Title:
PROCESS FOR PRODUCING ALDEHYDE
Document Type and Number:
WIPO Patent Application WO/2002/072521
Kind Code:
A1
Abstract:
A process for producing an aldehyde which is a continuous hydroformylation process in which an olefinic compound, carbon monoxide, and hydrogen are continuously reacted in the presence of a rhodium-phosphite complex catalyst and at least one of the reaction products is continuously separated from the other(s), characterized in that water and at least part of the aldehyde product are discharged as a mixed vapor flow from that region of the process where the catalyst is present and at least part of the mixed vapor flow is supplied in the vapor state or as a condensate formed by cooling to a region outside the region where the catalyst is present to thereby reduce the water concentration in the region where the catalyst is present. Thus, the phosphite ligand is inhibited from decomposing in the olefin hydroformylation process.
Inventors:
UEDA AKIO (JP)
FUJITA YUUICHI (JP)
KAWASAKI HIROTAKA (JP)
FUJITA YUUICHI (JP)
KAWASAKI HIROTAKA (JP)
Application Number:
PCT/JP2001/008573
Publication Date:
September 19, 2002
Filing Date:
September 28, 2001
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
UEDA AKIO (JP)
FUJITA YUUICHI (JP)
KAWASAKI HIROTAKA (JP)
UEDA AKIO (JP)
FUJITA YUUICHI (JP)
KAWASAKI HIROTAKA (JP)
International Classes:
B01J31/18; C07C45/50; B01J23/46; (IPC1-7): C07C45/50; C07C45/83; C07C47/02
Foreign References:
| US5672766A | 1997-09-30 | |||
| US5648553A | 1997-07-15 | |||
| JPH0810624A | 1996-01-16 | |||
| JP2001316320A | 2001-11-13 | |||
| JP2001342164A | 2001-12-11 |
Attorney, Agent or Firm:
Oguri, Shohei (ARK Mori Building 12-3, Akasaka 1-chome Minato-ku Tokyo, JP)
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