Device and process for removing pyrogens from aqueous solutions

Details Device and process for removing pyrogens from aqueous solutions Device and process for removing pyrogens from aqueous solutions

1978-05-18

1981-04-14

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

2105002, 210490, 2104332, B01D 3100, B01D 1300

Patent

active

042618347

ABSTRACT:
Pyrogens can be effectively removed from an aqueous solution by passing a stream of the solution through a device comprising at least two anisotropic ultrafiltration membranes positioned in series, said membranes having nominal molecular weight limits less than the molecular weight of the pyrogens, including aggregates or micelles thereof, to be removed, wherein at least one membrane is juxtaposed with at least one other membrane so that substantially all of the skin surface of one membrane is in intimate contact with substantially all of the skin surface of the other membrane and wherein the edges of one membrane are sealed to the corresponding edges of the other membrane.

REFERENCES:
patent: 3120489 (1964-02-01), Hoch
patent: 3238056 (1966-03-01), Pall et al.
patent: 3573158 (1971-03-01), Pall et al.
patent: 3598728 (1971-08-01), Bixler et al.
patent: 3615024 (1971-10-01), Michaels

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