Systematic Comparison of Homogeneous Catalyst Recycling Strategies: Organic Solvent Nanofiltration vs. Liquid‐Liquid‐Multiphase

This study presents a systematic comparison of two recycling strategies for molecular catalyst-multiphasic catalyst recycling and organic solvent nanofiltration (OSN)-within a unified reaction system. Molecular catalyzed reactions are vital in chemical production, necessitating efficient recycling of costly catalyst metals. To facilitate a fair comparison, a versatile model reaction system was developed that allows for both monophasic and multiphasic configurations while preserving the integrity of the central hydroformylation process, converting 1-hexene and CO/H₂ syngas to heptanal in both cases.