Title:
(メタ)アクリル酸製造用触媒の製造方法および(メタ)アクリル酸の製造方法
Document Type and Number:
Japanese Patent JP6372575
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a method for producing a catalyst that can reduce uneven quality in a catalyst molded body of a catalyst for (meth)acrylic acid production. Provided is a method for producing a catalyst for (meth)acrylic acid production, the method including: (1) a step of mixing a contactant of a catalyst component-containing catalyst precursor, a liquid and a binder so as to produce a mixture; (2) a step of molding the mixture so as to produce a molded body; and (3) a step of heat treating the molded body. In the period after producing the contactant in step (1) and before heat treating the molded body in step (3), at least one of the contactant, the mixture and the molded body is held for a total of 2 hours or more at a temperature of 10°C or higher, and if the liquid content in the mixture, which is calculated from the charged quantities in step (1), is denoted by α% and the liquid content in the mixture immediately before carrying out the molding in step (2) is denoted by β%, the rate of change in liquid content, as calculated using formula (I), is -10% to 10% inclusive. Formula (I): rate of change in liquid content (%) = (α-β)/α×100
Inventors:
Takuro Watanabe
Miharu Sugiyama
Kenichi Miyaki
Yuichi Tagawa
Akio Takeda
Hiroki Kato
Yuta Sato
Tomomi Hino
Takashi Toyota
Shingo Tanaka
Miharu Sugiyama
Kenichi Miyaki
Yuichi Tagawa
Akio Takeda
Hiroki Kato
Yuta Sato
Tomomi Hino
Takashi Toyota
Shingo Tanaka
Application Number:
JP2016570144A
Publication Date:
August 15, 2018
Filing Date:
November 10, 2016
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B01J27/199; B01J37/00; B01J37/04; C07C51/235; C07C57/055
Domestic Patent References:
| JP2011224482A | ||||
| JP2009213970A | ||||
| JP2010264358A | ||||
| JP2003201261A | ||||
| JP2003001113A |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata