Title:
PRODUCTION METHOD FOR MODIFIED ALUMINOSILICATE, PRODUCTION METHOD FOR CATALYST INCLUDING MODIFIED ALUMINOSILICATE, PRODUCTION METHOD FOR AROMATIC POLYHYDROXIDE COMPOUND USING SAID CATALYST, AND MODIFIED ALUMINOSILICATE
Document Type and Number:
WIPO Patent Application WO/2023/204296
Kind Code:
A1
Abstract:
Provided are: a production method for a modified aluminosilicate that makes it possible to highly selectively produce a hydroquinone via a reaction between a phenol and hydrogen peroxide, with industrially advantageous conditions; a production method for a catalyst that is for producing an aromatic dihydroxide compound and that includes the modified aluminosilicate; a production method for an aromatic dihydroxide compound that uses the catalyst; and a modified aluminosilicate. A production method for an aluminosilicate according to the present invention comprises: a first step for preparing a liquid obtained by contact between a metal compound (AL) containing aluminum and oxygen and silica in the form of a sol containing water, and obtaining an aluminosilicate in which the molar ratio (HMR) between water and silica is in a specific range; a second step for treating, with acid, the aluminosilicate obtained in the first step; a third step for performing primary firing with respect to the treated product obtained in the second step; and a fourth step for bringing into contact the primary fired product obtained in the third step and a liquid containing one or more elements selected from the group consisting of group 4 elements and group 5 elements of the periodic table, and thereafter performing drying and secondary firing. The metal compound (AL) is preferably a zeolite. The first step preferably includes a step for removing the water.
Inventors:
IMOTO ITSUKI (JP)
NAKANISHI KEITA (JP)
AKIYAMA SATOSHI (JP)
HORIUCHI NOBUHIKO (JP)
SAITO SUSUMU (JP)
KUBOTA YOSHIHIRO (JP)
INAGAKI SATOSHI (JP)
NAKANISHI KEITA (JP)
AKIYAMA SATOSHI (JP)
HORIUCHI NOBUHIKO (JP)
SAITO SUSUMU (JP)
KUBOTA YOSHIHIRO (JP)
INAGAKI SATOSHI (JP)
Application Number:
PCT/JP2023/015884
Publication Date:
October 26, 2023
Filing Date:
April 21, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C01B39/46; B01J29/89; B01J37/04; B01J37/08; C01B39/06; C01B39/48; C07B61/00; C07C37/00; C07C37/60; C07C39/08; C07C39/10
Domestic Patent References:
| WO2019225549A1 | 2019-11-28 |
Foreign References:
| JP2008050186A | 2008-03-06 | |||
| JP2019202300A | 2019-11-28 | |||
| CN102274749A | 2011-12-14 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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