Spherical alumina particles and production process thereof

Details Spherical alumina particles and production process thereof Spherical alumina particles and production process thereof

2006-05-30

2006-05-30

Green, Anthony J. (Department: 1755)

Compositions: ceramic

Ceramic compositions

Refractory

C423S625000, C501S153000

Reexamination Certificate

active

07053018

ABSTRACT:
A process for producing roundish alumina particles includes the steps of granulating a composition containing at least one pulverized product of electrofused alumina and sintered alumina having a mean particle size of 5 to 35 μm and at least one species selected from the group consisting of a halogen compound, a boron compound and an alumina hydrate to obtain a granulated product, heating the granulated product at 1,000 to 1,600° C., and crushing the heated product.

REFERENCES:
patent: 4193768 (1980-03-01), Hasegawa et al.
patent: 4315839 (1982-02-01), Bouge et al.
patent: 4382879 (1983-05-01), Funabashi et al.
patent: 5340781 (1994-08-01), Oda et al.
patent: 0 499 585 (1992-08-01), None
patent: 0 499 585 (1992-08-01), None
patent: 0 680 929 (1995-11-01), None
patent: 0 933 397 (1999-08-01), None
patent: 05-294613 (1993-11-01), None
International Search Report for PCT/JP02/05156 dated Aug. 21, 2002.

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