GOLD RECOVERY from EBAY ewaste (part 2) I.C. Chips

[@electronicscrapper4956]

I dont know why you werent recommened thru You Tube earlier. I live my life outside of work and family refining. Im happy to share my recovery rates with you. I dont know where you are located but I do know of one company listing on Ebay that I buy from regularly. You are right about the fiberglass bit holding onto a portion of the gold. Ive backed this up with a microscope. I use a 2000 micron mesh when dealing with the Bgas to fully seperate the fiberglass vs the rest

[@3-2preciousmetalrecycling]

I'm located in the UK. I've thought about buying a few high micron screens and testing to see at what size does the gold no longer fit through and if I can remove more material without compromising the gold yield

[@electronicscrapper4956]

@3-2preciousmetalrecycling I've tried as high as a 1500 micron mesh... I lost gold within the fiberglass. The 2000 works best for me. Rather than loosing 50 percent for using higher mesh vs lower. I loose 10% that I build up to refine in larger batches.

[@3-2preciousmetalrecycling]

Thanks for the information. 👍

[@scouseurbanminer5106]

I’m with you Electronnicscrapper, why didn’t the algorithm recommend sooner? Subscribed also, thanks for the video 3-2.

[@scouseurbanminer5106]

Also quick tip, get rid of the plastic bag and magnet, too much faffing, build a small electromagnet, all you need is a pc power supply, a magnetic steel/iron nail, a switch, and a decent length of thin enamelled copper wire and some electrical tape. Loads of videos on YT about making these. You can use a battery but they got hot after a while, hope it helps and keep them vids coming.

[@СергейКордубан-е6с]

you need to burn the chips a second time to white ash, otherwise there will be losses. if you leave black ash, it will absorb gold. P.S. hello from Ukraine.

[@3-2preciousmetalrecycling]

Hi. Thank you for your advice. I will try this next time. 👍

[@Hill-13]

@@3-2preciousmetalrecycling He beat me to it , just arrived home from work.

[@joek511]

I use a electric rotisserie for BBQs'. It has a cage that shuts. I lined the cage with fine steel mesh like window screen. It holds a kilo + of ICs'. I built a fire brick box to put the cage in. It has a hole in the side for the burner. I set all that in a steel pan. Turn on the rotisserie and light the burner. As they burn they tumble , and the ash falls into the tray. Most of the legs and the silicon stays in the basket. Leaving very clean ash with the gold wires. You get the idea.

[@3-2preciousmetalrecycling]

That's an absolutely brilliant idea, I really like that. I had thought of something similar but a bit bigger for de-populating boards. Boards heat up solder melts, and components fall out onto a tray. I keep thinking of building it, never get round to it. I'd never even thought of an automatic chip crusher. Thanks for watching 👍👍

[@electronicscrapper4956]

I forgot to add in my earlier comment.... you have a new subscriber

[@tsaga2]

Thank you very much! for sharing your video 🙂

[@3-2preciousmetalrecycling]

Thanks for watching 👍

[@uwillnevahno6837]

8:01 will you use H2SO4 to drop any Pb out of solution before you precipitate the Au?

[@3-2preciousmetalrecycling]

I don't for gold recovery. I like to recover the gold first, and then once I have a decent amount, I'll refine it to get it pure. When I do the refine, I use sulfamic acid to remove any lead as I can not buy sulfuric acid in my country

[@electronicscrapper4956]

@@3-2preciousmetalrecycling if this was about the bgas... there will be no lead present... nor silver

[@3-2preciousmetalrecycling]

I do it when I refine all my gold after recovering just as a precaution it is possible to pick up small bits of lead, tin, copper and silver from the boards the bgas come off or the containers I store them in while I build up a batch or just from not separating the material properly. I also use ammonia to wash my gold when refining as a precaution just in case there is any silver chloride present. It cleans the gold up beautifully

[@orange-dd5rw]

what was the total weight of boards from which you get these depopulated chips

[@3-2preciousmetalrecycling]

Unfortunately, I didn't weigh the material before I started. Thanks for watching though👍

[@theonewhowas7709]

lolol these a.i. voices are just too funny

[@3-2preciousmetalrecycling]

The a.i. voice sounds a lot better than my own lol. I use the ai to voice over because I have a strong local accent that a lot of people might struggle to understand. Thanks for watching though👍

[@scouseurbanminer5106]

That’s why I don’t speak too, most Americans would be asking for translation haha where you from 3-2, I’m in Liverpool

[@3-2preciousmetalrecycling]

I'm just down the road in Birmingham

[@msaric1206]

Why you dont use urea or sulfamic acid to neutralize solution before drop?

[@3-2preciousmetalrecycling]

I don't overuse nitric acid. I use enough pottassium nitrate, or sometimes nitric acid, to get the job done. Once a reaction has finished, I add a little more. If I don't get any reaction, it means all the gold is dissolved. Therefore, there is no need to use urea. Some people use urea to remove excess nitric, but because I don't have an excess, there is no need to. Thanks for watching 👍

[@md.javedkhan3595]

Nice video sir

[@3-2preciousmetalrecycling]

Thanks for watching 👍

[@Hill-13]

If you put the chips in AP it will dissolve the legs , then crush and burn , burn again , it works well in my opinion to make. if your up for a friendly challenge I have a video in response , it’s from CPU scrap and pins ( >1.5 g)

[@3-2preciousmetalrecycling]

That sounds good. Just took a quick look at your channel and subscribed. I like the look of that copper cell. I had thought of doing something like this for non-ferrous pins. I'll be watching a few more of your videos in the morning 👍👍

[@Hill-13]

@@3-2preciousmetalrecycling sure Would appreciate any tips to improve processes