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Journal Article

Toward Water-Based Recycling Techniques: Methodologies for Homogeneous Catalyst Recycling in Liquid/Liquid Multiphase Media and Their Implementation in Continuous Processes

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Rösler,  Thorsten
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Faßbach,  Thiemo Alexander
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Schrimpf,  Marco
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Vorholt,  Andreas J.
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Leitner,  Walter
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Citation

Rösler, T., Faßbach, T. A., Schrimpf, M., Vorholt, A. J., & Leitner, W. (2019). Toward Water-Based Recycling Techniques: Methodologies for Homogeneous Catalyst Recycling in Liquid/Liquid Multiphase Media and Their Implementation in Continuous Processes. SI. doi:10.1021/acs.iecr.8b04295.


Cite as: https://hdl.handle.net/21.11116/0000-0006-5DC9-0
Abstract
Biphasic water-based solvent systems offer the opportunity of efficient recycling of homogeneous catalysts. Water separates well from most organic solvents; therefore, water-soluble catalysts can be immobilized in this phase. Furthermore, water can substitute hazardous and environmentally unfriendly organic solvents in these systems. Within industry only the Ruhrchemie/Rhosne-Poulenc process uses plain water to immobilize the homogeneous catalyst for the hydroformylation of propene. Yet for more hydrophobic substrates, no water-based system has been commercialized. This review will summarize recent developments in the field of water-based recycling strategies. Topics in this field are the intensification of the mixing process, the use of thermomorphic solvent systems, and the employment of several additives, like alcohols and surfactants. Continuously operated processes for these recycling strategies will be presented and discussed.