In small-scale and artisanal mining, mercury is used extensively to extract gold. In this practice, the gold reacts with ...

This method achieved a gold recovery efficiency of almost 100 percent. Electronic waste, often referred to as e-waste, consists of discarded electronic devices and components.

A big part of the recycling of electronic equipment is the recovery of metals such as gold. Usually the printed circuit boards and other components are shredded, sorted, and then separated. But eff… ...