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AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsJohn Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher
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This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated 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 solvents and one or more nonpolar solvents by phase separation wherein (i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.5, and (iii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more reaction byproducts is expressed by a partition coefficient ratio Ef3 which is a value greater than about 2.5.
A process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated 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 solvents and one or more nonpolar solvents, wherein said process comprises (1) supplying said reaction product fluid from a reaction zone to a separation zone, (2) mixing said reaction product fluid in said separation zone 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 and said one or more polar solvents and a nonpolar phase comprising said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products and said one or more nonpolar solvents, (3) removing from said separation zone an amount of said one or more organophosphorus ligand degradation products, said one or more reaction byproducts and said one or more products essentially equal to their rate of formation in said reaction product fluid in said reaction zone whereby the amount of said one or more organophosphorus ligand degradation products, said one or more reaction byproducts and said one or more products in said reaction product fluid in said reaction zone is maintained at a predetermined level, (4) supplying from said separation zone to said reaction zone and/or said separation zone one or more recycle streams comprising said one or more unreacted reactants, said metal-organophosphorus ligand complex catalyst, said optionally free organophosphorus ligand and said one or more polar solvents, (5) recovering said one or more organophosphorus ligand degradation products, said one or more reaction byproducts and said one or more products from said one or more nonpolar solvents, and (6) supplying from said separation zone to said reaction zone and/or said separation zone one or more recycle streams comprising said one or more nonpolar solvents;
Dependencies are inferred from the claim text.