2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 7. Recycling, Secondary Batteries and Environmental Protection
| Editors: | Kongoli F, Aifantis K, Kumar V, Pagnanelli F, Kozlov P, Xueyi G |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 205 pages |
| ISBN: | 978-1-987820-73-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Pyrometallurgical Processing and Slag Analysis of Waste Electrical and Electronic Equipment
Christoph Sorger1; Stefan Luidold2; Stefan Konetschnik3; Tim Haslinger3;1MONTAUNIVERSITAET LEOBEN, Leoben, Austria; 2MONTANUNIVERSITAET LEOBEN, Leoben, Austria; 3, , ;
Type of Paper: Regular
Id Paper: 59
Topic: 7
Abstract:
Due to the increasing demand of electronic devices the amount of waste electrical and electronic equipment (WEEE) continuously rises. Therefore suitable recycling processes are essential in order to treat such 'End of Life' - products. The necessity is given on the one hand on the valuable and also critical containing metals (such as copper and the precious ones) and on the other hand on hazardous substances (like brominated flame retardants), which might be manufactured in these appliances.
Pyrometallurgical melting procedures represent one possibility for a proper recycling. A big environmental problem lies in the fact that with usage of a direct incineration the hazard of the formation of dangerous halogenated dioxins and furans is given, which can be avoided by a previous pyrolysis step or a proper post-combustion.
The product of such processes are metallic, slag and gaseous phases. The less noble elements form an oxidic slag phase. Due to the fact that this by-product might contain a lot of various elements (like iron, silicon, aluminum, calcium, etc) depending on diverse process conditions an appropriate investigation is necessary. This includes the different containing phases as well as the melting behavior in order to implicate a suitable treatment of such a slag.
Keywords:
Recycling; Scrap; Slags; Sustainability; Wastes;References:
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