Union Carbide Corporation

Union Carbide Chemicals & Plastics Technology Corporation

Michael A Blessing

Donald Leroy Bunning

Gregory J Dembowski

Gregory K Finnell

An improved rhodium catalyzed liquid recycle hydroformylation process, the improvement which comprises selectively separating and recovering phosphorus ligand from the vaporized aldehyde product stream obtained from volatilizing and separating the aldehyde product from the catalyst containing reaction product solution of the hydroformylation process.

Process for recovery of phosphorus ligand from vaporized aldehyde

In a primary process for hydroformylating olefins to form aldehydes in which a liquid or gas recycle step is conducted and a gaseous effluent is vented, the improvement which comprises employing the effluent as a reactant feed for a decoupled secondary liquid-or gas recycle hydroformylation process conducted conjointly therewith.

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Sissonville, WV, United States of America

Michael A Blessing