METHOD FOR RECOVERY OF METALS FROM WASTE PRINTED CIRCUIT BOARDS

摘要

Provided is a method for recovery of metals from waste PCBs including (a) injecting water into cut waste PCBs and conducting ball milling to liberate metals and plastics from each other to thereby prepare a mixture containing the metals, the plastics and water; and (b) using the mixture as a pulp solution and subjecting the pulp solution to floating separation to separate and recover the liberated metals. The present invention provides increased separation efficiencies of metal components and non-metal components from the waste PCBs, and particularly, provides a simple and economic process that can recover the metal components existing in the plastic components.