Research » Waste Treatment and Primary Metallurgy

The primary production of metals is usually accompanied by by-product residues. These residue streams are a potential problem due to environmental concerns. Contained in these residues are valuable metals in lower grades than the primary production source.  The IME is seeking means to exploit these vast secondary resources for value reclamation through development of innovative processes.
The focus areas include and are not limited to the following: slag cleaning for recovery of precious metals, landfill mining to recover metals and plastics, red mud processing for recovery of high value metals such as Sc and Ga. Inertization of slags is another large research focus. Metallurgical slags can be modified so that they may be used e.g. as cement additives or as road building materials. This “zero-waste” approach contributes enormously to a sustainable metal production, which is actively propagated by IME in R&D projects and teaching.
The processing of these materials at IME is predominantly undertaken by pyrometallurgical means. The facilities at IME for processing of the aforementioned resources comprise laboratory scale and demonstration scale furnaces and converters. Activities within IME in this area include thermochemical process modelling, high temperature experiments to validate the theoretical basis.

Project List


Publications

YearPublications
2025
article in scientific journal
Resources, Conservation & Recycling 227 (2026) 108766
Ayesha Tasawar, Daniel Munchen, Alexander Birich, Rungsima Yeetsorn, Walter Sebastian Scheld, Waritnan Wanchan, Benjamin Butz, Bernd Friedrich
2025
article in scientific journal
Minerals 2026, 16, 47 https://doi.org/10.3390/min16010047
Soner Top, Mahmut Altiner, Huseyin Vapur, Sait Kursunoglu, Srecko Stopic
2026
article in scientific journal
Processes 2026, 14, 33 https://doi.org/10.3390/pr14010033
2025
article in scientific journal
Conceptual Recycling Chain for Proton Exchange Membrane Water Electrolyzers—Case Study Involving Review-Derived Model Stack. Recycling 2025, 10, 121. https:// doi.org/10.3390/recycling10030121
Malena Staudacher, Dominik Goes, Sohyun Ahn, Dzeneta Vrucak, Tim Gießmann, Bernhard Bauer-Siebenlist, Thomas Leißner, Martin Rudolph, Jürgen Fleischer, Bernd Friedrich, Urs A. Peuker
2025
article in scientific journal
Alexander Birich et al.: Anwendungspotentiale von Wasserstoff in der Nichteisen-Metallurgie
2025
congress or congress paper
56th International October Conference on Mining and Metallurgy, Borsko jezero
2025
poster
European Metallurgical Conference 2025
2025
poster
European Metallurgical Conference 2025
2025
congress or congress paper
9th International Slag Valorisation Symposium
2025
congress or congress paper
European Metallurgical Conference 2025
de_DEDE