precipitate palladium

[mohamedmsud]

hello , i want to precipitate palladium from nitric acid , i already got gold and silver from the solution but i don't know how to get other things from it ...i had 1 kilo of gold ,silver,others mixed with cooper >>> i used nitric acid to get the gold.... now i have the remaining things stuck with the solution what should i do next ..... i did this operation a lot of times and i have more than 200 liters of this solution ..

 

[FrugalRefiner]

Please don't double post. I removed your other post.

The simplest method to recover any palladium would be to cement it out with copper.

Dave

 

[Geo]

Dave is correct. If you have time and it's not a pressing matter, suspend solid copper metal in the solution. You should only do this after the solution is clear with no sediment. If the solution is too black to see through, it can be diluted with a 90% water and 10% HCl solution until the solution is clear enough to see through. This should be your first step. Dilution, filter and suspend copper metal in the solution. Do not allow the copper metal to sit on the bottom of the container. It should be nearer the top but not exposed to the air. You may add an air bubbler for agitation, which helps and speeds up the process. If time is important, the process can be sped up further with heating.

 

[canedane]

Hello mohamedmsud.
How did you drop the silver from your solution with out dropping the Pd?
Have you test your solution for Pd?
Henrik

 

[mohamedmsud]

thanx to all of u bros , i ll try to do that but what about DMG in this case ?

 

[mohamedmsud]

i used NaCl (food salt ) to get the silver from the solution , then i tested the outcoming its only silver with nothing else so i want to see if there is any thing else

 

[steven]

Hello.
I have tried to cement Pd, after extracting Ag as silver chloride, by hunging copper sheets.
The palladium was stuck on the surface of the copper and I had to use a file to take it off.
I haven't tried agitation though.

 

[FrugalRefiner]

Agitation is the key. Without it, not only will it be difficult to cement out all the PMs, but they can also adhere as yours have.

Dave

 

[anachronism]

Possibly a little left field here but has anyone ever tried an ultrasonic probe to provide agitation?

 

[snoman701]

not a probe, but played with my cleaner a bit.

won't do it in a beaker though, just like boiling. very violent process and the losses can be significant.

 

[steven]

A magnetic stirrer with heat might do the work, it's something quite cheap