Leaching of Copper from Waste Printed Circuit Boards Using Electro-generated Chlorine in Hydrochloric Acid

摘要: Electro-generated chlorine leaching of waste printed circuit boards was investigated in hydrochloric acid solutions. Non-magnetic component prepared by grinding, magnetic separation, and sieving. The non-magnetic pulverized board contained about 45% metal component, which copper 83.6%. rate greatly affected current density agitation speed. up to 98% achieved at , 180 minutes, 600 rpm 1M HCl Increasing lowering enhanced utilization efficiency electro-generated chlorine. Leaching suppressed the initial stage, while minor elements, such as aluminum, lead, tin, were dominantly leached out.