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AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsJeffrey Scott Kanel, John Nicholas Argyropoulos, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher, David Robert Bryant
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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.
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;
A process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more polar reaction solvents and one or more nonpolar reaction solvents, wherein said process comprises (1) supplying said reaction product fluid from a reaction zone to a separation zone, (2) subjecting said reaction product fluid in said separation zone 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 by phase separation a polar phase comprising said one or more unreacted reactants, 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 organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, said one or more nonpolar reaction solvents and said at least one nonpolar extraction solvent, and (3) recovering said nonpolar phase from said polar phase;
Dependencies are inferred from the claim text.