Lead Recovery From E-Waste part 1: Viewer Request Special
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- Опубліковано 27 чер 2024
- In this "Viewer Request Special" video I tackle the often asked question of how to recover the lead from E-Waste. After my success at recovering tin, I thought I'd tackle lead next. Let's see if I can figure out a way to do it. Please visit the Urban Gold Mining section of my web site at mdpub.com/UrbanGoldMining/ for more information.
My other channels: @electrogeek6437 Electronics & Retro-Computers
@MikesLapidaryFossils Rockhounding and Fossil Hunting.
Chemicals used in these videos:
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oh man, haha, story of pruducing the light of the sun made my day.
If lead shoots up in value I will visit my fishing spot. There are plenty of sinkers and bobbers hanging from the shade tree. I like the shade and the tree puts up a pretty good battle.
Even though I'm not likely to recover lead, I still find these videos and your research fascinating and interesting to watch and learn from. Good on you Mike. 👍
Lead, tin, and antimony make a great bullet alloy. I get my tin-antimony from scrap pewter.
Excellent. I appreciate your work. For sulphurous soils where the sulfur must be removed and the gold extracted, I add potassium nitrate or chlorate to the sulphurous soil and also a little charcoal. I burn all the disturbing elements of the gold soil and extract the oxide soil easily and without any trouble. Good luck
Hi Mike, GREAT video! Always enjoy some good pyro!! Always learn something new from these "viewer request specials"! Will never get this stuff from high school chemistry! :) Be safe! Thumbs up - as always!! Jim
Your description of overdoing that first try made me laugh. Especially thinking about anyone close who was probably wondering what that made scientist was up to again today 😂
Another excellent video, you're now already presented the video of how to recovery gold, silver, palladium, tin and lead from E-waste, do you plan to make a video for how to recovery all the precious metals from E-waste at once? I think it will be an awesome video.
Ive been working with lead acid batteries and want to convert battery sediment back to metal . Mixture of sulfur compounds and oxides .
According to the almighty god google, when lead oxide is heated with carbon, the carbon removes the oxygen from the lead oxide, leaving the lead metal behind. Hope this helps.
That's how it works when using litharge when smelting,
1976, "Rocks" album, Aerosmith...lol.
Punny me, Mike.
lol
I think you might have been making lead dioxide in that reaction.. 🤔
The flux probably just prevented some of the aluminum from oxidizing and anything molten just got trapped in the melted glass slag. 😬
If you do the thermitic reaction slow enough to avoid ejecting material or contain it in a crucible, you may be able to test that fluffy dark ash that you got without it getting contaminated or amalgamated. 🤷♂️
You probably ended up burning the lead sulphate into lead oxide with your thermite reaction. The way it looks is a typical metal fire (zinc burns very much the same way) and the "fluffy slag" is also typical for that type of reaction creating oxides. So, in that case, your sulfur primarily bound to the aluminium, and the oxygen bound to the lead and aluminium -- which would be very energetic. That would explain your H2S smell as well afterwards with the moisture from the air. Overall reaction, I think: 3 PbSO4 + 6 Al -> Al2S3 + 3 PbO2 + 2 Al2O3.
Magnesium is super dangerous. I use to work ilwith it in a smelting plant that made car parts. Had a clean up guy spray water on a hot biscuit that came out of the mold, 😂 well i don't think he ever done that again. That shit went up super fast and was so bright it lit up the 30,000 square foot building we were in. We all had to evacuate the building due to the smoke it let off... super nasty stuff.
Hi Mike, Great Video. I'm still not understanding. Circuit boards are covered with tin/lead solder even today. Even I use 60-40 solder at home. So if you had say 10 kgs of stripped/depopulated boards, put those boards through a heating process to melt the solder into a glob. I know that some boards will have high melt solder and some may have low melt solder. But, all in all, you still have tin/lead solder. There should be some chemical/cementation way to separate the two without torching up the neighborhood.
Next video.
Pretty much all electronics use lead-free solder these days (he's right saying there are environmental laws against use of lead solder). It causes issues by being more brittle (hence damage to PCBs being a lot more common now). Lead-containing solder is rare, at least in just about all end-user equipment. Only equipment that needs specific high tolerances to temperature and stress will use lead-containing solder for the pliability of the resulting metal.
Then why if you google "what is solder made of" you will find a 60/40 tin lead combination? So if lead was removed from solder what is left just tin?
@@Alex-kp3hr You can still buy 60/40 lead solder for personal use. It isn't used commercially in much any more. Modern solders are mostly tin with a few percent of other metals to improve their properties. Silver, copper, and selenium are common additives.
You could react the freshly precipitated lead sulfate with sodium carbonate to make the even less soluble lead carbonate. From there you could dissolve in nitric or even acetic acid and reclaim the lead through electrolysis.
Nice try, BUT lead is way to high in the line of reactive metals (over copper iirc), so the reaction with aluminium is way to energetic.
There is a way better suited to get metallic lead from lead sulfate: it is the process use in a lead acid Batterie! I recommend to try this next.
Plus you can use the lead oxide from the one electrode to regain sulfuric acid from your last waste treatment step. How? You make lead acetate from the lead oxide and give it to the mixed sodium acids in the waste liquid, so the lead acetate reacts and drop out of solution as lead sulfate. Filter it, put the lead sulfate into the electrolyses cell and get lead and sulfuric acid back. Closing a circle.
Oddly car batteries already use lead sulphate and of course lead, simple electrolysis should get lead back on one of the electrodes as if the battery is being charged, might even get sulfuric acid back too
hey there. I have been messing with lead compounds for a long time. I tell you the simplest way to turn lead sulfate into lead metal, is you react it with a solution of 30-40% naoh or sodium carbonate, making lead carbonate or hydroxide, and sodium sulfate. the carbonate can be easily be smelted into metal. I can provide more info, just reply.
Next video I do it similar to that.
What about a plumbers solder, like 60/40 lead tin? Probably a better source, I have a bucket slowly accumulating of soldered copper pipe elbows, Ts and faucet ends, which every good scrapper should trim off for the #1 copper prices
What about mixed types? Containg Lead, bismuth, antimony, silver and a few other things? I think the bismuth sulfate drops out too
perhaps there be lead in batteries, more easy to separate, also, it might get you some Additional-Hard-Earned-Subs (because of 'Environment') ...
isn't it lead sulfate that causes cells in lead acid batteries to short out? If so, I've seen people use Epsom salt to wash the batteries and recover them from their internal short.... so I wonder if there is a simple electrolysis reaction you can do rather than vaporizing the lead into the air? My first test would have involved a test-tube and allot of heat to see if I could melt it back into lead and burn off the sulfur...
If that is sand below the material you ignited, and you did get in the 3000s of deg F I would have expected to see some molten sand. Did you get any? If not then you are not reaching those temps or the burn material/ash is acting as an insulator perhaps
I'm assuming you're not going to recommend doing this violent reaction on a large scale like 100 kilos!! 😂😂 Bom Baby
P.S. Like it did on the 1st burn
FUN??? Maybe if that person has no life, Im into chemistry for the love and joy of it,and I know not anyone! Not even Cody's lab, and he goes after the most useless elements at times! 😂😂😂
Where do you get the aluminum or did you make that?
What kind of Al2O3 do you use? Im having a problem with this Al203 120 grit someone gave me 5lbs for xmas, and I kept getting no ignition so i washed the Al2O3 with acetone then vacuum filtered it now ive got it drying in my vacuum chamber, hope that does it, cause its definitely not my Fe2O3 as I bought the finest i could afford! Any info would be appreciated
I'm not using Al2O3. I'm using fine aluminum flake. Al2O3 is a product of the reaction.
OI want to know how to get the lead out.
So, a question I asked in a forum years ago, and got completely shot down. Maybe you might have some insights. What about getting lead from CRT glass? Seems like you'd get quite a bit more if it were possible to do.
@user-kj4wr1qy5d. My biggest yield so far was 1,960 kg of pure lead from 8 tons of CRT glass and almost 1½ ton of crystal vases/wine glasses. Some years ago I got 8 to 10 CRTs every week. Now I don't get even 8 in a whole year, but I still have around 150 CRT glass funnels in stock, waiting to be processed. The biggest CRT glass I've ever handled was 1.5 m wide and weighed 400 kg.
CRT glass funnels are made of three different types of leaded glass; all must be processed separately. On the inside of the front panel glass you'll find valuable Rare Earth Elements in the form of a fine powder layer. It must be removed very cautiously with distilled water due to its toxicity. CRT glass funnels also yield a nice quantity of nickel, worth twice as much as copper.
@zero-waste I don't suppose you have a vid of the process?
@@Belgarion1971. I don't have time to make videos. I can make much more by scrapping/recycling.
What are you doing within recycling? How advanced are your activities?
Anything specific you wanna know about CRT scrapping and recycling?
@zero-waste Right now, my activities are limited to tearing stuff apart and selling to my yard. I'm just about ready to start experimenting with metal casting. I'm still in the learning phase of processing ewaste. Basically I wanted to know if extracting lead from CRT glass is even doable for a diy'er, because I was told absolutely not by that forum group. I'm playing with the idea of casting fishing jigs.
@@Belgarion1971. Great. I'm an avid sportfisherman too. I actually use a large part of my recovered lead for sinkers and especially for jig heads.
Extracting lead from CRT glass is surely doable for a DIY'er. Even though I'm a full time scrapper/recycler, I'm still just working from home, but I'm making US $ 250,000 a year in my garden shed.
Lead recovery from CRT glass is somewhat similar to lead recovery from lead acid car batteries. Melting such batteries won't result in more than a little metallic lead. Most of the lead is bound molecularly to other elements, i.e. either sulfur or to the glass. You need a deeper insight in the chemistry to gain a profit. However, all the lead can be extracted.
If you want some advice, feel free to ask; but please be aware I don't have time to write long tutorials.
Out of curiosity: What forum group did you discuss this matter with?
get the aluminium out of purple gold jewelry
That HDX brand HCL is the worst, IMO, to work with. That stuff makes a smell of a spoiled fart. I gag off the slightest whiff. It’s about $2 cheaper and it is HCL, but not for me.