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Title:
METHOD FOR PRODUCING ALDEHYDE AND METHOD FOR PRODUCING ALCOHOL
Document Type and Number:
WIPO Patent Application WO/2019/098242
Kind Code:
A1
Abstract:
The present invention pertains to a method for producing aldehyde by a hydroformylation reaction in which an olefin is reacted with hydrogen and carbon monoxide in the presence of a Group VIII-X metal-phosphine based complex catalyst, the method comprising: (1) a step in which a reaction solution containing an accumulation of high-boiling point by-products is extracted from a reaction solution, and the extracted reaction solution is brought into contact with an oxygen-containing gas and oxidized; and (2) a step in which, after step (1), a poor solvent and hydrogen are mixed in the reaction solution, after which a Group VIII-X metal-phosphine based complex catalyst is crystallized, and the crystallized complex catalyst is recovered from the reaction solution.

Inventors:
SATOU TAKASHI (JP)
TANAKA YOSHIYUKI (JP)
Application Number:
PCT/JP2018/042160
Publication Date:
May 23, 2019
Filing Date:
November 14, 2018
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07C45/50; C07C29/16; C07C31/12; C07C47/02; C07B61/00
Foreign References:
JP2004534044A2004-11-11
JP2004526570A2004-09-02
JPS57122948A1982-07-31
JPS5976034A1984-04-28
JPS63264433A1988-11-01
JPH0994461A1997-04-08
JPH10507747A1998-07-28
JPS57122948A1982-07-31
JP2006151826A2006-06-15
JPS5772995A1982-05-07
JPS5787845A1982-06-01
JP2017219776A2017-12-14
Other References:
See also references of EP 3712126A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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