Patent Number: 6,294,700

Title: Separation processes

Abstract: This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more polar reaction solvents and one or more nonpolar reaction solvents, wherein said process comprises (1) subjecting said reaction product fluid to fractional countercurrent extraction with at least two immiscible extraction solvents, said at least two immiscible extraction solvents comprising at least one polar extraction solvent and at least one nonpolar extraction solvent, to obtain a polar phase comprising said metal-organophosphorus ligand complex catalyst, said optionally free organophosphorus ligand, said one or more polar reaction solvents and said at least one polar extraction solvent and a nonpolar phase comprising said one or more products, said one or more nonpolar reaction solvents and said at least one nonpolar extraction solvent, and (2) recovering said nonpolar phase from said polar phase; wherein (i) the organophosphorus ligand has a partition coefficient Kp1 defined herein between the polar phase and the nonpolar phase of greater than about 5, and (ii) the one or more products have a partition coefficient Kp2 defined herein between the polar phase and the nonpolar phase of less than about 2.0.

Inventors: Kanel; Jeffrey Scott (Hurricane, WV), Argyropoulos; John Nicholas (Scott Depot, WV), Phillips; Ailene Gardner (Charleston, WV), Roesch; Brian Michael (Cross Lanes, WV), Briggs; John Robert (Charleston, WV), Lee; Max Min (Charleston, WV), Maher; John Michael (Charleston, WV), Bryant; David Robert (So. Charleston, WV)

Assignee: Union Carbide Chemicals & Plastics Technology Corporation

International Classification: C07B 63/00 (20060101); C07C 45/50 (20060101); C07C 45/00 (20060101); C07C 045/50 ()

Expiration Date: 09/25/2018