Title:
CATALYST, METHOD FOR PREPARING CATALYST, AND METHOD FOR PRODUCING UNSATURATED CARBOXYLIC ACID AND/OR UNSATURATED CARBOXYLIC ACID ESTER
Document Type and Number:
WIPO Patent Application WO/2020/184616
Kind Code:
A1
Abstract:
The present invention provides a catalyst in which an alkali metal element and at least one first metal element selected from among boron, magnesium, zirconium and hafnium are supported by a silanol group-containing carrier, wherein the average particle diameter of a compound of the first metal element is 0.4-50 nm, and expression (1) is satisfied when the molar ratio of the alkali metal element to the first metal element is X, the BET specific surface area of the catalyst is Y (m2/g), and the number of silanol groups per unit area of the catalyst (per nm2) is Z. Expression (1): 0.9×10-21 (g/unit)≤X/(Y×Z)<10.8×10-21 (g/unit).
Inventors:
HASEGAWA TOSHIO (JP)
KAWABE NORIMICHI (JP)
HAYASHI AKIO (JP)
NINOMIYA WATARU (JP)
FUJISUE MASAYA (JP)
KAWABE NORIMICHI (JP)
HAYASHI AKIO (JP)
NINOMIYA WATARU (JP)
FUJISUE MASAYA (JP)
Application Number:
PCT/JP2020/010570
Publication Date:
September 17, 2020
Filing Date:
March 11, 2020
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B01J23/04; B01J35/10; B01J37/02; C07B61/00; C07C51/09; C07C57/05; C07C67/30; C07C69/54
Foreign References:
| JP2015205842A | 2015-11-19 | |||
| JP2011224536A | 2011-11-10 | |||
| JP2009126846A | 2009-06-11 | |||
| JP2002511336A | 2002-04-16 | |||
| JPH10511034A | 1998-10-27 |
Other References:
See also references of EP 3939698A4
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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