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Gorfman, I'm interested in refining them myself. Therefore, I need a big quantity of everything. I friend promised me to show me how to refine, what chemicals to use and what precaution to take.
 
plamenppp said:
Gorfman, I'm interested in refining them myself. Therefore, I need a big quantity of everything. I friend promised me to show me how to refine, what chemicals to use and what precaution to take.

If you read the post on 3 leg transistors, under "where to find scrap", there is some very good advice on parts like these.

Good luck, Gorfman.
 
plamenppp said:
Thank you, telcu. This is a good website. I will remember it. My first hand experience is still sleeping in Varna and I know from him about the square ones :) I wonder what else can I find in the scrap buying companies around :) They usually buy Al, Fe, Cu, Zn, Ni, brass and stuff like these. I'm pretty sure they buy computers for scrap.

I have two types of long potentiometers - the first ones are made of plastic and the second ones are made of Al. On the picture the firs one is from an Al one and the others are from plastic one. There is a big difference in the color. What are second ones made of?

All three are silver plated on copper base metal.

teclu
 
What is this? There were no numbers or letters on it. I think it is a potentiometer, am I right? Does it contain some Pd?
 
plamenppp said:
What is this? There were no numbers or letters on it. I think it is a potentiometer, am I right? Does it contain some Pd?

Yes, is an potentiometer.... put it in nitric 50/50, if it dissolve and the color is yellow to reddish brown, then Pd is present in this alloy.

teclu
 
teclu said:
plamenppp said:
What is this? There were no numbers or letters on it. I think it is a potentiometer, am I right? Does it contain some Pd?

Yes, is an potentiometer.... put it in nitric 50/50, if it dissolve and the color is yellow to reddish brown, then Pd is present in this alloy.

teclu

I agree with the idea of testing. It is the fastest and most rewarding way to learn about the recovery of PM's from e-scrap.

Everyone here enjoys your enthusiasm, and wants you to be successful in your new venture :p .

Many fine refiners and scrappers have put a lot of time on this Forum, and have compiled tons of data and experience regarding all the questions you have been asking. It's all here for the taking. Please avail yourself to the other resources, especially the search funtion, and tutorials. The other main resource, is the book available on many downloadable links, Refining Precious Metals,by C.M.Hoke. This is an outstanding book that even a novice can learn from. The best advice i could give is read, read, and read some more.

The whole forum is available to use and peruse. There is no free lunch, you need to put in some effort, to gain this boundless knowledge.

Good luck, Gorfman
 
I am posting some pictures now as I promised. I didn't even fill the whole trunk today :( But I did something more interesting. I went in a computer service. The guy there was collecting cpus. I had six green fiber cpus (which I did'nt need because of the gold content in them) and he had three ceramic AMDs and three black fiber Intels. We made a change. He got 4 green fibers and I got three ceramics and one black fiber. I did it because some of the people in this forum showed how much do the different cpus cost. I had three exactly the same green AMDs :( He took only one of them :( I took his skype and now I can contact with him at any time.
 
plamenppp said:
You will like this one. I'll have only a few hundred of them in a week :(


Russian memory eprom K573RF5 contain 0,039gAu/piece and 0,049g Ag/piece, by producer catalog.
I have processed 5000 pieces, but for me the yield of Au was about 0.032g/piece

http://u18.tinypic.com/4tyfd41.jpg

teclu
 
I broke a potentiometer a looked what was inside earlier this day. Which part contains Pd?
 
plamenppp said:
I broke a potentiometer a looked what was inside earlier this day. Which part contains Pd?

Hello plamenppp,

The small piece from right side of picture, AgPd20 and some types of potentiometer AgPd50-60.

teclu
 
As always, teclu knows everything! Thank you! I am happy that you are here.

What is AgPd20 and AgPd50-60?
 
plamenppp said:
As always, teclu knows everything! Thank you! I am happy that you are here.

What is AgPd20 and AgPd50-60?


Thank you plamenppp but I know very little not everything, it's true that I broke thousands of old russian and east european electronic parts.
Ag80%Pd20%
teclu
 
This is what you can buy with about 11 USD in Bulgaria. There are more motherboards but they are hidden under these you see.
 
This is what you can buy with about 11 USD in Bulgaria. There are more motherboards but they are hidden under these you see.
how much gold do you think is there in this pile of scrap(in the photo)?

what I'm trying to say is you sould not be paying for scrap like this other things maybe o.k.
 

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