Characterization of solid, liquid and gaseous products from waste printed circuit board pyrolysis

2021 ◽  
pp. 127881
Author(s):  
Weifang Chen ◽  
Yanjun Chen ◽  
Yongkai Shu ◽  
Yinan He ◽  
Jinbo Wei
Keyword(s):  
Printed Circuit Board ◽  
Circuit Board ◽  
Printed Circuit ◽  
Gaseous Products ◽  
Waste Printed Circuit Board ◽  
Solid Liquid

scholarly journals Co-Pyrolysis of Waste Printed Circuit Boards With Iron Compounds for Br-Fixing and Material Recovery

2021 ◽  
Author(s):  
Weifang Chen ◽  
Yongkai Shu ◽  
Yonglun Li ◽  
Yanjun Chen ◽  
Jianbo Wei
Keyword(s):  
Iron Oxides ◽  
Printed Circuit Boards ◽  
Printed Circuit Board ◽  
Glass Fibers ◽  
Liquid Product ◽  
Circuit Board ◽  
Printed Circuit ◽  
Gaseous Products ◽  
Waste Printed Circuit Boards ◽  
Waste Printed Circuit Board

Abstract Waste printed circuit board was co-pyrolyzed with iron oxides and iron salts. Solid, liquid and gaseous products were collected and characterized. Co-pyrolysis with FeCl2, FeCl3 or FeSO4 was able to increase the yield of liquid product which was rich in phenol and its homologues. Also, the addition of co-pyrolysis reagents reduced the release of brominated organics to liquid as Br was either fixed as FeBr3 in solids or released as HBr. In particular, FeCl2 showed the best ability to reduce the release of Br-containing organics to liquid compared with FeCl3 and FeSO4. Solid residuals were rich in iron oxides, glass fibers and charred organics with surface areas of 20.6-26.5 m2/g. CO2 together with a small amount of CH4 and H2 were detected in the gaseous products. Overall, co-pyrolysis could improve the quantity and quality of liquid oil which could be reused as chemical or energy sources. Pyrolysis of waste printed circuit board was promising as a method for recycling.

Studies on the Reuse of Waste Printed Circuit Board as an Additive for Cement Mortar

2005 ◽  
Vol 40 (3) ◽  
pp. 645-656 ◽  
Author(s):  
Bong-Chan Ban ◽  
Jong-Yoon Song ◽  
Joong-Yeon Lim ◽  
Soo-Kyoon Wang ◽  
Kwang-Guk An ◽  
...  
Keyword(s):  
Printed Circuit Board ◽  
Cement Mortar ◽  
Circuit Board ◽  
Printed Circuit ◽  
Waste Printed Circuit Board

Waste Printed Circuit Board (PCB) Recycling Techniques

2017 ◽  
Vol 375 (2) ◽  
Author(s):  
Chao Ning ◽  
Carol Sze Ki Lin ◽  
David Chi Wai Hui ◽  
Gordon McKay
Keyword(s):  
Printed Circuit Board ◽  
Circuit Board ◽  
Printed Circuit ◽  
Waste Printed Circuit Board ◽  
Recycling Techniques

An impact crushing dynamic model of waste printed circuit board particles

2012 ◽  
Vol 39 (8) ◽  
pp. 3611-3630 ◽  
Author(s):  
Shibing Hou ◽  
Yunxia He ◽  
Deming Yang ◽  
Zhenming Xu
Keyword(s):  
Dynamic Model ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Printed Circuit ◽  
Waste Printed Circuit Board ◽  
Impact Crushing
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