RESEARCH OF DISSOLVE COPPER AND SILVER METAL FROM ELECTRONIC CIRCUIT BOARDS USING Fe2(SO4)3 FROM WASTE IRON

Abstract

Electronic circuit board is a kind of hard-to-decay solid waste but contains
many economically valuable metals such as Cu, Ag, Zn... Recovering metals
brings economic value while solving the problem, environmental pollution. Our
study found a method for simultaneous separation of copper and silver metal
from the waste circuit board using Fe2(SO4)3 separation agent. Fe2(SO4)3 is an
effective and safe separating agent, especially prepared from waste iron chips.
Research results include conditions for converting iron chips into Fe2(SO4)3;
conditions of simultaneous separation of Cu and Ag from electronic circuit
boards. Thereby determining the separation efficiency to guide the recovery of
the two metals. The proposed metal separation process ensures high
performance and is safe for the environment and people.