One day I'll have the courage to process my own gold but until then I'll watch the pros and just sell the gold bearing goodies (except for the bits I stock pile) those ceramic CPUs are beautiful and I'm sure you've made many collectors cry!! Interesting seeing the eproms being processed! 👍
I collected for 3 years and just started to process mine. Whoooo its not easy. Shit goes sideways and before you know it, you are like where my gold.....fuk ....er? LOL One thing they do not stress enough is get your filtering process down, practiced, built, understood... before you do anything. That's where it first can start spiraling out of control. You literally forget if you keep the solution or whats on the cotton... Cross contamination starts happening as well if you are not careful. Ive been a mess for weeks now. LOL
I completely agree! Filtration is one of the most important steps in the refining process (if not the most important). If the solution is not crystal clear you’ll have a hard time precipitating pure metal
Well done! I have worked for many years as an electronics technician and have hoarded boxes of used circuit boards, some boards are from high end Hewlett Packard equipment complete with gold plated circuit tracks and edge connectors. I once had thoughts about processing it all for the gold but I am not going to bother, I hope to hand it all over to someone who can process it, I am sure there would be a nice amount of Gold for recovery.
My brother was salsenior in a big company. I whis i learn that i do today. I could take what ever i like, of scrap... But so if life my friend. I love this kind of goldrefining 🙏. Thank you
I think there are many steps missing in the video, such as where is the silver, cooper & the other minerals, how pure gold dissolved in nitric aced ... etc
Some quick maths here for whoever in interested: If average CPU weight is 60g then that would mean there would be approximately 233 CPUs. They would have to be sold at about £20 each to have the same value as the gold resulted from the melting.maybe less if I knew how much silver was melted. So conclusion is that depending how old they are it might not be worth putting them back on the market and melting is better option. I did not take in to account the time and materials of the melting process as I'm not familiar with the costs.
@@joergkalisch7749 Old processors have much more gold than modern ones, some models even have 0.5 gram. So his math isn't too far away i would say around 0.2 average, still selling working processors would earn you a lot more..
Cool video. I'm a little surprised you didn't redissolve the gold in aqua regia with a bit of sulfuric acid added to precipitate out any remaining lead. Still, it looked pretty good at the end and well worth the time depending on how much the scrap cost.
What do you mean the silver is a nice bonus at the end? Seeing how you added 300g silver... how much silver was recovered at the end to make it a nice bonus?
The silver from the picture is almost a kg. The nitrate from the dissolution step was mixed with other nitrate from previous refining. You get silver form the CPUs as well as gold. The added bonus is the refining of this silver which usually weights more than the gold recovered.
But how much do 14 kills of processors cost? Plus the cost of materials used to extract the gold. I'm not saying he didn't have a good profit, just that it would be nice for him to give that info.
I don't know why you all melt this gold powder with a burner from above, a blast of flame will certainly blow some of the powder out of the crucible, so there are more losses, it would be better to heat the crucible from the bottom.
First time coming across something like this, needed to do some math.... Assuming 40 grams per CPU average, 14 kg would be 350 CPUs. From 91 grams gold that works out to about .26 grams of gold per CPU. That jibes with what I have seen reported elsewhere, at least assuming a high yield on recovery. Also, I never realized that these old CPUs contained about $15 in gold each.
You got .65% or .0065 of 14,000 grams or 91 grams worth roughly $6500. But you had to pay for the chips and all your equipment and fuel and time. Ain't nothing free. good job.
@@mjlives5428 Lead for everyone in the neighborhood! need respirator and lead recovery hvac or he is literally polluting the world. probably the worst process if DIYing.
@@mjlives5428 As soon as I saw what was going on I thought "Ooof, the Lead fumes! I hope he is working in a very well ventilated area and has good PPE..."
Hey OwlTech, long time no see. I come to watch the video and listen to the music as well. I found out that you were the one who orchestrated the soundtrack, superb! 👍🤙💯🔥⭐
They cost a lot of money if you are trying to buy them as scrap from Ebay or something. Everyone knows how much gold they contain. A lot of times it's not worth it to buy the expensive processors, then do the procedure.
Have you ever seen the ads on alibaba for cpus I emailed a company and they quoted me $10,000 to ship a ton of them and when I say a ton I mean exactly that and it was $7000 and $3000 for shipping to where I'm at in nm. Now I'm aware that most are probably scams but the quote was actually for pretty good quality ones. What is your take on these do you think its a scam? Have you ever bought from any of these people overseas ? Because I'm real skeptical
could you explain the cupellation on the stainless steel part? and does that take the lead away or do you mix it with borax glass and niter salt to get a slag and the final dore?
Man...I watch Explosions&Fire, michaelcthulhu, and any number of backyard restoration channels, and yours has to be the most ghetto, backyard chemistry setup I've ever seen. It looks like a shed in a scrapyard somewhere, so well done for that. You really seem to know what you are doing, and you seem to be very successful in your extractions, even with that povvo setup. At least you're not using old jam jars as reaction vessels. Oh, btw, those beakers of yours - did you manage to find actual BSG beakers with handles, or are you just recycling novelty coffee mugs?
@@OwlTech333 well, I have neither the equipment, nor the knowledge to do it myself, so observation is all I have. I just wish you'd get one of those hotplate/magnetic stirrer combos. Breaks my heart to see you having to use a stir-rod.
Only allowed in certain unregulated parts of the world? Cupelling without a cupell must be called "sending the lead oxide downwind". But interesting for the simplicity.
Wow great video man! today I learned something thanks to you, one question though, where did you get these scraps from? after seeing your video I looked up for high yield ceramic CPUs and I saw a company selling it for 100 rupees per kg which is about 1 dollar per 1 kg do you think it is a scam?
I've seen plenty of gold recovery videos and when I saw this title I thought it was fake. My reasoning was "If he can do it in 4 hours, why does everybody take days to do it with complicated acid reactions?" Then I saw what this guy was actually doing in the video and immediately realized "Oh... THAT'S why?" This is both real and crazy.
there's gentlemen on TH-cam, Adrian's Digital Basement, who does vintage computer restoration and he is often short on some chips, I think it would be worth your while if you asked him for a list of components to look out for when people send you scrap, you can probably get much more than melt for those chips!
He has a ton of CPUs already and he doesn't do 32 bit computing anyway. Besides these chips are going to be poorly stored in hot warehouses, have bent/broken legs, etc.
How much did the recovery cost?? I mean if I somehow had access to huge amounts of e-waste, how much would it cost to recover the gold from 14Kg of CPU or other electronic items?
This is like asking me how much it will cost you to get to Paris or other cities in the northern hemisphere… for 14kg of this particular type of electronic waste (ceramic CPUs with kovar pins) using this method will set you back about $50 fuel and chemicals
@@OwlTech333 Thanks that's all I wanted. I understand different inputs will have different recovery costs. Oh and for me to get to Paris right now, about US$1500 😊
As I understand, there are gold threads left inside the ceramic plates!!! You have only taken the visible parts with gold which is a loss. Try to crush the ceramic plates into fine powder and look for the gold that remains in the form of thin wire.
There's no gold bonding wires inside the ceramics! From GRF "A standard ceramic CPU is made of several layers of ceramics bonded together. between the layers (while the ceramics is still unfired, also called green) is screen printed conductors of molybdenum. The ceramic body is then fired and the molybdenum that is exposed is then gold plated. On the bottom or side, pins are brazed or soldered and in the cavity bond wires are used to connect landing pads on the die with the exposed gold plated conductors. For bonding wires aluminum or gold can be used. Inside the ceramic body is the molybdenum conductors and the only gold is the exposed gold and the gold under the die. To use gold inside the ceramic body would be problematic. Thermal expansion and contraction will break conductors over time unless it expands with the same rate as the ceramic body. Molybdenum is the solution on this problem and it is cheaper that gold. Göran"
Yes 90 grams of gold . You can make 50.000 by selling pentium 1 cpu to retro collectors. They become rare due recycling maniacs. The price of a single cpu new was over 200 .
@@OwlTech333 Depends on the model really, most of the ones sold for gold scrap are basically worth as much as... gold scrap. If you want i can help you point you to the ones that could be REALLY worth reselling but my guess is that the chances of finding such ones are pretty low in my opinion.
Would you be willing to make a video on all the materials you screen out of the lead baths and try to do a recovery video from the bits of metals left on them? I’m sure there’s a small percentage of pms left behind that alloyed with the silver/lead and clung to the materials. Thank you!!
@@OwlTech333 know this was 3 months ago and had just found this channel,Good content by the way on what your working on,but this link yo I have shared here I had checked it out and the person has no videos there posted or uploaded anymore there,there may or been some vids,but now theres no content there I can watch,🤔
The method used in this video for gold recovery from CPUs seems less efficient than it could be. I believe chemical extraction methods would yield far better results and greater precision. Using the right chemical processes could potentially maximize gold recovery and improve overall efficiency.
@@active_horizons here is the thing I tried both methods and compered results, there is a reason why this is the preferred method when it comes to this kind of material. If the chemical extraction method yielded far better results you won’t see me using this method.
We added 300g scrap silver contact points at 80% purity (which is around 240g Ag) and recovered 430g dore with contained 90g Au the remaining 90-95% of the dore being silver
Dissolving the alloy in nitric acid is not a process identical to inquartation. They are two completely different processes, with completely different purposes, ending in completely different results.
@@OwlTech333 Inquartation is a process where you ADD base metal to an alloy. Which then goes without saying, the result of inquartation is an alloy with a larger percentage of base metal. Nothing has been dissolved yet at the completion of inquartation.
Honest question.... Why didn't you crush the chips ? Inside of those sandwiched ceramic plates are tiny gold wires from each pin to the chip. I doubt the gold escaped from between the ceramic plates without breaking them open.
There's no gold bonding wires inside the ceramics! From GRF: "A standard ceramic CPU is made of several layers of ceramics bonded together. between the layers (while the ceramics is still unfired, also called green) is screen printed conductors of molybdenum. The ceramic body is then fired and the molybdenum that is exposed is then gold plated. On the bottom or side, pins are brazed or soldered and in the cavity bond wires are used to connect landing pads on the die with the exposed gold plated conductors. For bonding wires aluminum or gold can be used. Inside the ceramic body is the molybdenum conductors and the only gold is the exposed gold and the gold under the die. To use gold inside the ceramic body would be problematic. Thermal expansion and contraction will break conductors over time unless it expands with the same rate as the ceramic body. Molybdenum is the solution on this problem and it is cheaper that gold. Göran"
@OwlTech333 thank you for the info.... Though I'll still crush mine since your copied article clearly says "for bonding wires, aluminum or GOLD can be used". It's a small quick step and if it liberates more gold, I'll go through the extra step.
Just imagine showing this to a computer geek in 1995. He would be horrified.
No, in those times in our area 10g of 24k gold was of ₹4,600 which is hardly 150 dollars
Why?
I am a nerd and I am horrified in 2023 as well. :) Some of those CPUs worth probably more than the gold from them.
@@_RandomGamer ask your parents how long it took them to earn 4600 rupees back in the day
I'm horrified now
This video has some early 2000s era TH-cam vibe. I dig it
it's like a cooking video where there is the old recipe and old ingredients lol
Meanwhile background music “kau kau kau”
Great video, but the music is really obnoxious
Those are really old CPUs, modern ones have very little Gold.
One day I'll have the courage to process my own gold but until then I'll watch the pros and just sell the gold bearing goodies (except for the bits I stock pile) those ceramic CPUs are beautiful and I'm sure you've made many collectors cry!! Interesting seeing the eproms being processed! 👍
I collected for 3 years and just started to process mine. Whoooo its not easy. Shit goes sideways and before you know it, you are like where my gold.....fuk ....er? LOL One thing they do not stress enough is get your filtering process down, practiced, built, understood... before you do anything. That's where it first can start spiraling out of control. You literally forget if you keep the solution or whats on the cotton... Cross contamination starts happening as well if you are not careful. Ive been a mess for weeks now. LOL
@@Chewy_GarageBandDad i expect the author to reply to this
I completely agree! Filtration is one of the most important steps in the refining process (if not the most important). If the solution is not crystal clear you’ll have a hard time precipitating pure metal
@@OwlTech333 Hi , I am a big fan , can you please tell me where did you buy the 14kg of CPUs and what did it cost ?
@@martinslavov1449 they’re not mine, I only process them
Well done! I have worked for many years as an electronics technician and have hoarded boxes of used circuit boards, some boards are from high end Hewlett Packard equipment complete with gold plated circuit tracks and edge connectors. I once had thoughts about processing it all for the gold but I am not going to bother, I hope to hand it all over to someone who can process it, I am sure there would be a nice amount of Gold for recovery.
Very cool!
How much do you have
Do you know what tghe gold price is right now?
Hello. Arne from 🇳🇴Norway here. Exelent woork. Wow.. So muth gold. Thank you for this clip😊
Hi Arne! Thanks for watching!
My brother was salsenior in a big company. I whis i learn that i do today. I could take what ever i like, of scrap... But so if life my friend. I love this kind of goldrefining 🙏. Thank you
I think there are many steps missing in the video, such as where is the silver, cooper & the other minerals, how pure gold dissolved in nitric aced ... etc
th-cam.com/video/7SD8Nr_CUdc/w-d-xo.html
Some quick maths here for whoever in interested:
If average CPU weight is 60g then that would mean there would be approximately 233 CPUs.
They would have to be sold at about £20 each to have the same value as the gold resulted from the melting.maybe less if I knew how much silver was melted.
So conclusion is that depending how old they are it might not be worth putting them back on the market and melting is better option.
I did not take in to account the time and materials of the melting process as I'm not familiar with the costs.
.4 g of gold per CPU? I seriously doubt that
@@joergkalisch7749 what do u think? How much gold in 1 cpu?
@@twistr99 a few milligram
@@joergkalisch7749 thanks
@@joergkalisch7749 Old processors have much more gold than modern ones, some models even have 0.5 gram. So his math isn't too far away i would say around 0.2 average, still selling working processors would earn you a lot more..
Cool video. I'm a little surprised you didn't redissolve the gold in aqua regia with a bit of sulfuric acid added to precipitate out any remaining lead. Still, it looked pretty good at the end and well worth the time depending on how much the scrap cost.
The client insisted on recovery only despite the refining would have been another extra hour
That’s what I was thinking with aqua Regia could of saved time with super acid but ended up with one hour plus on lead bath
Is the scrap the most expensive part or is the fuel and chemicals?
lol gotta keep that lead in more $$$
@@mrkiky You get the scrap for free if you are smart ,and acid is not very expensive ,and the rest is all about organisation and methodology .
12:12 looks like a planet got hit by a big asteroid amazing💯🔥🔥
well spotted
As a chip designer, watching this is like watching Mona Lisa burn down for its frame.
The mona Lisa is rubbish though xxx😅
@roberthowkins3097 lol
Pipipipeeepipieeepiee lol.
Hahahaha
What chip did you design bro😂😂😂😂😂😂
You should have a rounded strainer, would make recovering the stripped ceramics a lot less time consuming and its a lot easier
Agree
Awesome video buddy. I admit, I do feel bad for all those Retro CPUs that could be playing DOS games, lol.
You and me both!
What do you mean the silver is a nice bonus at the end? Seeing how you added 300g silver... how much silver was recovered at the end to make it a nice bonus?
The silver from the picture is almost a kg. The nitrate from the dissolution step was mixed with other nitrate from previous refining. You get silver form the CPUs as well as gold. The added bonus is the refining of this silver which usually weights more than the gold recovered.
@@OwlTech333 considering the cost of silver , it's no more than 60$ worth if even that.
I enjoyed this video. How do you handle the lead fumes?
Respirators
Holding the breath, as far as i know, that's how they do it in Ghana
Wow excellent video as always thank you 😊 🙏 love how you break everything down
Glad you enjoyed it
You are very smart, a lot of Chemistry knowledge 👍🏻👍🏻👍🏻
Szacun. Waga marki Zelmer 🙂
Dokładnie
Great video - what was that soundtrack? It was fab.
m.soundcloud.com/owl-tech/gowl
Can you tell me how much $$ the 14kg of scrap is worth?
Great video 👍
$3,000 roughly
@@OwlTech333 How is this possible? One gram of gold costs approx. $54. 90g x $54 = $4860
@@OwlTech333 so you basically made 2500 euro profit on 4 hs work?
My profit was 27 grams
@OwlTech333 does this account for material cost?
Amazing work! : ) Thank's for sharing!
@@TheWatchRepairersPerspective thanks for watching!
In Febr 2023 in my country, selling 90 gram of gold 24 karat (999) is about 4700 USD. /4500 EUR. Good job.
But how much do 14 kills of processors cost? Plus the cost of materials used to extract the gold.
I'm not saying he didn't have a good profit, just that it would be nice for him to give that info.
I don't know why you all melt this gold powder with a burner from above, a blast of flame will certainly blow some of the powder out of the crucible, so there are more losses, it would be better to heat the crucible from the bottom.
First time coming across something like this, needed to do some math.... Assuming 40 grams per CPU average, 14 kg would be 350 CPUs. From 91 grams gold that works out to about .26 grams of gold per CPU. That jibes with what I have seen reported elsewhere, at least assuming a high yield on recovery. Also, I never realized that these old CPUs contained about $15 in gold each.
Don't forget that gold in 1999 (that seems to be about the vintage of these chips) was going for $450/oz.
@@kevinrusch3627 Oh yeah, I know that. I was just shocked when I did the math and learned how much the gold in each chip is worth today.
These weren't all CPU's. you can clearly see other Ceramic Ic's in the first batch he throws in. (Ceramic DIP Packages)
Correct, ceramic ICs were about 1,5kg
You got .65% or .0065 of 14,000 grams or 91 grams worth roughly $6500. But you had to pay for the chips and all your equipment and fuel and time. Ain't nothing free. good job.
The only free cheese is in the mouse trap
Ahoj.... This looks efficient and scary... "Lead bath" is not exactly a wellness spa procedure... 😀
😂😂
Do not breathe those fumes 😂😂
Impressive video sir 👏👏 May i ask you where did you find this large amount of CPUs and how much did it cost you ?
It didn’t cost me a dime
@@OwlTech333 like do you go to a local e-waste recycling center to gather the needed amount or what ?
@@MohamedNabil-xz5ob it's complicated
@@OwlTech333 complicated like what like do you steal it or what 😂😂😂
@MohamedNabil-xz5ob more complicated than that
A dangerous recovery process, yet rewarding at the end!
Dangerous how??I;m new
@@mjlives5428 Lead for everyone in the neighborhood! need respirator and lead recovery hvac or he is literally polluting the world. probably the worst process if DIYing.
@@mjlives5428 As soon as I saw what was going on I thought "Ooof, the Lead fumes! I hope he is working in a very well ventilated area and has good PPE..."
Is there no chance you’re scooping away some of the gold with that big cup thing? Does the gold sink or something?
It’s a perforated ladle so the molten lead gold alloy runs through the holes
@@OwlTech333 oh I see. 👍
wow great amount of scrap sir nice result very nice process..
Thanks 👍
That's almost a $3000 payout for 14k gold, since it's about 50-ish% pure.
Not bad for a few hours of work.
99.45% is the purity
Wtf
It was 99% pure $7k today
@@RealLifeFinance $7700 now!
@@rubenverster250it was a LOT of vintage CPUs and IC chips. 😂
As always your on point. Very well done m8
Thanks!
That's no where near 3-9's. Too much lead and silver. You need to melt it into shot and put it in aqua-regia using sulfuric acid next time.
Ok
Muito bom! Conseguiu recuperar as 300g de prata? Ou teve algum perda de prata no processo de recuperação do ouro?
se recupero todo incluida la plata
Hey OwlTech, long time no see. I come to watch the video and listen to the music as well. I found out that you were the one who orchestrated the soundtrack, superb! 👍🤙💯🔥⭐
Welcome back!
Nice!!!! That is an awesome yield.. what type of cpu's were they?
All sorts of high yielding ceramics
They cost a lot of money if you are trying to buy them as scrap from Ebay or something. Everyone knows how much gold they contain. A lot of times it's not worth it to buy the expensive processors, then do the procedure.
mainly pentium pro / pro 2's, pentium1 / 2's sx and dx 2 / 4's....
Have you ever seen the ads on alibaba for cpus I emailed a company and they quoted me $10,000 to ship a ton of them and when I say a ton I mean exactly that and it was $7000 and $3000 for shipping to where I'm at in nm. Now I'm aware that most are probably scams but the quote was actually for pretty good quality ones. What is your take on these do you think its a scam? Have you ever bought from any of these people overseas ? Because I'm real skeptical
scam
This was a great video and project
Thank you!
could you explain the cupellation on the stainless steel part? and does that take the lead away or do you mix it with borax glass and niter salt to get a slag and the final dore?
He skims off the lead oxide as it forms. The base metal oxides slag with it. Same idea as when cupelling with a MgO cupel... just not as neat.
Man...I watch Explosions&Fire, michaelcthulhu, and any number of backyard restoration channels, and yours has to be the most ghetto, backyard chemistry setup I've ever seen. It looks like a shed in a scrapyard somewhere, so well done for that. You really seem to know what you are doing, and you seem to be very successful in your extractions, even with that povvo setup. At least you're not using old jam jars as reaction vessels.
Oh, btw, those beakers of yours - did you manage to find actual BSG beakers with handles, or are you just recycling novelty coffee mugs?
What do you mean by BSG beaker?
Looks like you’ve mastered the art of observation ;)
@@OwlTech333 borosilicate glass.
@@OwlTech333 well, I have neither the equipment, nor the knowledge to do it myself, so observation is all I have. I just wish you'd get one of those hotplate/magnetic stirrer combos. Breaks my heart to see you having to use a stir-rod.
I do have one but it won’t be that ghetto :)
Thank you i seen the process ! I well began !!!
приветствую . как всегда на высоте. отличный результат;)
Спасибо!
Only allowed in certain unregulated parts of the world? Cupelling without a cupell must be called "sending the lead oxide downwind". But interesting for the simplicity.
Hello, I'm a big fan of your writing, I do processes too, but in Brazil it's difficult. I previously bought 80 kilos i486 but it never arrived.
Be careful out there too many scammers
@@OwlTech333 Thank you I learned in practice now I'm looking for a company I sell material more calmly if you have a company...to say thank you...
Wow great video man! today I learned something thanks to you, one question though, where did you get these scraps from? after seeing your video I looked up for high yield ceramic CPUs and I saw a company selling it for 100 rupees per kg which is about 1 dollar per 1 kg do you think it is a scam?
must be a scam.
I know it's a scam
nice work guys!
Thanks!
What type of crucible you used for the process mr owl ?
Mild steel from cut LNG cylinder
@@OwlTech333 arigato 🙏
Die Ausbeute ist gut.👍
I've seen plenty of gold recovery videos and when I saw this title I thought it was fake. My reasoning was "If he can do it in 4 hours, why does everybody take days to do it with complicated acid reactions?" Then I saw what this guy was actually doing in the video and immediately realized "Oh... THAT'S why?" This is both real and crazy.
There’s method to the madness :)
Brother please tell me you are in a very well ventilated area dealing with all that molten lead.
We are
there's gentlemen on TH-cam, Adrian's Digital Basement, who does vintage computer restoration and he is often short on some chips, I think it would be worth your while if you asked him for a list of components to look out for when people send you scrap, you can probably get much more than melt for those chips!
He has a ton of CPUs already and he doesn't do 32 bit computing anyway. Besides these chips are going to be poorly stored in hot warehouses, have bent/broken legs, etc.
Perfection as always owl. Good shit Buddy.
Thanks!
looks healthy!
great video as always
Céad Míle Fáilte
Hey, nice video extraction :)
What is the value for all that gold & silver in USD sir?
Thanks before hand.
BR AN.
Probably $5k-$6k
@@chrism4008 Thank you for answer Chrism, a very impressive sum of USD, out of all those chips! :)
BR AN.
Yes about 6k
Hi! Is the lead bath metal reusable or do you have to buy new lead metal and silver all the time?
Both silver and lead are reusable
Do you think its worth soing this? The tine labour machinery cost lesves you at a profit?
Yes
91 grams gold, almost 3 Oz troy, more than 8k $, mmm the answer is YES
What is your recovery rate? I.e. have you processed the slag and byproducts to see how much gold and silver is lost during the processes?
0.5%
How much did the recovery cost?? I mean if I somehow had access to huge amounts of e-waste,
how much would it cost to recover the gold from 14Kg of CPU or other electronic items?
This is like asking me how much it will cost you to get to Paris or other cities in the northern hemisphere… for 14kg of this particular type of electronic waste (ceramic CPUs with kovar pins) using this method will set you back about $50 fuel and chemicals
@@OwlTech333 Thanks that's all I wanted. I understand different inputs will have different recovery costs. Oh and for me to get to Paris right now, about US$1500 😊
Would it be better to break the processors before adding them them to the molten lead?
No need to, thermal shock does it for you
Did I just watch vintage CPU murder 😨
You just watched the price of some vintage CPUs going UP
What about the lead oxide? Do you recover it or is it just blasted into the atmosphere?
Lead oxide is reduced back to lead metal by smelting with flour and wood charcoal and reused
As I understand, there are gold threads left inside the ceramic plates!!! You have only taken the visible parts with gold which is a loss. Try to crush the ceramic plates into fine powder and look for the gold that remains in the form of thin wire.
There's no gold bonding wires inside the ceramics! From GRF "A standard ceramic CPU is made of several layers of ceramics bonded together. between the layers (while the ceramics is still unfired, also called green) is screen printed conductors of molybdenum. The ceramic body is then fired and the molybdenum that is exposed is then gold plated. On the bottom or side, pins are brazed or soldered and in the cavity bond wires are used to connect landing pads on the die with the exposed gold plated conductors. For bonding wires aluminum or gold can be used.
Inside the ceramic body is the molybdenum conductors and the only gold is the exposed gold and the gold under the die.
To use gold inside the ceramic body would be problematic. Thermal expansion and contraction will break conductors over time unless it expands with the same rate as the ceramic body. Molybdenum is the solution on this problem and it is cheaper that gold.
Göran"
Where do they get these many CPUs?
Hello @OwlTech ,how much on average would all of those cpus cost
2-3k
@@OwlTech333 thanks alot for answering my question does
Wow awesome! So 90 grams of gold is like over $5,000 right? 😮
Pretty much!
Yes 90 grams of gold . You can make 50.000 by selling pentium 1 cpu to retro collectors. They become rare due recycling maniacs. The price of a single cpu new was over 200 .
@@iulianispas8634 how many would you like to buy at $50?
@@OwlTech333 Prohaps you can sell with 50 each if you frame them
@@OwlTech333 Depends on the model really, most of the ones sold for gold scrap are basically worth as much as... gold scrap. If you want i can help you point you to the ones that could be REALLY worth reselling but my guess is that the chances of finding such ones are pretty low in my opinion.
Professional chemist here: please don't sit over a plate of molten lead. Pretty please.
@@maciejzbogdanca2904 noted
Interesting ! where go the lead in cupelling with stainless steel ?
It turns into lead oxide (slag) which is then skimmed off. It is saved for lead recovery
Skimmed as lead oxide, about 10 or so % PbO vaporize in the process. If the cupel or cupelling tray is used, PbO is soaked into the cupel.
Would you be willing to make a video on all the materials you screen out of the lead baths and try to do a recovery video from the bits of metals left on them? I’m sure there’s a small percentage of pms left behind that alloyed with the silver/lead and clung to the materials. Thank you!!
You mean all materials as in type or the the whole quantity I’ve processed so far?
Great Video! Could you do this process with circuit boards?
Yes, I haven't done it myself but there is a video of guys who are doing it in big reverberatory furnace I can search for the link if you wish
@@OwlTech333 If you can send a link to the video that would be great. Thank you
@@michaelsmith5677 th-cam.com/video/Ttv-qLxTs90/w-d-xo.html
@@OwlTech333 Thank you
@@OwlTech333 know this was 3 months ago and had just found this channel,Good content by the way on what your working on,but this link yo I have shared here I had checked it out and the person has no videos there posted or uploaded anymore there,there may or been some vids,but now theres no content there I can watch,🤔
How much material did you spend? Tell it clearly
I did, go through the comments section it’s mentioned
Was it really worth it though
Yes
We need to buy silver separately or scrap have its own 300gm of silver?
I add additional silver
Sir. Are you using white lead? Black lead? Please reply sir
l lead metal
I surmise the lead oxyde is recycled (as it's highly poisonous) and not tossed away.
@@marinoceccotti9155 yes, it’s reduced back to lead metal
where do you get the cpus originally?
Scrapyard
What is the cost to run a batch like this? Will you recover market price for the gold or is it a break even type deal.
To run it? Less than $50
Why instead of pouring it into the crucible with water, don't you use a filter like a coffee filter to get rid of the water excess easily?
Sometimes I use coffee filters too
Hey just a curious question. What carrort gold was this at the end??
@@mtbmtb6163 24x0.9949=23.8776K
Do you use Borax when you melt the gold?
Yes a tiny amount
And you can save the processed CPUs and ball mill them to get more from the traces inside the ceramic. This will be 90%Au 10%Pd as well.
Nope
Love that you have sneakers on. :D Hahaha. For sure don t try that at home.
Socks with sandals are my footwear of choice
Ho - I am looking for a downloadable version of this song. It makes me Go Go Go GO
soundcloud.com/owl-tech/gowl?
looking forward to this one
Я просто охреневаю от количества потерь золота при таком способе! Сколько его осталось после обжига на керамике, это ужас?
Сколько золото осталось? Вы как думаете?
@@OwlTech333 Думаю, не меньше грамма. Надо всё кислотой обработать
@@Болгарин-т5р грам так точно
The method used in this video for gold recovery from CPUs seems less efficient than it could be. I believe chemical extraction methods would yield far better results and greater precision. Using the right chemical processes could potentially maximize gold recovery and improve overall efficiency.
@@active_horizons here is the thing I tried both methods and compered results, there is a reason why this is the preferred method when it comes to this kind of material. If the chemical extraction method yielded far better results you won’t see me using this method.
Was there a lot of high yield materials or is that the general average?
Average
@OwlTech333 awesome! I've been building up a collection. Nowhere near 14kg but seems like approximately 3-3.5g per pound.
Do you recall about how much silver you got from this recovery?
About the same as the gold
We added 300g scrap silver contact points at 80% purity (which is around 240g Ag) and recovered 430g dore with contained 90g Au the remaining 90-95% of the dore being silver
where are you getting these CPUs from?
Bulk ewaste
You got 6,300 dollars out of 91 grams of gold. What's the total cost for the gas and chemicals used in the process?
50 dollars
Wish I could learn this...
Alchemy always said we could create gold out of just about anything..
@@OwlTech333 How much for the scrap parts?
So it is better to not crush your chips? Or is it better to crush chips? Can you please elaborate.
Don’t crush the chips if this is the method you’re going to use
That was badass!
first how much is one kilogram of cpu second is the 91 gram of gold is 24k?
i hope you reply soon
$100-$200
Good work 👍😊👍
Thanks ✌️
Chinese resellers are electro plating gold "back on to cpus" and chips - bit it's thinner
Dissolving the alloy in nitric acid is not a process identical to inquartation. They are two completely different processes, with completely different purposes, ending in completely different results.
How is the result different?
@@OwlTech333 Inquartation is a process where you ADD base metal to an alloy. Which then goes without saying, the result of inquartation is an alloy with a larger percentage of base metal. Nothing has been dissolved yet at the completion of inquartation.
Not base metal... usually copper or silver.
He added silver to inquart the gold... @@echosmyth5021
Honest question....
Why didn't you crush the chips ?
Inside of those sandwiched ceramic plates are tiny gold wires from each pin to the chip. I doubt the gold escaped from between the ceramic plates without breaking them open.
There's no gold bonding wires inside the ceramics! From GRF: "A standard ceramic CPU is made of several layers of ceramics bonded together. between the layers (while the ceramics is still unfired, also called green) is screen printed conductors of molybdenum. The ceramic body is then fired and the molybdenum that is exposed is then gold plated. On the bottom or side, pins are brazed or soldered and in the cavity bond wires are used to connect landing pads on the die with the exposed gold plated conductors. For bonding wires aluminum or gold can be used.
Inside the ceramic body is the molybdenum conductors and the only gold is the exposed gold and the gold under the die.
To use gold inside the ceramic body would be problematic. Thermal expansion and contraction will break conductors over time unless it expands with the same rate as the ceramic body. Molybdenum is the solution on this problem and it is cheaper that gold.
Göran"
@OwlTech333 thank you for the info....
Though I'll still crush mine since your copied article clearly says "for bonding wires, aluminum or GOLD can be used".
It's a small quick step and if it liberates more gold, I'll go through the extra step.
@@John-ir2zf those are exposed at the moment the cpu hits the molten lead
could you do without the silver?
I prefer to do it with
Why do you choose this method instead of the common acid bath method?
@@kris4107 speed, low cost, effectiveness