Research » Technology Metals (Extraction and Recycling)

Critical metals are, by definition, metals that are of high economic importance and at the same time exhibit significant supply risks. Elements that are ascribed as especially critical are, for example, rare earth elements, platinum group metals, but also antimony and niobium.
At IME, pyrometallurgical as well as hydrometallurgical processes for economic, efficient and environmentally friendly treatment and extraction of critical metals are investigated. The following list abstracts some of our current research topics in this field:

– alternative Bismuth extraction route from lead industry residues

– extraction of rare earth elements from eudialyte ore via cascade leaching

– precious metal recycling by application of suitable slag systems

– extraction of antimony trioxide from lead industry residues

– metallothermic reduction of scandium compounds

Project List


Publications

YearPublications
2025
congress or congress paper
Proceedings of EMC 2025
2023
congress or congress paper
European Metallurgical Conference 2023 (EMC 2023); DOI: 10.13140/RG.2.2.18029.97767
2023
congress or congress paper
TMS 2023: Light Metals 2023 pp 1204–1206; DOI: 10.1007/978-3-031-22532-1_161
Henk van der Laan, Beate Orberger, Carsten Dittrich, Robin Scharfenberg, Edward Peters, Georges Croisé, Pierre Feydi, Carolin Maier geb. Mazurek, Richard Schneider, Bernd Friedrich, Yashvi Baria, Konstantinos Sakkas, Christos Georgopolous
2022
article in scientific journal
ACS Sustainable Chemistry & Engineering 10(18):6063-6071, DOI: 10.1021/acssuschemeng.2c01056
Sebastian Hedwig, Bengi Yagmurlu, Danyu Huang, Oliver von Arx, Carsten Dittrich, Edwin C. Constable, Bernd Friedrich, Markus Lenz
2021
congress or congress paper
Mater. Proc. 2021, 5, 86; https://doi.org/10.3390/materproc2021005086; International Conference on Raw Materials and Circular Economy, Athens, Greece, 5. – 9. September 2021
2020
article in scientific journal
Journal of Materials Research and Technology (IF 3.327) DOI: 10.1016/j.jmrt.2020.02.063
2019
article in scientific journal
Journal of Materials Research and Technology, Volume 8 (2019) DOI: 10.1016/j.jmrt.2019.11.049
2019
article in scientific journal
Scientific Reports 9 (1): 1-10, DOI: 10.1038/s41598-019-48390-z
Bengi Yagmurlu, Gözde Alkan, Buhle Xakalashe, Claudia Schier, Lars Gronen, Ichiro Koiwa, Carsten Dittrich, Bernd Friedrich
2019
article in scientific journal
Industrial Engineering Chemistry Research 58(32); DOI: 10.1021/acs.iecr.9b02411
Bengi Yagmurlu, Wenzhong Zhang, Mikko J. Heikkilä, Risto T. Koivula, Bernd Friedrich
2019
article in scientific journal
Hydrometallurgy 185 (2019), pp. 266–272 DOI: 10.1016/j.hydromet.2019.03.008

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