9kuuby9 said:
I'm glad to help you out. I know that participating gold with SMB or Coperras in a chloride solution causes PGM's drag down. In a nitrate solution it can fully participate Pd.
The best way of recovery is to use eficient methods in recovering vairous metals;
U can crush the MLCC's wich is time consuming but it will leach faster and have better yield results.
I first tend to use nitric 50/50 D. water to leach the base metals including Ag & Pd; after 2 or 3 leaches of fresh nitric solution; filter the solids out including the metastannic acid.
Drop out the Pd in the filtered nitrate solution with SMB or Coperras and; filter nitrate solution then recover the Ag with your preferred method.
Incinerate the solids including the metastannic acid; Then put the Incinerated solids in hot HCl; wash the solids a prepare boiling AR with a watchglass to leach Pt if it contains any.
After the recovery you can refine it or add it to your stock pot for later.
Since this is my first time dealing with MLCC's and have read so much on processing these, I have accumulated a few lbs worth of them so far. And since I'm going to start my first batch today sometime (hopefully) and go for it, this method seem to me, to be the quickest way to refine and recover these MLCC's.
I have been reading and waiting for about 3 years now, and now is my time to process these. I've seen some videos that now that I understand it better, some of those videos and other information is doing 10 things when you could have just done 4 things and achieve the same result(s).
Since I never refined for palladium before, this is something I can understand more so now, just by rereading threads and other information. I am confident that the method quoted above is something I'm definitely going to implement. It makes much sense to me. I have been holding and collecting these mlcc's for years now, and now that I've done my fair share of refining gold and silver bearing items. Now I'm ready for the Palladium. It's less than gold and it's more than silver.
I am thinking that these are easier to refine than one may think.
Let me ask something.
a) Would Muriatic acid work for this or straight HCL? My Muriatic Acid is 31.45% HCL
b) Will MAPP gas (disposable tank) be hot enough to melt the palladium? I read 3600F+ with air, and 5800F with oxygen is how hot MAPP gas will get. The one with air, a person would have to introduce air into the torch somehow? And does this mean getting a acetylene torch?
I just remembered that I need to get some Nitric acid. Using the Nitric acid, have anyone calculated how much (approximately) nitric acid is needed to dissolve all it can with 1lb. of the mlcc's. From looking at my own, 1 lb of them can easily fit in a 2000mL beaker with plenty of space left.
According to this method, just to get to the palladium, it already saved time and steps to take. When I think about it, from what I've learned over the years refining, every method I've read and saw all have you understanding that it's going to take days to do it when you can actually get to see some palladium that same day. From powder to metal. I am glad I reread many threads here on the forum.
This method eliminates the need of adding zinc to it and other steps I've seen before.
As I wait on some more acid, I'll just crush them up and have them ready for solution. Once I get it going, I'll post my results here.
Thanks.
