Method of producing hollow alumina particle

Details Method of producing hollow alumina particle Method of producing hollow alumina particle

2006-11-07

2006-11-07

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S111000, C204S157420

Reexamination Certificate

active

07132094

ABSTRACT:
A method of producing hollow alumina particles in which the grain size of hollow alumina particles is controlled and in which a high formation ratio of hollow particles is obtained while suppressing the formation of solid particles. The method includes irradiating supersonic waves to an aqueous solution containing aluminum nitrate or aluminum acetate, and a surfactant or an organic acid to generate micro-liquid droplets in an atomized state, introducing only minute liquid droplets having a certain grain size or less, which have been classified by an air stream, into a furnace and burning them in air.

REFERENCES:
patent: 1871793 (1932-08-01), Horsfield
patent: 6004525 (1999-12-01), Tani et al.
patent: 61-31315 (1986-02-01), None
patent: 7-267613 (1995-10-01), None
Japanese Abstract No. 2003089519, dated Mar. 28, 2003.
T. Kato, et al., “Preparation of Hollow Alumina Microspheres by Ultrasonic Spray Pyrolysis”, Journal of the Ceramic Society of Japan, 110[3], 2002, 146-148.
T. Ogihara, et al., “Synthesis and sintering of barium titanate fine powders by ultrasonic spray pyrolysis”, Advanced Powder Technology (1999), 10(1), 37-50 as CA.
C.H. Chao, et al., “Ultrasonic spray pyrolysis of a chelated precursor into spherical YBa2Cu3O7-x high temperature superconductor powders”, Journal of Materials Science (1995), 30(24), 6136-6144 as CA.

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