US005886235A  United States Patent  [19J  Bryant et al.  [11]  Patent Number:  5,886,235  [45]  Date of Patent:  *Mar. 23, 1999  [54]  METAL-LIGAND COMPLEX CATALYZED  PROCESSES  [75]  Inventors:  David Robert Bryant,  South  Charleston;  James Clair Nicholson,  St.  Albans;  John Robert Briggs,  Charleston;  Diane Lee Packett,  South  Charleston;  John Michael Maher,  Charleston, all of W. Va.  [73]  Assignee:  Union Carbide Chemicals  &  Plastics  Technology Corporation.,  Danbury,  Conn.  [ *]  Notice:  The term of this patent shall not extend  beyond the expiration date of Pat. Nos.  5,786,517 and 5,744,649.  [21]  Appl. No.:  818,780  [22]  Filed:  Mar. 11, 1997  [63]  Continuation-in-part of Ser. No. 753,503, Nov. 26, 1996,  Pat. No. 5,786,517.  Related U.S. Application Data  [30]  Foreign Application Priority Data  [51]  Int. Cl. 6  .....................................................  C07C 45/50  May 12, 1996 [WO]  Jun. 12, 1996  [AR]  Jun. 12, 1996 [MY]  Jun. 12, 1996  [ZA]  Dec. 17, 1996  [VE]  Jan. 13, 1997  [TH]  WIPO ..................... PCT/US96/19400  Argentina ................................. 105531  Malaysia ............................... 96-05117  South Africa ......................... 96-10309  Venezuela ............................. 96-02190  Thailand .................................. 035196  [52]  U.S. Cl.  .............................................  568/454;  568/451  [58]  Field of Search  ...................................... 568/451, 454  [56]  References Cited  U.S. PATENT DOCUMENTS  3,555,098  4,258,215  5,288,918  5,498,801  1/1971 Olivier et al. .......................... 260/604  3/1981 Dawes ..................................... 568/454  2/1994 Maher et al. ........................... 568/454  3/1996 Chaudhari et al. ..................... 568/454  FOREIGN PATENT DOCUMENTS  OTHER PUBLICATIONS  9616923  6/1996  WIPO .  Search Report (PCT Search Report) Mar. 14, 1997.  Primary Examiner----Shailendra  Kumar  Assistant Examiner----Sreeni  Padmanabhan  Attorney, Agent, or  Firm-Gerald L. Coon  This invention relates to a process for separating one or more  phosphorus acidic compounds from a reaction product fluid  containing said one or more phosphorus acidic compounds,  a metal-organophosphorus ligand complex catalyst and  optionally free organophosphorus ligand which process  comprises treating said reaction product fluid with water  sufficient to remove at least some amount of said one or  more phosphorus acidic compounds from said reaction  product fluid.  [57]  ABSTRACT  20 Claims, 1 Drawing Sheet 