Filter aid including specific silica gel

Details Filter aid including specific silica gel Filter aid including specific silica gel

1993-10-15

1995-02-14

Spear, Frank

Liquid purification or separation

Processes

Separating

210193, 2105021, B01D 3906

Patent

active

053892682

ABSTRACT:
The present invention provides a novel filter aid which has excellent filtration properties and forms a stable cake layer on a filter member. The filter aid includes a flake-like, scale-like, or rod-like silica gel as a primary component thereof. The silica gel is approximately 5 through 100 micrometer in grain diameter and has a pore volume of approximately 0.2 through 1.5 ml/g and a specific surface area of approximately 100 through 1,000 m.sup.2 /g.

REFERENCES:
patent: 3996131 (1976-12-01), Conn
Harville et al. U.S. Statutory Invention Registration, H 89, Jul. 1, 1986.

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