Title:
METHOD FOR PRODUCING KETENE DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2017/125964
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for producing a ketene derivative wherein the consumption of a phosphorus compound can be reduced and the discharge of the phosphorus compound into the environment can be also reduced.
A method for producing a ketene derivative, said method comprising step (i) for subjecting acetic acid to pyrolysis in the presence of a phosphorus-containing catalyst in a reactor to give a ketene-containing pyrolysis gas, step (ii) for cooling the pyrolysis gas and thus separating the same into a ketene-containing gaseous component and a liquid condensate containing a phosphorus compound (a), and step (iii) for reacting the ketene with another organic compound to give a ketene derivative, wherein the aforesaid step (i) comprises conducting the pyrolysis while supplying the liquid condensate containing the phosphorus compound (a) or a liquid prepared by concentrating the same into the reactor.
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Inventors:
SASAKI YUKIHIRO
OKUYAMA NAOTO
TSUGITA NOBUHIRO
OKUYAMA NAOTO
TSUGITA NOBUHIRO
Application Number:
PCT/JP2016/000267
Publication Date:
July 27, 2017
Filing Date:
January 20, 2016
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C07C51/56; C07C53/12; B01J31/02; C07C45/89; C07C49/92
Foreign References:
| JP2002515470A | 2002-05-28 | |||
| JP2002284736A | 2002-10-03 | |||
| JP2001513522A | 2001-09-04 | |||
| JPS6351348A | 1988-03-04 | |||
| US2856426A | 1958-10-14 | |||
| US2202046A | 1940-05-28 | |||
| US4455439A | 1984-06-19 | |||
| JP5390770B2 | 2014-01-15 | |||
| JP2001513522A | 2001-09-04 | |||
| JPH0680023B2 | 1994-10-12 | |||
| JP2014527905A | 2014-10-23 | |||
| JPS57197240A | 1982-12-03 |
Other References:
See also references of EP 3406588A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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