gold extraction from an old computers

Tips: If you want to know about our products,Enjoy this month's price discount, Please feel free to click the button below at any time!

How to Remove Gold from Circuit Boards. If you've opened an electronic device before, such as radios, televisions, or even your old cellphone, you've seen their inner ...How to Refine Gold from Computer Parts. ... from an old 5 1/4" disk drive and drop it in the bucket of leftover acid solution. I leave it in there for days or weeks.