Title:
METHOD FOR RECOVERING RHODIUM COMPLEX CATALYST
Document Type and Number:
WIPO Patent Application WO/2005/049202
Kind Code:
A1
Abstract:
A method for recovering a complex catalyst remaining in a reactor for a hydroformylation reaction of an olefin in the presence of a rhodium-trivalent organic phosphorus complex catalyst dissolved in a solvent for the reaction after a liquid containing the complex catalyst is withdrawn from the reactor, characterized in that it comprises washing the inside of the reactor with a liquid not deactivating the catalyst, to thereby dissolve the residual complex catalyst in the liquid used for the washing, followed by recovering the liquid. The method can be used, when a liquid is withdrawn from a reactor for a hydroformylation reaction to carry out a periodical inspection or the like, for recovering a complex catalyst remaining in the reactor with good efficiency.
Inventors:
FUJITA YUICHI
KAWASAKI HIROKI
KAWASAKI HIROKI
Application Number:
PCT/JP2003/014842
Publication Date:
June 02, 2005
Filing Date:
November 20, 2003
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B01J31/22; (IPC1-7): B01J31/22
Foreign References:
| JPH03218333A | 1991-09-25 | |||
| JPS6322046A | 1988-01-29 |
Attorney, Agent or Firm:
Oguri, Shohei (28th Floor ARK Mori Building, 12-32, Akasaka 1-chom, Minato-ku Tokyo, JP)
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