US005744649A  United States  Patent  [19J  Bryant et al.  [111  Patent Number:  5,744,649  [45]  Date of Patent:  *Apr. 28, 1998  [54)  HYDROFORMYLATION  PROCESSES  [75)  Inventors:  David Robert Bryant.  South  Charleston;  James Clair Nicholson,  South Charleston,  both 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. No.  5,741.944.  [21)  Appl. No.:  753,504  [22)  Filed:  Nov. 26, 1996  [60]  Provisional application  No.  60/008,289,  Dec.  6, 1995, pro› visional application  No. (J()/008,763,  Dec. 6, 1995, provi› sional application  No. 60/008,284,  Dec. 6, 1995, and  pro› visional application  No.  (J()/008,286, Dec.  6, 1995.  [51)  Int.  CI.  6  .....................................................  C07C 45/50  [52)  U.S.  CI  ..............................................  568/454;  568/451  [58]  Field of Search  ......................................  568/451. 454  Related U.S. Application  Data  [56)  References Cited  U.S.  PXI’ENT DOCUMENTS  [57)  ABSTRACT  20 Claims, 1 Drawing  Sheet  This invention relates  to a process for  separating one  or more  phosphorus acidic  compounds from  a  hydroformylation  reaction product  fluid containing  said one or more  phospho› rus acidic  compounds,  a  metal-organophosphite  ligand com› plex catalyst and  optionally free  organophosphite  ligand  which process  comprises treating  said  hydroformylation  reaction product  fluid with water  sufficient to remove  at least  some amount  of said one or  more phosphorus  acidic com› pounds from said  hydroformylation  reaction product  fluid.  Primary  Examiner-Gary  Geist  Assistant  Examiner-Sreeni  Padmanabhan  Attome)> Agent,  or  Finn-Gerald  L.  Coon  3,555,098  4,258,215  4,567,306  5,288,918  5,498,801  1/1971 Olivier  et  al ..  3/1981 Dawes .  1/1986 Dennis  et  al.  ..........................  5681455  211994 Malter et  al  ............................  5681454  3/1996  Chaudhari  et  al  ......................  5681454 