Originally Posted by
DevinThaScrapper
Not worth it for ic chips, can get $6/lb for those, but very interesting, where in tvs is this found?
Chips from ram are a lot smaller than IC's, I just finished up ball milling 276 lbs of ram 1/3rd of the total weight is magnetic - Kovar also if milled for a prolonged time will turn to powder liberating any gold that may have been attached.
As a matter of interest I put the whole ram stick fingers and all into the ball mill, from the sample below you will note that the chips and small surface mount capacitors were removed in the mill and that the soft gold has been abraded from the boards into a very fine powder suitable for cn leach to recover of the gold and silver then eventually incineration in preparation for an acid digestion to recover palladium.
If you look closely where the gold was plated onto the fingers you will see the gold wore off leaving the nickel plate untouched.
An interesting fact brought to my attention from a fellow refiner. He incinerates his chips whole and he tells me it take hours in the propane furnace and even then when he removes the chips may find some with an incomplete burn and have to sorted out and returned to the furnace.
My chips are incinerated after ball milling, what my friend discovered from our conversation is that his loosely packed chips requires a continuous supply of fuel.to oxidise anything that will then burn up any organic material which maybe present.
While my milled often wet chip powder goes into the frying pan roughly two inches deep goes into the oven at 550 degrees for 1 hour then onto the stove top. The whole thing at this point looks rather benign with the surface looking like ash.
Now if you turn over the lot you'll discover the inside is aglow like burning coal, I'll gently turn the mass exposing the glowing coals to oxygen then leave of for an hour then do the same once more this time abandoning it to burn out on its own time.
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