2012|13 Annual Report Fraunhofer IGB

103 Dr. Iris Trick Bioleaching Phone +49 711 970-4217 iris.trick@igb.fraunhofer.de Dr. Thomas Schiestel Adsorption, membranes Phone +49 711 970-4164 thomas.schiestel@igb.fraunhofer.de Alexander Karos M.Sc. Electrophysical processes Phone +49 711 970-3564 alexander.karos@igb.fraunhofer.de References [1] Bach, M.; Niedergall, K.; Schiestel, T.; Tovar, G. (2013) Nano- structured composite adsorber membranes for the reduction of trace substances in water: The example of bisphenol A, Industrial & Engineering Chemistry Research (submitted) [2] Niedergall, K.; Hänel, C. et al. (2012) Recovery of metal ions from high diluted solutions or complex mixtures by membrane processes, EUROMEMBRANE, London, United Kingdom Funding We would like to thank the Fraunhofer-Gesellschaft for funding the project “Molecular Sorting for Resource Efﬁciency” within the framework of the “Markets Beyond Tomorrow” research program. Project partners and further information www.molecular-sorting.fraunhofer.de –2.0 Currentdensity[mA/cm2 ] Potential [V] 2.0 1.0 0.0 –1.0 –4.0 –3.0 –2.0 –1.0 0.0 1.0 2.0 3.0 [N1114][N(Tf)2] vs. Ag/Ag+ Water vs. SHE, pH 7 12 10 Free-ﬂow electrophoresis (FFE) plant. 11 Separation of various metal ions by means of FFE, ﬁgures refer to the initial amount. 12 Cyclic voltammogram – Comparison of the electrochemical window of an ionic liquid with that of water. Outlook The aim of recycling substances is to provide an efﬁcient sup- ply of secondary resources in the same quality as the original raw material. For industrial implementation, it is not sufﬁ- cient just to make available the separate stages of the process. Rather, what is required is a well-thought-out process chain for an integrated metal-recycling concept. These concepts are transferred into pilot scale, tested and validated in practice and veriﬁed with investigations into environmental compatibil- ity by means of life-cycle assessments. Contacts

2012|13 Annual Report Fraunhofer IGB

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