Method for producing ultra fine particles

Details Method for producing ultra fine particles Method for producing ultra fine particles

1994-09-16

1996-09-17

Eley, Timothy V.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, B02C 2336

Patent

active

055560385

ABSTRACT:
A method for producing ultra fine particles is disclosed, wherein the method includes wet grinding particles with a media agitation mill, wherein ceramic particles having an average diameter of about 300 .mu.m or smaller are used as grinding media in the media agitation mill. Desirably, the media has an average particle diameter standard deviation of 15 or smaller, a sphericity of 1.07 or smaller, and a density of 6.0 g/cm.sup.3 or more.

REFERENCES:
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patent: 3337140 (1967-08-01), Wahl
patent: 3640476 (1972-02-01), Engels
patent: 3682399 (1972-08-01), Kaspar et al.
patent: 4332354 (1982-06-01), Monterey et al.
patent: 4430279 (1984-02-01), Hagio et al.
patent: 5065946 (1991-11-01), Nishida et al.
Patent Abstracts of Japan, vol. 16, No. 320 (C-0962), 14 Jul. 1992 for JP-A-4-92818.
Patent Abstracts of Japan, vol. 17, No. 591 (C-1125), 28 Oct. 1993 for JP-A-5-178620.

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