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Recovery of PC/ABS from WEEE plastic shred by the CreaSolv® process

 
: Schlummer, Martin; Wolff, Fabian; Mäurer, Andreas

:

Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration -IZM-, Berlin; Institute of Electrical and Electronics Engineers -IEEE-:
International Congress Electronics Goes Green 2016+, EGG 2016. Proceedings : Inventing shades of green; September 7-9, 2016, Berlin, Germany; Proceedings
Piscataway, NJ: IEEE, 2016
ISBN: 978-3-00-053763-9
ISBN: 978-1-5090-5208-0 (Print)
pp.232-237
International Congress Electronics Goes Green 2016+ (EGG) <2016, Berlin>
European Commission EC
H2020; 641747; CloseWEEE
Integrated solutions for pre-processing electronic equipment, closing the loop of post-consumer high-grade plastics, and advanced recovery of critical raw materials antimony and graphite
English
Conference Paper
Fraunhofer IVV ()

Abstract
Waste of electrical and electronic equipment (WEEE) contains a series of valuable substances, which are used as secondary raw materials. There are however some WEEE components that are currently not recycled due to technical and economic hurdles. This paper presents results indicating that pre-treatment of mixed shred of WEEE plastics by x-ray transition (XRT) and density sorting enables an effective pre-concentration of the target polymers ABS and PC/ABS. XRT provides a fraction of halogen free polymers, whereas a sink and float approach enriches ABS and PC/ABS further to a purity of 60 – 90%. Subsequent purifying of the target polymer was performed by the solvent-based CreaSolv® Process. FT-IR spectroscopy identifies the product clearly as ABS and PC/ABS. Other material characteristics of recycled PC/ABS are well comparable to virgin and conventionally recycled grades of PC/ABS.

: http://publica.fraunhofer.de/documents/N-452397.html