Palladium Removal electrolisis cell

[diego Henrique vilela]

Good morning to all friends. Does anyone have knowledge of palladium removal electrolysis cell? I have palladium-plated wires and I need to remove the palladium.
The base material Is cooper Bath Palladium plated.
I have 500 Kg this Is material , in anexed onde Photo.

 

[4metals]

You could melt the wire and the Palladium Copper alloy should be 99% Copper so it will work in a copper refining cell and collect the Palladium in the anode slimes.
https://goldrefiningforum.com/threads/electrolytic-copper-refining-cell.25596/

 

[diego Henrique vilela]

You could melt the wire and the Palladium Copper alloy should be 99% Copper so it will work in a copper refining cell and collect the Palladium in the anode slimes.
https://goldrefiningforum.com/threads/electrolytic-copper-refining-cell.25596/

Good afternoon, I've already done the test like this but it's unfeasible... melting many kilos of wire and assembling a cell... this generates a high cost and the amount of palladium is small. I need a chemical method that works like the gold deplating agent but for palladium... with or without electrolysis.

 

[orvi]

Good afternoon, I've already done the test like this but it's unfeasible... melting many kilos of wire and assembling a cell... this generates a high cost and the amount of palladium is small. I need a chemical method that works like the gold deplating agent but for palladium... with or without electrolysis.

According to one patent, there is a possibility to go with cyanide, but molten bath of cyanide+caustic is not what I imagine as a process that is better than copper cell I won´t do this on my own. Too risky.

However, you can try to run it through sulfuric stripping cell to see if you can get it to work. Theoretically, it should be working by generating some palladium sulfates, maybe some reduced palladium on the cathode, hard to say.

Only fact would be that copper won´t react in the cell if the copper surface would be exposed.

 

[4metals]

Good afternoon, I've already done the test like this but it's unfeasible... melting many kilos of wire and assembling a cell... this generates a high cost and the amount of palladium is small. I need a chemical method that works like the gold deplating agent but for palladium... with or without electrolysis.

If you are starting with copper wire which has only Palladium plated on it, you could leach the Palladium off with nitric acid. You could pull out the wires when the Palladium has dissolved but you will eat some of the copper. You could use that same left over copper to cement the Palladium out of solution as a metal for recovery. You will not easily recover the copper from a nitrate solution.

 

[diego Henrique vilela]

I don't care if I lose a little copper, I just need the simplest way possible... 1 kilo of wire should have something between 0.8 and 1 G of palladium. I've already done it using nitric... it works, but no one can stay close to check it because the smoke and temperature are high.

 

[4metals]

NOx is rather well behaved fume and a properly designed hood over the reaction should get the fume up and away from you. Hopefully through a fume scrubber.