Process for removing fine particles from a powder

Details Process for removing fine particles from a powder Process for removing fine particles from a powder

1990-04-09

1991-11-19

Huppert, Michael S.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

B03B 104

Patent

active

050663879

ABSTRACT:
A process for removing finer than uniform size particles from a powder in a container including the steps of suspending the finer particles in a liquid rinse containing a charged compound such as a quanternary ammonium compound to reduce the static attraction of the finer particles from being bound to larger particles allowing the large particles to settle and decanting the suspensed finer particles in the liquid.

REFERENCES:
patent: 1029579 (1912-06-01), Schwerin
patent: 2999586 (1961-09-01), Keith
patent: 3630351 (1971-12-01), Uhinck
patent: 3757938 (1973-09-01), Wachtel
patent: 3811848 (1974-05-01), Johnson
patent: 3932596 (1976-01-01), Rohatgi
patent: 4750992 (1988-06-01), Romine
patent: 4767540 (1988-08-01), Spitzer et al.

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