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I have made soldering braid from the woven tin plated copper wire thats across the screen on a CRT Tv. Just melted some rosen flux into the braid & used it like that.Quote:
Originally Posted by Phantoms001
Last night I relised that a vacuum pump made from a old fridge motor may be used to suck the solder off too. Like the little hand held solder sucker pumps I see sometimes, but industrial.
IC chips are what make board attractive, not plated pins. Gold plated pins on motherboards do have only small amount of gold on them comparing to IC chips. Processing is not that complicated but require a lot of time and patience. I would gladly toll refine your IC chips or buy them outright but I am located overseas (Ireland) so all I can do is to advise you on values and help with processing.
Pat.
It's hard to nail down yields on ICs unless they are all the same.
Ceramic are worth more than the ones made of plastic, they are older and have more PMs and easier for home refiners to process so would bring more per lot.
Are they all ICs are are their proms/eproms also? Any with windows?
Some of the ones that look like they have little gold, actually have fairly good yields of Pd and sometimes Pt and Ag.
ICs increase in value the older they are either as collectable or because PMs were less expensive and they were not too worried about how much they applied in the manufacturing.
If you have ICs, mixed with other chips that look like ICs you may have more valuable chips than you realize. If it has a window, it's an eprom and worth more. CPUs often have gold caps, sometimes on both top and bottom and are of course worth even more in PMs.
I person I purchase material from on a fairly regular basis gave me a 5 gallon bucket of Eproms he had been saving for awhile. None of them had any gold plating to speak of. He asked me if I wanted them, and told me he would give them to me for nothing if I told him what I was able to recover from them. Needless to say I recovered a fair amount of Pd, and ended up giving him part of the return just because it was so good, I felt bad about not. All that glitters is not gold, sometimes it's some other PGM.
Scott
Correct.
Most of them do have Ag or Pd (or some AgPd alloy) inside in form of plating.
I would not say that ceramic eprom are more valuable from precious metal content-wise. They are heavier thus less of them in a kilogram comparing to plastic resin chips.
As you said, it is hard to get to correct value or yield for kilogram that is why I do call them like high, middle or low grade where high is 5g and more Au from kilogram and low is up to 1g Au from kilo.
Welcome to the SMF Pat, while cleaning up and organizing my shop came across two 20 liter pails of IC's that I pyrolyzed last year. The majority of the chips came from telcomm boards when I was removing them some broke open and you certainly could see visible gold.Quote:
Originally Posted by patnor1011
Now I'm going to find a gold pan and get busy panning for gold, actually I'm going to build an E-Tower which takes less effort than panning. I suppose a blue bowl or a gold wheel would work just as well.
Yes, blue bowl might work perfectly for that. I still do use just pan and that get tiresome when processing larger quantities but as I work through that sight of gold bonding wires and dust accumulated on bottom is some reward. :)
Is that you Gill?
Yes Pat it is I, yes it is as I stated in the begining on the gold forum mining e-waste chips and IC's is no different from mining the earth you have to liberate your precious metals in order to reclaim them.Quote:
Originally Posted by patnor1011
In nature glaciers did the dirty work, gravity and running water forced the gold to accumulate, Man in his wisdom copies mother nature.
Nice to meet old friends. I mentioned that in GRF already that you were the first person who inspired me in my experiments, I still remember how I got to that "this may work I have to try it" feeling seeing your post and pictures.
Quote:
Originally Posted by patnor1011
patnor1011 here's a link to an E-Tower, half way down the page you can see it in action. This bit of kit would be easy to make but it is also sold under Quick Gold separator for $60.00. http://www.coloradoprospector.com/fo...?showtopic=470
The round screen is the most important part as it diffuseness the water stream advancing to the top of the column, with the right flow of water you can keep even the lightest particles in suspension using the siphon to remove the upper most.
I think that I would add a surfactant to keep the floaters to a minimum.
Below are some pictures of an E-Tower.
http://i1207.photobucket.com/albums/...m/etower2a.jpg
http://i1207.photobucket.com/albums/...m/etower2b.jpg
http://i1207.photobucket.com/albums/...m/etower2c.jpg
Wow friend, that is some cool unit right there. :cool: Can't say that I've seen anything like it in all of the prospecting research I've done on the web. Thanx 4 sharing that. A light just came on over here. ") lb