Awesome work! These are my favourite and most professional videos I’ve ever came accross. As for learning, guidance or even great entertainment, a pure bless! THANK YOU so much!!!

Man I’ve learned so much watching your videos you are really good at explaining everything down to the small details , much appreciated !

Nice button! I LOVE seeing the ewaste refining videos!! Thank you Sreetips!!!!

Ive been hoping all is well with you brother. I think you have a great channel and hope to see more of what you do during your day. Thanks for sharing.

Awesome video - I enjoy all of your recovery and refining videos!

@sreetips

6 жыл бұрын

Thank you Brian.

I remember when we used to lust after those CPU's, now everyone just wants to dissolve them :) That P6 architecture lives on though, it's the distant ancestor of many modern CPU designs.

Sreetips, thank you for your videos, they are deliciously addictive. Keep the good content coming.

Damn, I got excited when I saw this video in my feed. Great videos man, I love this stuff!

@sreetips

6 жыл бұрын

Greg, glad you enjoyed it.

@jasonmcfall5578

4 жыл бұрын

@@sreetips I took notes during this one. Another great vid man.

This was awesome! Thank you for your videos! :)

The best video that I have yet seen showing controkked use of Copperas. Keep up the good work.

@sreetips

6 жыл бұрын

I try to include the little extra details. Things that I would have wanted to know when I first started learning about refining. Back then (almost 8 years now) there was very little.

Best PMR videos. Your videos are the best ones on YT

@sreetips

5 жыл бұрын

Thank you Susan.

This is the nicest golden button I've ever seen :)

Awesome videos and explanations as always. I have learned a lot from watching all of your videos I only knew how to fire assay things before I watched your videos.

Not bad for ewaste! I'm hoarding all my CPU's for gold recovery later! Pentium Pros I'll probably sell to collectors, if I can get more than the gold content. Same with my I486's which I have more of those and they're not nearly as collectable!! Thanks again Sreetips!!! Have a GREAT Day!!!!

Another great video,thank you

Good work bafelous!👍

I always leached the base metals with nitric, never occurred to me to just use hcl to do it. Will definitely save on nitric costs. Thanks kadriver!

@forsakengold

4 жыл бұрын

Hydrochloric takes forever. I've accidentally disolved gold using HCl and hydrogen peroxide with heat. Don't have to worry about that with nitric

Cool video, thank you.👍👍👍

This Canal deserve many more to folow😊✍️. Thanks

"From another refiner" [sic] some samples of PP's sent to get tested and found something very interesting. As you might be aware there's a couple major variants to a PPro, Mostly the ceramic version and the later plastic version. The plastic version was the latest and most expensive which had a 1mb cache as apposed to 512kb in the ceramic. So instead of a processor die & a cache die, the plastic version has 3 dies, 1 processor & 2 cache dies. Effectively increasing the gold content by 33%, but the actual dies are bigger as well. Our results are approx .7g Au per cpu but could be a little more. Do you think this is where the 1g per cpu myth came from? were early assaying results using the plastic version and it the got confused with all PP's and add to that backyarder refiners not recovering the potential led to the down ramping of PP's in general?

Great video, as always :) It is a bit painful to see to see technological wonders like those processors being reduced to rubble to be processed to a bit of precious metal, I'll admit. On the other hand, it makes sense to reprocess them, since the availability of precious metals and other compounds is limited and should not end up in the environment. I was always curious about that... what do you do with the leftover garbage of the refining process? How do you dispose of it safely? How do you neutralize the toxicity of what is left over? Do you have close at hand base-solutions to neutralize acids? How do you handle run-away chemical reactions for example? Those could be interesting things to explain in your videos. Thanks for sharing and showing :)

@jasonmcfall5578

4 жыл бұрын

I'm curious as well. I have two gallons of that stuff and don't really know what to do with it.

@spiderdude2099

3 жыл бұрын

He has the luxury of only really dealing with metal salt solutions which can actually be processed rather efficiently into harmless iron metal/iron oxides/iron salts. He does this by having several waste stockpots. To start he takes solutions with excess nitric acid and adds sterling silver and other silver sources in order to consume the remaining nitric acid. Then in the first pot he puts solutions containing silver and copper salts and adds copper metal which removes the silver from solution and cements it out. He removes the silver and places the remaining solution into a second pot and adds iron. This cements out the copper and leaves iron salts. He can then remove the copper and then take the iron salts and either dispose of them at a designated disposal plant or convert the iron salts into iron oxide which can be sold or just disposed of since it it pretty much inert.

@apoocumber4164

Жыл бұрын

@@jasonmcfall5578I have 1 tonne and I can’t decide if spend the resources to get the gold or just sell as is.

A copperas precipitation is always an impressive sight! 🤯👍

Another exelent video ..... thank you

Hello, First off, I would like to say: Great videos!! I think I watched all of them at least 3 or 4 times. You make the process look so easy. I just installed my fume hood and supplies to try this for the first time. I ordered some computer chips for this initial project but it appears that these chips have been removed very sloppily. It appears there is still some solder left on them. As a new refiner, will this solder burn off in the incineration process, or is there an extra step to remove this solder? Like you, I would like 3-9s fine product when I am done. I know you are busy, but any suggestions will be appreciated. Thanks.

@sreetips

5 жыл бұрын

In the refiners handbook, she says to soak in hot hydrochloric acid until the solder softens then scrap it off with a knife before trying to refine it. Escrap is kind of tricky, very little gold.

Thanks !. Enjoyed

RIP Pentium Pro's 2:15 you ware so valuable im gonna cry now :D

Pls start selling to Canada :) also I enjoy every vid u post so please keep them coming. You are the king st refining in my personal opinion

why you use diluted nitric acid to dissolve base metals

10 CPU = 3 gr of gold,100 CPU =30 gr Au maybe I change work. The explanation is the best on YT.

Very beautiful gold bead

second question : with the gold in solution can you take a measured sample to weigh it then weigh the same amount of acid to get a general idea of how much gold by weight is in solution.

Could you burn off the grease and oil before breaking the chips???? That would make it much faster to torch them.

Wish I could hang out with you and learn. Pretty interesting I can figure out the Chemistry but there are small questions I would need answered.

Excellent video

Emotionally attached to those CPUz??? Yep, I'm one of them but the quest for gold is always BRUTAL! LOOOL :)

Sreetips, what does the hydrogen peroxide do for the reaction. I know you said it would help loosen up the gold foils from the base metals. Are you able to elaborate?

@sreetips

6 жыл бұрын

Scott, this is a reply from aga, who is a chemist. He says; "When the peroxide was first added it looked exactly like it oxidised FeCl2 to FeCl3, judging by the instant yellow/brown colour change. That might sound like a waste of H2O2, but FeCl3 happily complexes/reacts with copper & aluminium too." Scott, according to this statement, the hydrogen peroxide forms a compound that attacks and dissolves the base metals under the gold, but does not attack and dissolve the gold. The FeCl3 dissolves the copper under the foils and releases them, intact, into the solution. Pretty cool stuff. I added the peroxide on a hunch, it wasn't in the plan, but it sure worked nicely to release those foils and put the base metals into solution so I could get rid of them before I attempted to put the gold in solution.

@scotthack2632

6 жыл бұрын

sreetips thanks to both you and AGA. I have been wondering this for sometime. It also answered the question “niggling” around the edges of my mind since I knew HCl did not dissolve copper. Yet, HCl and peroxide is frequently used with e-scrap. Finally makes sense.

@spiderdude2099

3 жыл бұрын

#1scotthack yeah, in much the same way that nitric acid has to be added to hydrochloric acid in order to oxidize gold and form aqua regia, the peroxide reacts with the HCL and oxidizes the base metals, even copper without touching the gold. Makes the process go much faster. The peroxide and HCL will do this without iron present but FeCl3 also acts as a complexing agent and catalyst which further helps the reaction.

Very Nice Man

This is the first time I watch this. I noticed sometimes you use the little funnels the conical shaped funnel to filter out your experiments. Those drive me crazy because there’s no suction on it! It takes forever! Either way I enjoyed the video thanks

Great sir what would happen if u use SMB for this reaction .pls let me know

@sreetips

6 жыл бұрын

SMB would have worked nicely. I could have added several spoons of SMB and the gold would have come down just as fast as the copperas.

question as the level drops below the 1500ml mark. are you loosing water vapor or are you loosing the acid. is you solution gaining strength or is it getting weaker before adding additional acid?

sir, the price materials, and gold price is rentabile? and trash you do with the substances trash. good video, good job

I enjoyed this one as well...

@sreetips

6 жыл бұрын

Excellent Dru, thank you

Sree I love ur channel

And thank you for you videos and information is very useful

Would grinding up those CPU's in a blender help in any way to speed up the process of separating the gold foils from base metals?

@sreetips

5 жыл бұрын

I've never tried it. But experience tells me that grinding the ceramic too fine would load up the filters and slow things way down. Plus, I don't think it's necessary. They are broken apart to get at the tiny gold wire inside the sealed CPU.

@rkb6783

3 жыл бұрын

Plus it will increase the haul !

Sir.after I have had computer scraps sitting in vinigar and seasalt for almost a month..how do I refine this solution

When you test to see if there still gold in solution or if it's all out what do you use

@sreetips

4 жыл бұрын

Stannous chloride testing solution.

What is your sodium chlorate? sodium hypochlorite NaOCl or sodium chlorate NaClO3

I think I read Sodium Clorate has been with drawn from sale in the US. Is that right? So whatever do you use now?

How do you refine stock pot

When dissolving the base metals in the first step, why is the solution blue? I’m assuming copper ions?

@sreetips

5 жыл бұрын

Probably copper

excellent video Tim from AUSTRALIA victoria Melbourne

@sreetips

6 жыл бұрын

Thanks tim (edited once for spelling)

I called one of my co-workers a mad scientist but now I know better!! I will be saving every old Xeon and Pentium chips for him. Man, this is flipping interesting.

2:12 *Ah man!* You remembered my freak out from last year, heh, yeah I actualy did look away hehe.

@sreetips

6 жыл бұрын

Was that you? I know there have been several other comments expressing discomfort when I break the CPUs.

@yourmoms5602

5 жыл бұрын

Blasphemy!

Your programs are great I watch with great interest. Can you please give me an idea of the approximate weight of the ten CPUs you are using before processing.

@sreetips

5 жыл бұрын

I did not weigh the CPUs before I processed them. You should be able to look it up on the Internet.

When you smash up the cpu's, does size of the pieces matter at all? If you were to put them it a mortar and pestle and smash it down pretty fine (say like sand size granules) and then put in an oven for LIGHT incineration would that help the the rest of the process along just because of increased surface area of the material? Also do you happen to remember what these CPUs weighed in total before you did anything with them? Looking to start stocking up, the listings I see are all by lbs and don't say exactly how many CPUs you get, just by weight. Trying to calculate rough totals based off the 0.3 grams per cpu you stated near the end of the video. Although I'm sure not all are created equal so I'd get a guesstimate at best. Thanks in advanced if you reply!

@sreetips

2 жыл бұрын

The way I understand is there are tiny gold wires inside the sealed area. Grinding them to sand probably won’t help.

Very good 👍

genius ... hello I wanted to know if I can replace sodium chlorate with sodium chlorite and in what percentage does it have to be to be able to dissolve gold? ... I also saw that it can be done with bleach, so in what percentage does it have What is the bleach? Greetings from Argentina.

What happens to the fumes exhausted from your fume hood. I have not yet found a video which answers this question. My concern is that fumes released to external air is dangerous to surrounding area, if not so for the refiner. Can the fumes be neutralised, or rendered less harmful?

@sreetips

5 жыл бұрын

My fume hood exhausts out the top of my roof. I don't use a scrubber because I don't make enough fumes to create a problem. A scrubber can be added. I think that they are filled with caustic soda. It neutralizes the fumes.

Unless you physically put nitric acid into the mix how else could gold get into the solution?

@sreetips

6 жыл бұрын

Sodium chlorate mixed with hydrochloric acid forms chlorine gas. Chlorine gas will dissolve just about any metal, even platinum.

No wonder those Pentium Pros were so expensive!

I'm just learning about this so forgive my ignorance. Would it not make more sense to put those chips in a AR solution and then decant when the expected gold is dissolved based on time and temp in solution? Based on what I have learned this entire process should only take an hour at most.

@sreetips

5 жыл бұрын

Putting the chips in AR sounds like it would be faster and it may be. But it causes other problems that makes the process difficult. I have a video on CPUs in aqua regia. It's not that easy.

@kkendall99

5 жыл бұрын

@@sreetips I would be very interested in seeing that video, I started putting power interconnect pins in AR because I got tired of waiting for all the base metal to dissolve (some of the pins were quite large), Once the pins turn black I filter out the solution and that turned out to be a big time and money saver.

Bravo Zulu

I am given to understand vintage Soviet ICs and CPUs have unusually high yields. Also, I've wondered, when dropping gold with SMB, have you ever tried putting the SMB into solution and pouring the gold solution into it? I believe it makes the gold precipitate faster, and as a sponge rather than a powder. Underestimate how much SMB you'll need when making the solution - you can always add more.

Thanks you friends

Iv'e been using the word precipitate to everyone since watching your videos! haha 😂 😂

Hello sreetips: Have you ever considered using one of those crazy blend tech blenders to turn those chips to almost dust.

@sreetips

3 ай бұрын

No, it’s not necessary.

your videos are so relaxing.

does alumini recover a copper in solution?

I enjoyed this older video. I am curious, after extracting the base metals with AP solution, why did you opt to not do Aqua Regia?

@sreetips

3 ай бұрын

Recovery with A/P, then refining the recovered metals with aqua regia, is the way I learned it. Going straight to AR puts everything in solution and makes a very dirty solution.

So what did you add prior to the copperas what was that tablet

@sreetips

6 жыл бұрын

The tablet was actually a megnetic stir bar

Thanks sir

love your work, would it be worth ingotting all your waste copper, for sale ? also make a steel for sword forging stronger than usual

@sreetips

3 жыл бұрын

Sadly, the copper is highly contaminated with other metals and it gets tossed

@mainwarings3

3 жыл бұрын

I was thinking out of the box , thanks for the swift reply

this guy says he works in a jewellery repair shop ; what a load of waste. . . that is like taking someone with the skills of an army ranger or navy seal or the FFL or SaS and making them a school crossing guard. Such a waste of talent ;( Thank you for the wonderful videos and you make this stuff interesting. I hope some government teachers are watching and taking notes...

Do you ever do any large scale refining?

@sreetips

6 жыл бұрын

I normally refine karat gold. Computer scrap is very popular right now, but I rarely refine it because the yields are so low and the amount of waste is high. But I enjoyed making this video.

Archimedes channel use Sulfuric acid to dissolve the the ceramic casing and expose more gold, in wire form .

Awesome. Can you do a video on the process of refining mlcc’s.

@sreetips

6 жыл бұрын

Dave, if I could get my hands on some then I'd do it.

@dmw.2108

6 жыл бұрын

sreetips How much do you need to make the video

@dmw.2108

6 жыл бұрын

sreetips how much would you need to do it ?

@sreetips

6 жыл бұрын

I don't know. I've got zero experience with MLCCs. But the larger the yield the more folks like to see it. How about 500 grams? You got that much to sell?

One thing I've seen is people using HCL to remove the pins before grinding the main body of the CPU. Makes the pins easier to process.

@sreetips

2 жыл бұрын

I don’t have much experience with escrap.

Would it be simpler to burn the oils and grease off the chips before you break them up?

@sreetips

3 жыл бұрын

Possibly

How many grams per liter are necessary to dissolve 8oz./L gold using this method with sodium chlorate? i attempted to saturate a solution at 150F with sodium chlorate 800ML HCL and the chlorate reacted with a small explosion and flame inside my reactor. Is it necessary to introduce at cold temperatures? Safe to raise temperature once the chlorate has been fully dissolved? Thank you for your advice

@sreetips

Жыл бұрын

I’ve never tried to dissolve that much gold with HCl and sodium chlorate.

why are you putting the air hose in the liquid waste container?

@sreetips

5 жыл бұрын

To keep the solution moving

I've looked on Ebay for your store and can't find it .... please help, I live in Australia and have tried the worldwide setting but to no avail.

@sreetips

2 жыл бұрын

Steve, unfortunately I only ship to USA locations. I did ship a gram of gold to a fellow in Australia. But the shipping charge was $70 USD. Sorry for the inconvenience.

What if you powder the cpu then do the refining process, would you get more yield

@sreetips

5 жыл бұрын

Drake, I don't know because I've never tried powdering the CPUs. I've done this experiment several times using different processes each time. I got 0.3 grams of pure gold from each CPU - every time.

i once believed the websites that said pentium pro got 1g gold per cpu but now i conclude it's another myth ..., what if you incinerate the chips, would there be more yield?

@sreetips

6 жыл бұрын

There may well be a gram of gold on each CPU, but it's karat gold, not pure gold. If you could somehow get all the gold from a single CPU into a single button, then it probably would weigh close to a gram. But it would only be about 30% pure gold (based on my results). The remaining 70% of the weight would be base metals.

In the last video I watched you had 4 of them and got 1.0g. So .3 per would be 1.2 no? Some left over in the waste maybe?

@sreetips

9 ай бұрын

I’ve done these several times. It was usually 0.3g

@MyScreenNameIsTroubledOne

9 ай бұрын

@@sreetips oh gotcha. I’ll have to watch the other ones. I’ve only seen the two videos.

So in your opinion Ferrous sulfate is better then sodium meta bi sulfate as it seems faster ?

@sreetips

2 жыл бұрын

SMB is quick and easy, just add it and watch the gold precipitate. But SMB will precipitate platinum group metals if present. Ferrous sulfate takes a while to dissolve then filter before adding it to the gold. But ferrous sulfate precipitates only the gold and nothing but the gold.

I would buy that gold Button!

what if you crushed the CPU's smaller? any faster?

@sreetips

5 жыл бұрын

Maybe, but I've never tried it.

Every time I melt gold powder, I get gold flakes stuck to the sides of the melt dish. Is this typical? How can I avoid it? I glazed the dish with borax and add borax while melting.

@sreetips

4 жыл бұрын

When I get gold sticking to the sides of the melt dish I crank up the flame on my oxy/acetylene torch. Get everything real hot, sprinkle borax on the inside upper walls (where the gold adheres) and use the force of the flame to drive the gold off the wall and down into a central mass at the bottom of the melt dish.

@crackrokmccaib

4 жыл бұрын

@@sreetips Cool tip. A sreetiptip. I just use mapp only. Kinda makes crappy buttons because everything doesn't quite liquefy that well. Maybe if I add some insulation around the outside of the dish it will help things stay hot and they will slide down doing what you said.

Question: I tried the poor mans nitric (sodium nitrate) to dissolve my gold from recovered flakes. It worked and dissolved all the gold to solution. Thing is the stannous chloride did not indicate gold in solution. and SMB did not render gold from it. Where could the gold have gone if not in dissolved solution as it clearly got dissolved. (used Hydrochloric plus dissolved sodium nitrate) ?

@sreetips

2 жыл бұрын

Sounds baffling. I’m just as puzzled as you

@sreetips

2 жыл бұрын

I’ve never used poor-man’s. I have used HCl and bleach with good results. But it makes lots of deadly chlorine gas. Must do it in a fume hood.

@hernandovasquez1801

Жыл бұрын

Thank you for all the information in your videos. Inthis video you didn't use a test for iron and magnetism; I'm doing my second project with Cpus, when I came to disolving the gold the solution came negative for gold. I suspect that iron cemented the gold. I Saw the gold before before putting HCL + bleach; is it good to try stump-out even the solution is negative?. I really appreciate your answer.

So I work at an e recycling company. We easily get 100+ junk processors per month. I imagine if we shredded them we could fit a lot more than 10 into a 4 L beaker at once. But is there a ration of volume HCl to mass of shredded processors?

@sreetips

Жыл бұрын

My experience with escrap is very limited. The yields are low and the amount of waste is high. For these reasons I don’t process much escrap.

please give us the link of your ebay store...! i cant fint it .... thanks

@sreetips

6 жыл бұрын

eBay user name is bafelous, but the gold bead has already sold.

You might to try to speed up the process of removing the gold foils by using an ultrasonic cleaner.

what about platinum and silver that may be in the cpu's

@jasonmcfall5578

4 жыл бұрын

.002g platinum. Silver almost doesn't exist. And costs way too much to get out. It's cheaper to go buy it. Unless you have a huge operation to deal with 20000 Ton of e-waste per day.

In the future, all gold containing chips need to be powderized..

I have a couple Wii controllers and a Samsung tablet 10.1 that I just took apart. I'm having a hard time getting Nitric acid. I have to depopulate the boards. They are covered in gold. How would I be able to process them? Can you try it and make a video, please? I'm just learning.

@sreetips

6 жыл бұрын

if it were me, I would try the hydrochloric acid and hydrogen peroxide with a bubbler at room temp. That should get the foils loose. But I don't think it can get under the solder mask on this boards. I don't have any boards to work with so I can't make a video. But it's a good suggestion.

@JesusisLord-7A

6 жыл бұрын

sreetips I was told Lye dissolved in water will take off the mask in a Lye bath and hot sand to depopulate the boards. Thank you for the help and the classes.

@sreetips

6 жыл бұрын

Now you've got me chewing on the idea. Probably won't be a very high yield, but it could make a killer video. I need a way to shred those boards, then hit it with HCl and extract the gold. Thank you for getting my juices flowing on this one.

@JesusisLord-7A

6 жыл бұрын

Thank you for putting out these videos. Maybe one day we could get together somehow. The "Gold fingers" from memory card are the same way. Everyone cuts off the "fingers" but the whole card is covered in gold. You just can't see it because of the mask.

@kaiseredge

6 жыл бұрын

the gold plate on most boards is usually very thin if it has it, if you are going to process gold plated boards for a video sreetips I'd try old cell phone boards first as they always contain gold plate and are easy to obtain. I have a stock pile of cell phone boards 100 pounds atleast so far, I will process some day - depopulation is the annoying part.

So u paid 185 for 3 grams of gold . And lost 50 + the cost of chemicals and time.

@jasonmcfall5578

4 жыл бұрын

Such is the ways of e-waste. It's mostly dome for the fun and hobby end of it. I do this myself at home just not to this scale he does due to lack of the raw scrap. It is a lot of fun to fee your little BB's at the end of it all. You can't put a price on that.

sreetips, your videos are great! But just one suggestion, get a mic. That potato isn't working too good. ;)

@sreetips

6 жыл бұрын

Yes! I'd love to have a mic. First I've got to make some bank so I can afford a new camera. I borrowed the one I'm using right now.

My friends relative just passed and he let me have 7 5gallon buckets of intel chips and about 7 boxes of scrap computer parts to go through.

This video makes me sad. Those CPUs are my childhood.

@sreetips

6 жыл бұрын

So sorry, didn't intend to make folks feel bad when I had to break them. I should get one and save it. They'll probably become collectors items one day.