jewelerdave
Well-known member
This is only for the experts so please only respond if you know and are not guessing.
I have previously separated my palladium bearing scrap to send into a larger refiner for processing. However I decided to try it myself.
Out of five ounces of bench sweeps processed with AR I was able to recover just over 2ounce of fine gold...about normal for the mix of scraps I do.
this one had a bit more palladium White gold contained.
After the AR treatment the solution was brown rather than the normal emerald green I usually get when doing scrap gold. I am going to assume this is the palladium doing this?
After pulling the gold I re concentrated the brown solution from about a gallon to about 1000 ML and I got a red froth on top and some in the bottom of the beaker, and my solution had turned green. What happened here as I did not add any ammonia Chloride yet.
I added a little ammonium chloride to be safe and the result was the same.
I filtered off the red froth and sludge on the bottom, I have the solution boiling down some more to make sure I got it all but when I melted the red stuff I recovered about 1/4 ounce of shiny gray metal that looks identical to some of my pure palladium stock.
It reduced down a lot, the red salt was very light, and it condensed down quite a ways when I melted it. Does this palladium salt have a large volume? Id didnt need any flux, or did I burn something away?
My question is.
Is this my palladium? or is it nickel from white gold?
Is this a way to recover palladium?
Is this going to be at least 99% pure so that it can be reused in jewelry?
I have posted a picture below.
I have previously separated my palladium bearing scrap to send into a larger refiner for processing. However I decided to try it myself.
Out of five ounces of bench sweeps processed with AR I was able to recover just over 2ounce of fine gold...about normal for the mix of scraps I do.
this one had a bit more palladium White gold contained.
After the AR treatment the solution was brown rather than the normal emerald green I usually get when doing scrap gold. I am going to assume this is the palladium doing this?
After pulling the gold I re concentrated the brown solution from about a gallon to about 1000 ML and I got a red froth on top and some in the bottom of the beaker, and my solution had turned green. What happened here as I did not add any ammonia Chloride yet.
I added a little ammonium chloride to be safe and the result was the same.
I filtered off the red froth and sludge on the bottom, I have the solution boiling down some more to make sure I got it all but when I melted the red stuff I recovered about 1/4 ounce of shiny gray metal that looks identical to some of my pure palladium stock.
It reduced down a lot, the red salt was very light, and it condensed down quite a ways when I melted it. Does this palladium salt have a large volume? Id didnt need any flux, or did I burn something away?
My question is.
Is this my palladium? or is it nickel from white gold?
Is this a way to recover palladium?
Is this going to be at least 99% pure so that it can be reused in jewelry?
I have posted a picture below.