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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Recycling of Jarosite and Electric Arc Furnace Dust in a Metal Bath Process to Recover Valuable Metals
Stefan Wegscheider1; Juergen Antrekowitsch2; Stefan Steinlechner3;1MONTAUNIVERSITAET LEOBEN, Leoben, Austria; 2CHRISTIAN DOPPLER LABORATORY FOR OPTIMIZATION AND BIOMASS UTILIZATION IN HEAVY METAL RECYCLING, Leoben, Austria; 3CHAIR OF NONFERROUS METALLURGY, Leoben, Austria;
Type of Paper: Regular
Id Paper: 57
Topic: 7
Abstract:
The recycling of hazardous metallurgical waste, such as jarosite, a precipitation residue from the hydrometallurgical zinc winning route and electric arc furnace dust (EAFD) from the iron and steel industry displays one aim for the future to open up new chances for secondary resources and to avoid landfilling. More than 50 % of the worldwide production of EAFD and the majority of the jarosite are still dumped, although there are valuable metals, such as zinc, lead, indium, silver and iron present in these by-products.
Since the EAFD and the jarosite represent a high economical potential, a metal bath process offers a possibility to reprocess both residues together and to achieve a multi-metal recovery. The advantages of the process are that two residues can be treated together to recover valuable metals, while at the same time no more dumping of the waste is necessary. The products of the process include a metal-bearing off-gas, an iron alloy as well as a slag. This paper describes the concept of the developed metal bath process and shows first results of carried out lab-scale trials.
Keywords:
Dust; Recycling; Wastes; Zinc;References:
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