Sperating gold from lead.

[Mlwaj78956]

I have lead mixed with gold. I usually skim it off the top of the solder fountain during cleaning. I save the skimmed part and it is fairly gold in appearance. The gold comes from electronic parts being stripped of it's gold. Over time I have a decent amount to consider separating. Just need some advice on what is best method.

 

[butcher]

Bone ash cupel will absorb the lead.

 

[Owltech]

I don't think the top layer that you've skimmed is rich in gold (despite the appearance). Anyway, cupellation would be my weapon of choice when it comes to parting lead and PMs.

 

[Ron John]

your already in the coupling process just finish bone ash followed by AR

 

[Edlin]

If you don’t have bone ash you can make a cupel from portland cement.

 

[snoman701]

if i recall correctly, add aluminum powder, mix really well, then skim off the dross. the dross will collect the gold.