What is the most environment friendly yet cheap way to process clean (no solder, most likely only Cu,Ni,Au) ENIG plated PCB's for Au and maybe also Cu?
Filtered Incinerating, crushing, smelting, electrolysis?
Bio leaching after grinding? (probably not practicable without housing the bacteria/archaea - however the most environment friendly i suppose)
Chemical process? I always read that it will create too much waste; true?
Mechanical filtering, crushing, weighting/washing + smelting?
Anything else?
This is basically new land for me as i usually just sold the traces, but boards (about 10% top layer only, the other ~90% are multilayer with many having 7+ layers of hefty copper >1000µm) are stocking up and i really want to process this myself, at least the Au if the Cu would be too hard.
So any input is welcome, also for crazy ideas :wink:
Thanks
Filtered Incinerating, crushing, smelting, electrolysis?
Bio leaching after grinding? (probably not practicable without housing the bacteria/archaea - however the most environment friendly i suppose)
Chemical process? I always read that it will create too much waste; true?
Mechanical filtering, crushing, weighting/washing + smelting?
Anything else?
This is basically new land for me as i usually just sold the traces, but boards (about 10% top layer only, the other ~90% are multilayer with many having 7+ layers of hefty copper >1000µm) are stocking up and i really want to process this myself, at least the Au if the Cu would be too hard.
So any input is welcome, also for crazy ideas :wink:
Thanks