Ceramic foam filter

Details Ceramic foam filter Ceramic foam filter

1981-01-22

1982-08-10

Therkorn, Ernest G.

Liquid purification or separation

Filter

Material

210510, 501 80, B01D 3920

Patent

active

043437044

ABSTRACT:
The present invention resides in an improved ceramic foam filter particulary useful for filtering molten metal. The composition of the ceramic foam material is as follows: 50 to 70% Al.sub.2 O.sub.3 ; 2 to 10% micron sized reactive alumina; 1 to 5% montmorillonite; 1 to 10% ceramic fibers; and from 5 to 25% of a ceramic binder or air setting agent.

REFERENCES:
patent: 3709706 (1973-01-01), Sowman
patent: 3747765 (1973-07-01), Nowak
patent: 3751271 (1973-08-01), Kimura
patent: 3878104 (1975-04-01), Guerrero
patent: 3893917 (1975-07-01), Pryor
patent: 3939079 (1976-02-01), Uchiyama
patent: 3947363 (1976-03-01), Pryor
patent: 3962081 (1976-06-01), Yarwood
patent: 4116761 (1978-09-01), Head
patent: 4264346 (1981-04-01), Mann
patent: 4265659 (1981-05-01), Blome

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