文档介绍：Recovery of Metals from Waste Printed Circuit Board
by Electrostatic Separator
Zhao Yue-min1, 2, Wen Xue-feng3, Duan Chen-long1, Zhang Cui-yu1 He Jing-feng1
1. School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, China, 221116
2. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou, China, 221008
3. National Center of Solid Waste Management, Ministry of Environmental Protection, Beijing, China
llaoduan@

Abstract—Study on electronic scrap (ES) reutilization has materials with a great theoretical significance and use value,
important significance and application values, which can not only and it is a leading subject in the field of resources reuse and
achieve secondary resources recycling, but also prevent environmental pollution prevention.
environment pollution. Waste printed circuit board (PCB) is the
most important parts of ES and also one of the most arduous jobs to With a history of more than 40 years, the reclamation study
deal with because of its heterogeneity and plexity. The of PCB was started from the end of the 1960s. At first, the
distinct difference of conductivity between metals and nonmetals mining department of the United States had tried to extract
provides a feasibility to recover metals from PCB on –2+ precious metals from obsolete mil