circuit boards and other common computer parts contain a small amount of gold and other precious metals. If you have the time and equipment, separating these metals from circuit boards can become a very lucrative venture. The process of separating metals from these boards involve the use of caustic chemicals, a detail that may make some people uneasy about recycling circuit boards. In most cases, there are no problems as long as you wear the proper safety equipment.
Instructions
1 Pour the jar of circuit board stripping powder into the one-gallon container. Dilute the powder with enough water to create one gallon of solution.
2 Lower the circuit boards into the solution bath. Allow the boards to soak in the solution for 6 to 8 hours.
3 Remove the circuit boards from the solution bath. Rinse the wrinkled gold flakes into another container.
4 Recover the gold flakes by filtering the rinse water with a kitchen strainer. Dry the flakes, and then melt and refine them as normal.