hazemhxz1 said:
I visited china looking for ewaste gold deplating system I paid deposit for a system . ------------------- Should i refine scrap ceramic Cpu ?!I want to import large quantities of CPUs rams or mother boards
hazemhxz1
Per the underlined --- you say you put a deposit on a "gold de-plating system"
Then you ask what material you should buy to run in that de-plating system (CPUs &/or RAM &/or mother boards)
the answer to your question is NONE of those items & here is why
In the first place - if the system is in fact a de-plating system - then it is most likely a cyanide stripping system run along with an electro winning system for recovering the gold from the cyanide stripping solution
Soooo ----
CPUs - it (the system) will strip the gold plating from the pins & the gold plated lids if they are ceramic CPUs with gold plated lids - BUT - it will NOT get the gold from the braze used to braze the pins & the lids to the CPUs - it will also NOT get the gold from the gold bonding wires in the cavity of "some" CPUs & it will NOT get the gold plating "under" the silicon die in the cavity of the CPUs
That means the system is NOT going to get ALL the gold - you will only get half (or less) of the gold
RAM - the gold de-plating system is ONLY going to get the exposed gold (the gold you can see) plated on the RAM boards (some RAM has gold plating that is NOT exposed - under the green solder mask etc.) - it will NOT get the gold bonding wires "inside" the IC chips of the RAM
So - again you are only going to get half (or less) of the gold
Mother boards - the de-plating system is flat out NOT made to recover gold form mother boards &/or most other CBs (Circuit Boards) --- unless they are CBs that have gold plating - AND - have NEVER had anything else soldered &/or attached to them
The point is --- there is MORE gold in E-waste - then just the plating
AND - the other point is - don't you think you should LEARN where the gold is in E-waste - AND the "different" processes for getting ALL that gold --- BEFORE you go buying a system that is only going to get half (
or less) of the gold - AND --- BEFORE you go spending LOTS of money on LARGE volumes of material that the VERY expensive system you are buying is not designed to recover ALL the gold from :?: :?: :?:
What the others are trying to tell you is - you are spending (or planning to spend) a LOT of money on something BEFORE you even know anything about what it is you are spending money on --- YOU just are not liking the answers you are get - even though the answers you are get are in fact the right answers
Kurt