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

ABSTRACT 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/H 2 syngas to heptanal in both cases.