Filtration device having hardened gum formed-in-place membranes

Details Filtration device having hardened gum formed-in-place membranes Filtration device having hardened gum formed-in-place membranes

1989-10-18

1991-08-27

Woo, Jay H.

Liquid purification or separation

Filter

Material

21050028, 21050029, 21050041, 427244, 427245, 427247, 264129, 264299, B32B 2700, B01D 1300

Patent

active

050430696

ABSTRACT:
Stable formed-in-place saccharinic gum membranes on a porous support, the membranes being modified by contact with at least an equivalent of multivalent cations to anionic groups in the gum.

REFERENCES:
patent: 3349079 (1967-10-01), Freedman
patent: 3455701 (1969-07-01), Miller et al.
patent: 3565259 (1971-02-01), Meyer-Berge
patent: 3577339 (1971-05-01), Baird
patent: 4012324 (1977-03-01), Gregor
patent: 4249000 (1981-02-01), Batzer
patent: 4839203 (1989-06-01), Davis
patent: 4851120 (1989-07-01), Reineke
Kelco Div. of Merck & Co., Inc. Publication Entitled "Alginate Products for Scientific Water Control", Third Edition.
Advanced Filtration of Pulp Mill Wastes by John T. McKinnon of Int'l. Paper Co., pp. 35 and 36 and (and title page).

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