Non-Ferrous-Metallurgy in Aachen -Short Department Presentation B. Friedrich

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1 Non-Ferrous-Metallurgy in Aachen -Short Department Presentation B. Friedrich IME Process Metallurgy and Metal, RWTH Aachen University Prof. Dr.-Ing. Dr. h.c. Bernd Friedrich

2 Our business education in non-ferrous metallurgy process development consulting Bachelor/Master and Dr.- degree Extractive Metallurgy & Refining Assessments and studies

3 Staff Management Prof. Dr.-Ing. Dr. h.c. B. Friedrich Chief Engineer Dr.-Ing. R. Fuchs Scientific staff 5 post-docs 28 scientific engineers (aiming for Dr.-degree) 25 student workers Administrative and technical staff 29 employees in accounting, secretary, library, analytical lab and mechanical/electrical/metallurgical workshops

4 Financing our work in % 26% Salaries state personell Building cost incl. auxilaries (state) Cash budget by RWTH Public funds BMBF 12% Public funds DFG 7% 4% 3% 14% 1% Public funds BMWi (AIF) Public funds EU Direct funds industry Total budget: 3,29 Mio

5 R&D Platforms -Metallurgy processes and residue utilization DC/AC EAF metallurgy Emission control in metallurgy Hydrometallurgy/chem.process technology Process Technology of Metals Vacuum- and Inertgas-Metallurgy Production of complex alloys Pyrometallurgical and physical refining Experimental simulation of processes Special Areas Aqueous and molten salt electrolysis Powder Synthesis (USP and HDH) Thermochemical modelling and process simulation

6 TBRC/TRDF - Part of IME Recycl. Research Centre Exhaustion Burner Feeder Pouring nozzle Injection lance Burner capacity: 0.5 MW Burner gas mixture: Natural gas with air, AirOx or O2 Oxygen injection: with lance up to 100Nm³/h Melting capacity: up to 0.6 m³

7 Actual -Projects (selection) Transforming Cu- resp. Pb-slags into products Properties and mechanisms of salts in Al- Interaction of carbon and organics with molten Aluminium Recovery of light and heavy metals from waste incineration ashes after optimized mechanical benefication/sorting SiAl production via carbothermic reduction of waste Al 2 O 3 und SiO 2 Reactivation of dumped red-mud through further Al-extraction, pig iron reduction and production of metallurgical minerals Recovery of rare-metals from spent Li-based batteries and WEEEscrap through (microwave)-pyrolysis & autothermic TBRC treatment Vacuum distillation of Te, In und Se from scrapped solar-cells via microwave heating under vacuum transforming magnet manufacturing residues into RE-chemicals from lead refining slags to Sb-flame retardant and Bi-alloys

8 Working Group Vacuum and Inert-Gas-Metallurgy lab and demo scale VIM, (P)ESR, VAR, (EB) master alloy manufacturing (including aluminothermic reduction) small scale ingot production (up to 200 kg batch size )

9 Special Alloy Production Route ATR 10/100 VIM 100 (P)ESR 100 VAR 200 EB 20

10 Actual Vacuum-Metallurgy Projects (selection) Remelting of Titanium(-alloys) under a Ca-CaF2 based active slag Reduction of the oxygen content Removal of non-metallic inclusions Potential bulk fluoridation of the metal Impact of remelting parameters on macro-/microstructure & removal of non-metallic inclusions in Co-/Ni-base alloys and special steels Production of high nitrogen steels and alloys with high contents of refractory metals (e.g. Nb, Ta, W, Mo) Fundamental investigations on slag-metal interaction

11 Working Group Pure Metals Horizontal zone melting Fractional crystallization of alloy melts (static and with rotating devices) Vacuum degassing, distillation and condensation Gas purging and metal filtration

12 Working Group Modelling and Properties thermochemical modelling based on Factsage and following databases: SGTE, FACT, FSmisc, FSoxid, FSlite, FSsalt experimental validation of reaction kinetics thermo-physical properties of molten slags and metals (viscosity, conductivity, density, ) Generator N S Messsignal 1 5

13 Working Group Hydrometallurgy and Electrolysis aqueous and molten salt electrolysis fixed bed and reversal-current cells heap, agitation and pressure leaching

14 Working Group Nano powders Nano-TiO 2 via USP

15 Thank you for your attention! For further information please contact: IME Process Metallurgy and Metal RWTH Aachen University, Aachen, Germany IME Process Metallurgy and Metal, RWTH Aachen Prof. Dr.-Ing. Dr. h.c. Bernd Friedrich

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