Title:
金平糖状アルミナ－シリカ複合微粒子分散液の製造方法
Document Type and Number:
Japanese Patent JP7470079
Kind Code:
B2
Abstract:
To provide a manufacturing method of a confetti-like alumina-silica composite sol, capable of manufacturing a confetti-like alumina-silica composite sol in which alumina-silica composite fine particles of a special shape are dispersed with improved efficiency.SOLUTION: A manufacturing method of a confetti-like alumina-silica composite sol includes: continuously or intermittently adding sodium aluminate to an alkaline silica sol where silica microparticles are dispersed in an aqueous solvent in a temperature range of 80°C or over and under 100°C at a rate of 0.02 pt.mass or over and 1 pt.mass or under of sodium aluminate to 100 pts.mass of the silica microparticles, followed by aging, to prepare an alumina-silica composite fine particle dispersion involving alumina-silica composite fine particles; then, adding an alkali metal silicate to the alumina-silica composite fine particle dispersion, followed by aging and further continuously or intermittently adding a silicate liquid for a reaction, to obtain confetti-like alumina-silica composite fine particles.SELECTED DRAWING: None
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Inventors:
Yoshinori Wakamiya
Kazuhiro Nakayama
Ryo Muraguchi
Kazuhiro Nakayama
Ryo Muraguchi
Application Number:
JP2021061347A
Publication Date:
April 17, 2024
Filing Date:
March 31, 2021
Export Citation:
Assignee:
JGC Catalysts Co., Ltd.
International Classes:
C01B33/12; C01B33/141; C01B33/146
Domestic Patent References:
| JP2018123046A | ||||
| JP2013133255A | ||||
| JP2008169102A | ||||
| JP2005145812A | ||||
| JP2009126741A | ||||
| JP2012140286A |
Attorney, Agent or Firm:
Patent Attorney Corporation Kinoshita Intellectual Property Office