Title:
HYDROFORMYLATION PROCESS
Document Type and Number:
WIPO Patent Application WO2002096848
Kind Code:
A3
Abstract:
The present invention relates to a continuous hydroformylation process for the production of an aldehyde by hydroformylation of an olefin which comprises: providing a hydroformylation zone containing a charge of a liquid reaction medium having dissolved therein a rhodium hydroformylation catalyst comprising rhodium in combination with carbon monoxide and a ligand; supplying the olefin to the hydroformylation zone; maintaining temperature and pressure conditions in the hydroformylation zone conducive to hydroformylation of the olefin; recovering from the liquid hydroformylation medium a hydroformylation product comprising aldehyde; recovering from the hydroformylation zone a stream comprising the rhodium catalyst; contacting at least a portion of the stream with a solid acidic absorbent under process conditions which allow at least some of the rhodium to become bound to the absorbent; subjecting the rhodium bound to the absorbent, under process conditions which allow desorption of the metal, to a fluid stripping medium comprising hydrogen and solvent; recovering the rhodium hydride catalyst; and recycling the rhodium hydride catalyst to the hydroformylation zone.
Inventors:
BANISTER JAMES ANDREW (GB)
HARRISON GEORGE EDWIN (GB)
HARRISON GEORGE EDWIN (GB)
Application Number:
PCT/GB2002/002510
Publication Date:
February 20, 2003
Filing Date:
May 29, 2002
Export Citation:
Assignee:
DAVY PROCESS TECHN LTD (GB)
BANISTER JAMES ANDREW (GB)
HARRISON GEORGE EDWIN (GB)
BANISTER JAMES ANDREW (GB)
HARRISON GEORGE EDWIN (GB)
International Classes:
B01J31/40; B01J38/00; B01J31/24; B01J38/04; B01J38/12; C07B61/00; C07C45/50; C07C47/02; (IPC1-7): C07C45/50; C07C45/79
Domestic Patent References:
| WO1997003938A1 | 1997-02-06 |
Foreign References:
| US5208194A | 1993-05-04 | |||
| US4113754A | 1978-09-12 |
Other References:
See also references of EP 1390334A2
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