Separation and recovery of materials from scrap printed circuit boards

William J. Hall and Paul T. Williams

Resources, Conservation & Recycling, 2007, vol. 51, issue 3, 691-709

Abstract: Printed circuit boards from waste computers, televisions, and mobile phones were pyrolysed in a fixed bed reactor with the aim of separating and recovering the organic and metallic materials. A selection of printed circuit boards from each of the three waste classes was pyrolysed at 800°C and the pyrolysis products were analysed using GC-FID, GC-TCD, GC-MS, GC-ECD, ICP-MS, and SEM-EDX. The pyrolysis oils contained high concentrations of phenol, 4-(1-methylethyl)phenol, and p-hydroxyphenol, as well as bisphenol A, tetrabromobisphenol A, methyl phenols, and bromophenols. The pyrolysis oils also contained significant concentrations of organo-phosphate compounds and a number of tetrabromobisphenol A pyrolysis products were also identified.

Keywords: Printed circuit board; Recycling; Pyrolysis; Materials recovery (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:51:y:2007:i:3:p:691-709

DOI: 10.1016/j.resconrec.2006.11.010

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