philddreamer
Well-known member
I joined this great Forum 2 years ago this February, & I learned to process gold & silver scrap jewelry. Then I learned to recover & refine gold using the sulphuric cell. I've also learned to process some e-scrap, mainly fingers & cpu's, but, not enough experience in the other areas of e-scarp. So, I've gotten to the point of having to process this type of material, (black chips), in order to recover safely & efficiantly, any PM's from them. (E-scrap is starting to "come my way" with more frequency & it's time to start experimenting in this other areas & gain some experience.)
After reading the information, that's been kindly shared by some fellow members, I decided to give it a GO!
So, having at hand 3/4# of flat packs & bridges; 1.4# of ram black chips & 1.8# of an assorment of black chips from HD's, MB, PCB's & others, I've opted to use incenaration in order to get rid of the epoxy & free the metals in them.
I have a number of B-B-Q"s, so I pick the smallest & less used for incenarating the material, (it won't be used for cooking any more).
After lighting the charcoal & placed the 3/4# of flat packs & in less than 1 hr. they were done. Now, I used my propane torch to burn the smoke that started to seep thru the sides of the lid, like an afterburner; then I removed the lid, (at this point, the smoke was just about all gone) & finish roasting them with the torch. Then followed the 1.4# of ram chips; & after those, the 1.8# of mixed black chips.
After letting them cool & crushed them & proceeded to boil the 1.4# batch in diluted nitric.
Tomorrow I'll finish rinsing, & proceed to digest in AR.
As soon as I have a yield, I'll post it.
Any comments & advise will be welcome.
Phil
After reading the information, that's been kindly shared by some fellow members, I decided to give it a GO!
So, having at hand 3/4# of flat packs & bridges; 1.4# of ram black chips & 1.8# of an assorment of black chips from HD's, MB, PCB's & others, I've opted to use incenaration in order to get rid of the epoxy & free the metals in them.
I have a number of B-B-Q"s, so I pick the smallest & less used for incenarating the material, (it won't be used for cooking any more).
After lighting the charcoal & placed the 3/4# of flat packs & in less than 1 hr. they were done. Now, I used my propane torch to burn the smoke that started to seep thru the sides of the lid, like an afterburner; then I removed the lid, (at this point, the smoke was just about all gone) & finish roasting them with the torch. Then followed the 1.4# of ram chips; & after those, the 1.8# of mixed black chips.
After letting them cool & crushed them & proceeded to boil the 1.4# batch in diluted nitric.
Tomorrow I'll finish rinsing, & proceed to digest in AR.
As soon as I have a yield, I'll post it.
Any comments & advise will be welcome.
Phil