Recycling of NMF from WPCBs

  • Muammer Kaya
Part of the The Minerals, Metals & Materials Series book series (MMMS)


Cheap nonmetal fraction (epoxy resin, glass fiber, ceramics, etc.) accounts for 70% of e-waste/WPCB. It contains most of the hazardous brominated flame retardants. This chapter covers the direct and chemical recycling of NMF from WPCBs. Chemical recycling consists of combustion (smelting/incineration), pyrolysis, and depolymerization processes by using supercritical fluids, hydrogenolytic degradation, plasma treatment, hydrothermal methods, and gasification process. The purpose of thermal treatment of e-waste is elimination of plastic/epoxy resin components. Details of pyrolysis and hydrothermal depolymerization of WPCBs with different solvents are presented in this chapter.


Nonmetal fraction (NMF) Chemical recycling Pyrolysis Depolymerization Solvents Subcritical fluids 


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Muammer Kaya
    • 1
  1. 1.Mining Engineering DepartmentEskisehir Osmangazi UniversityEskisehirTurkey

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