kurtak
Well-known member
I have a client who has access to 430 kg of copper powder that's 99.9994% pure, with sub-40-micron size
at 40 (minus) microns would mean that the copper powder is between 325 mesh & 400 mesh
45 microns = 325 mesh
37 microns = 400 mesh
I "assume" this is copper that has been put through the atomization process
Here is a link to a thread that describes the atomization process
https://goldrefiningforum.com/threads/is-it-possible-925-sterling-silver-powder.30689/
Atomized metal powders - including but not limited to copper powder has many uses including but not limited 3D printing - metal clay casting - metal paste solders - metal inks & paints etc. etc. (I believe a listed other uses in the above linked thread)
So those are markets to look into for selling this copper powder (& why atomized copper powder is sold on Ebay)
There is no need for this kind of Copper here.
Not quite true - this is the perfect copper powder for cementing PMs (gold/silver/PGMs) from solutions - especially for cementing PGMs from solutions (as pointed out by 4metals & Jon) - & I have posted MANY times about the benefits of using atomized copper for cementing PMs from solution
In fact - I very recently cemented about 1/2 ozt Pd from a solution with atomized copper - had it XRFed last weekend & the XRF said it was 997 Pd
I also very recently used atomized copper to cement about 1 ozt of Ag/Pd from a solution - XRF said the Ag/Pd was 80% Ag 20% Pd
Also very recently cemented about 2.25 ozt gold from solution with atomized copper - XRF said it was pure 999 gold
I love my atomized copper powder - use it ALL THE TIME for cementing PMs
Kurt