The focus of the collaborative project ESIMEM was the further development of solvent-stable nanofiltration (OSN) to a part of the "standard toolbox" within the conceptual process design. The project was realized in cooperation with RWTH Aachen, TU Berlin, as well as the Helmholtz-Zentrum Geestacht, Fraunhofer IKTS, FA. Junghans, Merck and Evonik from 2015-2018 on Laboratory of Fluid Separations at TU Dortmund and was funded by the Federal Ministry of Economics and Energy (BMWi) through Prof. Dr.-Ing. Andrzej Górak.