Non-Chemical Electronic gold recovery

[goldsilverpro]

Like Harold said, it sounds like you're talking about brush plating. The gold plating solution is in a gel form probably to confine it and prevent it from running all over.

In the old days, we put a wad of glass wool on the end of about a 6" carbon rod. It was held on with a rubber band. The positive lead from the rectifier was hooked to the other end of the carbon rod. The negative lead was hooked to the object being plated. The glass wool was dipped (and re-dipped frequently) in whatever type plating solution was desired and brushed on the clean object being plated. In industry, special brush plating solutions (usually with a high metal concentration) are often used but, in practice, many regular plating solutions will work at the right voltage - usually from 2 to 4V, depending on the solution. You need enough glass wool to prevent the rod from shorting out on the part being plated.

 

[SStafoscolton2]

I am trying to separated gold from others metals. I have the gold dust from my process. But when I went to smelt it. The gold was magnetic. Any one know why?

 

[butcher]

Gold is non magnetic, other metals like iron are magnetic.
So you either do not have gold dust from your process or your gold is mixed with other the metals which you were trying to separate.

I do not know what metals you were trying to separate, or any details of what your process consists of or the details in it, or what you could be working with like pyrite ore or electronic scrap or a golden yellow banana.

All I know is gold will not stick to a magnet.

 

[nickvc]

As Butcher has said we need a lot more information to be able to even guess what has occurred.
What you were processing.
How you processed it and with what and what chemicals were used.
Basically an A-Z of what you had and what exactly you have done, answers will follow very quickly if we know that..

 

[VictorB1]

Hi all
I need some advice,
I have access to a constant supply of computer cpu's, memory, pcb etc etc and gold plated/filled jewellery.
Is there any easy way to recover the gold that does not involve acids?
There are 3 main companies in the uk that pay for electronic waste but the price they quote is low considering what gold is available, for example:-
Pentium Pro CPU - they pay £110 per Kg
They contain 1 gram of gold each, 11 processors to 1kg, what purity of gold would it be?
Any help would be appreciated

I will teach you an extremely easy method 8f you will help me with your supplier. Furthermore, expect to recover .5 gram from large pentiums

 

[FrugalRefiner]

Chiptech hasn't been here since 2017. If you click on a member's name, you can see when they last visited.

Dave

 

[Barstool miner]

Hi all
I need some advice,
I have access to a constant supply of computer cpu's, memory, pcb etc etc and gold plated/filled jewellery.
Is there any easy way to recover the gold that does not involve acids?
There are 3 main companies in the uk that pay for electronic waste but the price they quote is low considering what gold is available, for example:-
Pentium Pro CPU - they pay £110 per Kg
They contain 1 gram of gold each, 11 processors to 1kg, what purity of gold would it be?
Any help would be appreciated

Hello, have you looked into other precious metals on E-waste? My understanding in Europe all soldering is done with Lead free solder. That mean they use Tin/Silver solder on all PC boards manufactured in Europe. That is a Gold mine in it's self. 96% Tin and 4% Silver. I have used Chlorox and Ozone at 60 Deg C
to leach Gold, but then all other metals become Chlorides as well. There is also a method Fusing metals with Salt to make them water soluable. Have Fun!
I have been in love with Chemistry since I was 10 years old.

 

[Yggdrasil]

Hello, have you looked into other precious metals on E-waste? My understanding in Europe all soldering is done with Lead free solder. That mean they use Tin/Silver solder on all PC boards manufactured in Europe. That is a Gold mine in it's self. 96% Tin and 4% Silver. I have used Chlorox and Ozone at 60 Deg C
to leach Gold, but then all other metals become Chlorides as well. There is also a method Fusing metals with Salt to make them water soluable. Have Fun!
I have been in love with Chemistry since I was 10 years old.

Did you read Frugalrefiners post just before yours?
https://goldrefiningforum.com/threads/electronic-gold-recovery.12922/post-314827

 

[Martijn]

Removed outdated reply. Nevermind

 

[Yggdrasil]

Hello, have you looked into other precious metals on E-waste? My understanding in Europe all soldering is done with Lead free solder. That mean they use Tin/Silver solder on all PC boards manufactured in Europe. That is a Gold mine in it's self. 96% Tin and 4% Silver. I have used Chlorox and Ozone at 60 Deg C
to leach Gold, but then all other metals become Chlorides as well. There is also a method Fusing metals with Salt to make them water soluable. Have Fun!
I have been in love with Chemistry since I was 10 years old.

This is an international standard and as such is the same in both places.
The Lead has been replaced by different elements with all of them to be assumed less toxic than Lead.
Silver is one of them.
I haven't done any math on this but I suspect that it won't be profitable unless you have literally tons of solder.

 

[anachronism]

This is an international standard and as such is the same in both places.
The Lead has been replaced by different elements with all of them to be assumed less toxic than Lead.
Silver is one of them.
I haven't done any math on this but I suspect that it won't be profitable unless you have literally tons of solder.

The use of silver in the solder is extremely rare.

 

[Yggdrasil]

The use of silver in the solder is extremely rare.

This was a reply to Barstool miner and his claim that Solder was a Goldmine in itself, which I questioned.

 

[anachronism]

This was a reply to Barstool miner and his claim that Solder was a Goldmine in itself, which I questioned.

I know mate I was agreeing with you.

 

[Barstool miner]

This is an international standard and as such is the same in both places.
The Lead has been replaced by different elements with all of them to be assumed less toxic than Lead.
Silver is one of them.
I haven't done any math on this but I suspect that it won't be profitable unless you have literally tons of solder.

It would be interesting when someone out there, would get varifiable assays on the modern Solder that is out there. I know for a fact that the solder used on
Copper water pipe is lead free solder ( alloy of Tin and Silver ) Tin metal Price on the world market has been up to $20000.00 per metric ton. So it is a veritable Gold mine IF the weight of solder on a PC board is 6%

 

[Barstool miner]

Hello, have you looked into other precious metals on E-waste? My understanding in Europe all soldering is done with Lead free solder. That mean they use Tin/Silver solder on all PC boards manufactured in Europe. That is a Gold mine in it's self. 96% Tin and 4% Silver. I have used Chlorox and Ozone at 60 Deg C
to leach Gold, but then all other metals become Chlorides as well. There is also a method Fusing metals with Salt to make them water soluable. Have Fun!
I have been in love with Chemistry since I was 10 years old.

I am Now 78 years old and still enjoying my Hobby

 

[Barstool miner]

This was a reply to Barstool miner and his claim that Solder was a Goldmine in itself, which I questioned.

I used, "Gold mine". as a figure of speech. There are Many more Valuable metals That are discarded when "refiners " only concenstate on Gold from E-waste

 

[Barstool miner]

The use of silver in the solder is extremely rare.

I can Visit any Hardware store in the USA and purchase Lead free Solder , that is an alloy of Tin and Silver

 

[4metals]

Tin metal Price on the world market has been up to $20000.00 per metric ton. So it is a veritable Gold mine IF the weight of solder on a PC board is 6%

Don't think for a minute that the large refiners who smelt the tons of circuitry to recover the copper and precious metals don't further process the slag residues containing the other precious metals. Sure the metals that are priced in terms of dollars per ounce get first priority, but make no mistake about it the dollars per pound metals are not ignored. Especially when they don't pay out on those metals.

 

[anachronism]

I can Visit any Hardware store in the USA and purchase Lead free Solder , that is an alloy of Tin and Silver

You're absolutely correct. I could have worded my post a lot better.

 

[Darkthirty]

Machine shop owner told me he did some work for a guy that was stripping tons of tin plated electrical contacts. Was looking at bins full of copper, the owner told him the money was in the tin. I'd like to recover Sn also, but this forum doesn't seem to be the place to ask those questions.