Process for deagglomerating and classifying phosphors

Details Process for deagglomerating and classifying phosphors Process for deagglomerating and classifying phosphors

1981-06-04

1987-02-17

Eley, Timothy V.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241 24, C22B 300

Patent

active

046433635

ABSTRACT:
Fired phosphor powder is deagglomerated by introducing a slurry thereof to the bottom of a vibratory mill while water is added to the top of the mill. This establishes a vertical gradient in the phosphor concentration in the slurry, the bottom being thicker than the top. The fine phosphor particles move out faster through an outlet at the top, while the coarse particles receive longer milling time.

REFERENCES:
patent: 1587623 (1926-06-01), Zuckerman
patent: 3165269 (1965-01-01), Blackburn et al.
patent: 3387793 (1968-06-01), Burner
patent: 3599879 (1971-08-01), Clark
patent: 4269808 (1981-05-01), Kawabata

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