbugti5467]

Pls how you mix in stone.plz help

[@royalgold4477]

Have you tried any dental alloys? they have multiple precious metals.

[@pekkarousu3616]

All that slag, cupels (100 pounds?) and only 1 gram of silver and 1 gram of gold. Silver $1 and gold $50. Was it worth $50? Looked as hours of work.

[@michaeldenison7339]

I do silversmithing as a hobby. I want to recover the silver that I, and others in my classes, lose when filing, sanding. And there will be brass and copper in the mix. As well as the dreaded solder, and some iron and residue from sanding and filing. Can you give me any tips on how to recover the silver from all of that mess?

[@ChrisRalph]

See my comment about parting the gold-silver beads Jason is making. Your filings will dissolve in nitric acid, as long as there is not a lot of lead in your solder, the process will work.

[@kenpeters8257]

look for e waste refining on facebook and youtube and you will find what you are looking for, there are a lot of safety issues when working with acids

[@mbmmllc]

Hi Michael. If there is a lot of iron pull it with a magnet first. The biggest question is how much material are your working with and what are the ratios? For example if it is 75% silver and the rest is base metals that would be fairly easy. If it is 5% silver and the rest is base metals that would be harder. Would you be willing to send me a sample of the material and I could run some tests for you? I would not charge you anything and I would send back all the material when finished. You can send me an email at [e-mail] and we can discuss if interested. Thanks

[@nickyaero]

Good job

[@girirajsoni3510]

Actually ...big set up of hardware will eat up micro size gold ...its like firing a canon to kill a mosquito

[@charlesmalloy8150]

Will using a cupel remove say brass or copper from silver ?

[@djwilson2189]

In an avrage year how many times do you say the word cupel

[@christiecrawford6119]

My buttons keep having a greenish tint even the ones from the slags i done. does anyone have any ideas why or how? I think i may have a idea but not sure i am very new to this

[@johnhdavis2072]

Sure wish you could make a hobby size grinder for computer Chip's and connections under 750 price. Lots of us hobby people need something.?

[@charleslangshaw4860]

So what happens to the lead when it goes into the queue pal just gone forever or can you bring the lead back out

[@DDLMilkshake]

I bet you can grind up all the cupels too and reduce with carbon coke. Jason, what if you did that, would be interesting to see if the cupels steal gold too?

[@michaeldenison7339]

@@DDLMilkshake He recently did a video reclaiming the lead from the cupel.

[@MOHDNAEEMTAPPING]

Now a days i am doing almost same experiment

[@AshrafAli-ry2sx]

We waiting you to use shaking table with ball mill

[@gingerdude94]

Super interesting

[@NOBOX7]

Could you tell me what crucibles you use ? finding a good brand is not easy

[@mbmmllc]

The best ones for the price I have found are Salamander Super crucibles. Fine them at Legend Mine Supply. They last way longer than fire clay

[@hateonskillz318]

There bot as much oxide when using bismuth lead sure grabs and takes other metals out bismuth is still cool think lead is slightly better in the process your efficient cause I can save for a couple months metals things I've saved and fet higher numbers I know I'm new to these things and probably really inefficient I'm sure of that

[@razblack]

how do you separate the gold and silver?

[@mincarelleonostri4350]

Shaloms ! !

[@RalphReagan]

Does it include the cupolas?

[@NOBOX7]

So for the time and energy was it worth $55 in gold ? seems like you used $60 in cupel ? im not nocking you brother i just need the numbers to work and i am asking as a friend . i cant get cheap cupel maybe i should make my own

[@mbmmllc]

It wasn't so much about the amount of value recovered as the process. The cupels are less than $1 each. In the future I will just throw them in when I am doing ore and will recover more gold, but wanted to show people how much PMs was contained in the material

[@barryfields2964]

Well you did lose a lot with that cracked crucible!