Alumina particles, production process thereof, composition...

Details Alumina particles, production process thereof, composition... Alumina particles, production process thereof, composition...

2006-06-27

2006-06-27

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S135000

Reexamination Certificate

active

07067105

ABSTRACT:
A process for producing alumina particles, comprising vaporizing aluminum chloride to form an aluminum chloride vaporized gas, which optionally contains an inert gas, and oxidizing the vaporized aluminum chloride with an oxidizing gas to produce alumina particles, wherein the aluminum chloride vaporized gas and the oxidizing gas are introduced into a reactor each at an ejecting flow velocity of about 10 m/sec or more, the ratio of the flow velocity of oxidizing gas to the flow velocity of the aluminum chloride vaporized gas is approximately from 0.2 to less than 10, and the amount of oxidizing gas is about 1 or more times the amount of oxidizing gas necessary for stoichiometrically oxidizing aluminum chloride.

REFERENCES:
patent: 3663283 (1972-05-01), Hebert et al.
patent: 5061474 (1991-10-01), Pauli et al.
patent: 5424258 (1995-06-01), Mangold et al.
patent: 5527423 (1996-06-01), Neville et al.
patent: 1 229 042 (1971-04-01), None
patent: 47-21212 (1972-06-01), None
patent: 57-145026 (1982-09-01), None
patent: 4-193712 (1992-07-01), None
patent: 5-53722 (1993-08-01), None
patent: 8-197414 (1996-08-01), None
patent: 11-228132 (1999-08-01), None
patent: 11-268911 (1999-10-01), None
patent: WO 99/35089 (1999-07-01), None
International Search Report for PCT/JP00/09231, Mar. 2001.

Affiliated with

Also associated with

Rating

Alumina particles, production process thereof, composition... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alumina particles, production process thereof, composition..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alumina particles, production process thereof, composition... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3695318