Recycling and Separation of Homogeneous Catalyst from Aqueous Multicomponent Mixture by Organic Solvent Nanofiltration

Membranes, vol. 11, pp. 423

Abstract

Organic solvent nanofiltration (OSN) has evolved to an established recycling method for homogeneous catalysts. However, commercial availability has not circumvented the need for classification and the scoping of possible applications for specific solvent mixtures. Therefore, Evonik’s DuraMem® 300 was assessed for the recycling of magnesium triflate at two transmembrane pressures from a mixture of ethanol, ethyl acetate and water. Catalyst retention up to 98% and permeability of up to 4.44·10−1∙L∙bar−1∙m−2∙h−1 were possible when less than 25% ethyl acetate was in the mixture. The retention of some of the components in the ternary mixture was observed while others were enriched, making the membrane also suitable for fractioning thereof.

Authors 5

1. J.-Kilian Schnoor corresponding Aachen Institut für Technische und Makromolekulare Chemie

   RWTH Aachen University

   Affiliation as printed

   Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany

2. Jens Bettmer Aachen Institut für Technische und Makromolekulare Chemie Chair of Chemical Process Engineering

   RWTH Aachen University

   Affiliation as printed

   Chair of Chemical Process Engineering, Aachener Verfahrenstechnik, RWTH Aachen University, Forckenbeckstrasse 51, 52074 Aachen, Germany

   Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany

3. Johannes Kamp Aachen Chair of Chemical Process Engineering

   RWTH Aachen University

   Affiliation as printed

   Chair of Chemical Process Engineering, Aachener Verfahrenstechnik, RWTH Aachen University, Forckenbeckstrasse 51, 52074 Aachen, Germany

4. Matthias Weßling Aachen DWI - Leibniz Institute for Interactive Materials Chair of Chemical Process Engineering

   RWTH Aachen University · DWI – Leibniz Institute for Interactive Materials

   Affiliation as printed

   Chair of Chemical Process Engineering, Aachener Verfahrenstechnik, RWTH Aachen University, Forckenbeckstrasse 51, 52074 Aachen, Germany

   DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany

5. Marcel Liauw corresponding Aachen Institut für Technische und Makromolekulare Chemie

   RWTH Aachen University

   Affiliation as printed

   Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany