Liquid filtration method

Details Liquid filtration method Liquid filtration method

1980-03-14

1983-01-18

Sever, Frank

Liquid purification or separation

Processes

Separating

210503, 428402, B01D 3702

Patent

active

043691161

ABSTRACT:
A method is provided which comprises, adding to the liquid a filtering aid effective amount of a filter aid material consisting essentially of particulate expanded polymer formed by comminuting polymeric foam to eliminate substantially all closed cells of said foam and grading to a desired average particle size range smaller than 100 mesh and larger than about 700 mesh, and filtering the resulting liquid mixture through a filter medium.

REFERENCES:
patent: 2770241 (1956-11-01), Winkler
patent: 2961710 (1960-11-01), Stark
patent: 3429655 (1969-02-01), Case
patent: 3538020 (1970-11-01), Heskett et al.
patent: 3557955 (1971-01-01), Hirs et al.
patent: 3630820 (1971-12-01), Leach
patent: 3658184 (1972-04-01), Davis et al.
patent: 3905910 (1975-09-01), Coombs et al.
patent: 4028255 (1977-06-01), Bolto et al.
patent: 4145284 (1979-03-01), Neu

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