Patent Number: 6,252,123

Title: Membrane separation process for metal complex catalysts

Abstract: This invention relates to a process for the separation of a metal complex catalyst and any free ligand which may be present, from a homogeneous organic synthesis reaction mixture using sub-nanoporous, chemically stable membranes having discrete pores which allow organic products and by-products to pass through the membrane as permeate while retaining substantially all of the metal complex catalyst and free ligand, if any, as retentate.

Inventors: Miller; Jay Fingeret (Charleston, WV), Rodberg; Joan Ayer (Charleston, WV), Roesch; Brian Michael (Cross Lanes, WV), Keller, II; George Ernest (South Charleston, WV), Curry; Lisa Evans (Hurricane, WV), Bryan; Paul Frank (Mt. Vernon, IN), Davis; John Edward (Charleston, WV), Hatfield; James Charles (St. Albans, WV)

Assignee: Union Carbide Chemicals & Plastics Technology Corporation

International Classification: B01D 71/00 (20060101); B01D 61/02 (20060101); B01D 61/14 (20060101); B01D 71/02 (20060101); B01J 31/40 (20060101); B01J 37/00 (20060101); C07C 047/058 (); C07C 047/09 (); C07C 045/50 ()

Expiration Date: 06/26/2018